From my friend David Kennedy, DDS, partner to Boyd Haley.
Dear Dr. Yoho,
Just read your latest. You are a fountain of information. I am jealous of your ability to research and share.
A mother rolled her daughter by to see Boyd a few years ago. Daughter had suffered from a brain tumor which was safely removed but had had 17 MRI’s with gadolinium over the next several years getting progressively sicker each time to end up crippled with pain in a wheelchair.
The begged Dr. Haley for some NBMI but he refused explaining it was forbidden by the FDA as an unapproved drug.
Somehow they got some NBMI and within a few doses she was better. Now several years alter she has almost fully recovered. If I had the money I’d hire some university to bind gadolinium to OSR and try that as a contrast agent. We know it won’t let go.
Question: Is the chelator for gadolinium EDTA? I think Boyd told me that and the bond is strong at Ph7 but soon deteriorates like an acid injury. So if you fall off your bicycle and bang the shoulder that injury will be inflamed i.e. lower Ph. so it deposits Gd. Is my understanding correct or do they sue different chelators? I suppose the insoluble nature of Hg=OSR would probably detract from the usefulness as a contrast agent in blood.
David Kennedy, DDS
Please watch the beautiful tribute to the founder of EmeraMed Boyd Haley. He should get a Presidential Medal as he proved what is causing Alzheimer’s then discovered a remade for mercury plus a lot of other metals that are causing everyone harm.
Fantastic article. I was a neuroradiologist who finally retired early, largely for the very reasons you outlined. I was considered a troublemaker for constantly pushing to not use contrast routinely, as I felt it rarely changed my interpretation of the study. You are correct in stating that radiologists are virtually technicians now. Every exam is dictated by some insurance company, HMO, or government entity. It has to follow the official guidelines. Woe be to the lowly radiologist who suggests a more appropriate exam to a referring physician, or tries to stop an obvious redundant or frankly unnecessary study. It wasn’t that way at all when I started. We actually talked with the referring physician to determine the best way to image a patient. We considered ourselves consultants-it was part of our group’s name. Alas. No more.
Drs in general have been replaced with admins and insurance companies. It stops when people finally realize insurance is a Ponzi scheme and dump their policies to pay cash for their procedures
I too am a radiologist approaching retirement, after 40+ years. Ct exams have replaced physical exams, especially in the emergency room. This is partly due to patient obesity, but also lack of training in med school. Nurse practitioners and physician assistants often are the ones ordering the exams. Even simple X-rays are forsaken for ct, especially in trauma. Contrast exams are not needed in many instances, especially follow up studies.
Imaging studies today have become so detailed and exquisite, that the smallest abnormality now merits follow up exams, to be sure it doesn’t grow, or gets a biopsy to prove a false positive, which is often the case. This leads to over diagnosis and treatment of inconsequential lesions.
It should be noted that we cannot “order” ct or mri exams as this is illegal and self-referral. Rather we “suggest “ or “advise” studies in our reporting, leaving the actual ordering to the provider, who usually complies , often out of fear of lawsuits if something bad happens, or they don’t follow “standard of care “which is set by health administrators or professional societies.
Nothing is more reassuring to patients than a negative ct or mri, however the chief complaint often remains a mystery, inspite of “ruling out” significant pathology.
Patients should ask, or even challenge their provider to discuss the necessity of the study and whether it will change treatment plans.
Thank you for researching this and giving us a chance to respond. I must confess I was not up to date on gadolinium toxicity
After 6 months of chemo, the final 2 sessions of which had to be stopped because it was killing me, I was told I needed an MRI. I asked if I really needed it and the consultant professor oncologist said no not really, that it was a check box item, something they did as a standard routine.
After that during hospital stays, I had to take a full on defensive posture to save my own life - trying to avoid iatrogenic mistakes which were many, trying to sleep in a ward full of (male and female) dementia patients, even though I have pristine health insurance, but my so-called consultant said to use that public hospital if had any problems, as he had his private clinic there and they "knew my case." They sure did and stiffed me with a bill of €10500 for a 15 day stay for appendicitis, when everyone else would have paid just €85 for the same stay & treatment) not because I gave them my insurance number, but because the consultant gave the hospital my insurance number.
Profiting by pretending to help while causing harm is severe, as it combines several grave sins: fraud, oppression of the vulnerable, and the betrayal of a sacred trust for the sake of money. They will pay the price someday.
After reading these articles yesterday, I called the Cardiology dept at my local hospital and cancelled my scheduled echo and cardiologist's callback in Jan 2026. My stats were fine last control and I suspect this was a moneymaking move from the cardiologist, plus he was sceptical when I informed him that I had achieved good ECG and bloodpressure stats after dumping the prescribed meds and adopting my own regimen.
I've been receiving CT scans (no contrast) annually for COPD, and have had 2 PET scans within the last year to monitor the growth of 2 nodules in my right lung. I have refused traditional treatments (from biopsy to surgery to radiation) and have been treating with repurposed drugs, diet and nutrition. I recently consulted with an integrative physician who expressed significant concern about the radiation exposure from the PET scans. I'm looking forward to high dose Vit. C/DMSO IV's with him. He tests blood for Nagalese to monitor this type of cancer, and avoids scans. I noticed you did not discuss PET in the above article, and was wondering how they compared to the types of scans you covered.
PET scans and CT scans both involve ionizing radiation, but they deliver it differently and in varying amounts:
CT Scans (X-ray based imaging):
Head CT: ~2 mSv
Chest CT: ~7 mSv
Abdominal/Pelvic CT: ~10 mSv
Coronary angiography CT: ~12-16 mSv
PET Scans (radiotracer imaging):
FDG-PET tracer alone: ~7-14 mSv
However, PET is almost always performed as PET/CT, combining both modalities
PET/CT Combined:
Radiotracer component: ~7-14 mSv
CT component: ~5-25 mSv (varies by protocol)
Total: Often 15-30+ mSv
Key Points:
PET/CT delivers substantially more radiation than CT alone because you're getting both the radiotracer dose and a full CT scan
Modern protocols have reduced CT doses in PET/CT by using lower-dose "localization" CT scans when high-resolution anatomical detail isn't critical
For context: Natural background radiation is ~3 mSv/year, and a cross-country flight adds ~0.04 mSv
Clinical consideration: The higher dose from PET/CT is generally justified when metabolic imaging is essential (cancer staging, treatment response, etc.), but it's worth considering whether a standalone CT might suffice if you only need anatomical information
The radiation exposure from PET/CT can approach or exceed what you'd get from a year's worth of natural background radiation in a single study.
Goodness! I had no idea there were so many varieties. I've been OK with the number of both types of scans because I want to stay on top of growth and metabolic activity. I've managed to avoid metastasis so far (about 8 months of protocol, about 60% decline in SUV), and it's my hope that this new round of treatments I'm about to start will make scans of any type less of a factor. I hadn't heard of being able to monitor blood for this type of cancer. Once again, thanks for great information!
I was one of those with potential DCIS, and went through a round of biopsies, unnecessary X-rays, and ultimately, told I was “safe.” A few years later, I learned the center had been over diagnosing women by the thousands. All that terror and stress for nothing.
That’s when I started questioning the agenda of the medical community. I continued to do mammograms for 10 years, but haven’t for the past 4 years.
My doctor keeps trying to schedule it, and I sat, “yes” but never schedule it because, i don’t want to argue with her, because, you know, I’m just an uneducated conspiracy theorist.
Q: How many pounds of pressure does a mammogram place on a human breast?
A: 42lb
Q: How many pounds of pressure does it take to burst a tumor?
A: 22lb
Q: Why is breast cancer the only cancer diagnosed by flattening the breast between 2 hard clamps (often beyond the pain threshold)
A: there is no answer to this
So, the people who should never get a mammogram are the very ones coerced into unacceptable risk. Ive had several mammograms and never did I have this or any other info given to me that might put me off. The research I did myself horrified me. Mammograms should never be used.
Those stats are horrific. I never had any info given me re the process either before or after. I regret the ones I had done and I think my breasts have suffered from it.
I have never had a mammogram nor a colonoscopy. While the Covid and the lockdowns were hellish, they did raise up alternative voices. I appreciate Dr. Yoho's substack because his drops assure me I am not crazy for avoiding doctors. Doctors frighten me. They are in such silos that there doesn't seem to be independent thought. It is as if we are all machines to be tinkered with. Lawyers are no better. They greased the path for the mandates.
As a side note, the last medical malpractice case I worked on was based on a transcription error of a radiologist's notes. Maybe AI will clean up these human errors. And maybe AI can help clean up what I call 'defensive medicine' where a doctor over prescribes or over requests for tests to avoid liability - playing a type of hot potato where someone else will pay for errors.
I frighten doctors because not only do I ask questions, but I research all potential medications and refuse whatever I deem harmful. I am on my 2nd cardiologist since my open heart surgery 1yr ago, and I quit 10/11 of my prescribed meds, substituting supplements and vitamins. I was already a sceptic due to the scamdemic, and my post-op care left much wanting! It's a huge learning curve but I enjoy learning 😉
As a former transcriptionist and proofreader (though not a medical transcriptionist), I know that human errors are inevitable. If a completely accurate transcript is expected, a proofreader should be hired to listen to the audio while checking the transcript. Of course, this will never happen, and it breaks my heart to read about transcription or other communication mistakes that killed patients. However, I don't think AI will help, since whenever I read closed captions of audio, there are tons of mistakes.
I was recently blindsided by an older driver who blew a stop sign. So despite avoiding allopathic medicine for decades, I ended up in Critical Care being CT scanned for internal damage from four broken upper ribs, etc. I have been detoxing and healing, and almost completely have had to get away from modern medicine to do so. Three practitioners could not identify the obvious separated shoulder that I have, and one insisted on doing an MRA with ganolidium to check the labrum (which would not have made any difference in treatment.) That was the end of that relationship - even if it costs me in the eventual legal settlement, my intuition told me NO on that further toxic exposure. Thank you for all the info you so generously present, including this!
Thanks for this information and further support as to why to never engage with the medical mafia. I don't do any testing or any medical visits. I don't take poison drugs or toxic vaccines. I am going on 76 years and am seldom sick.
If anything the medical mafia did that was even slightly good for the patient, over the last several decades we would be seeing less use of medicine (fewer patients) and much more health. We see the exact opposite, BIG TIME.
Informed consent? What the heck is that? It's a joke. Just like the doctors and the medical community. Since they stick to the germ theory mantra, it is inevitable you are never going to heal. And that is what makes medicine super profitable, not healthy.
Excellent article! Profound research! Thank you so much for spending time doing it and informing us.
I had an infant patient whose doctors convinced parents to do godonlinujm for contrast. Parents did notice a change after using it and the child started developing slower, could not walk for a long time, was behind her mile stones.
ONE thing for sure about CT - it is a favorite imaging in ER. No matter how much patients not to do it, doctors say - they will not provide any care UNLESS CT is done, not Ulatrasound. ER=CT scan.
I must have had 12 MRIs over 35 years but I stopped allowing them to inject me with gadolinium and so I stopped having MRIs about 10 years ago.Now I wonder how I can rid my body of the gadolinium. In the UK it doesn’t appear that either the radiologists or the doctors recognise any problem with gadolinium.
I just researched it a little and although saunas may help symptoms it doesn’t get rid of the gadolinium. I can’t see anything that could be used for chelation, have you found anything?
Dr. Joseph Mercola suggests NAC. (400 mg) w/food. NAC requires “breaks”. Also monitor Copper levels.
And cysteine rich foods like eggs, grass-fed meat & raw dairy products. Legumes for Vegetarians. For chemo radiation induced injury. Along with Sunlite, proper breathing & grounding.
Mercola is a very rich man who generated his wealth from health articles and supplements as a one-two marketing punch that has been extremely financially successful for him. However, to me, Mercola’s articles are like a Bible written by a gnostic - most of the information is accurate… until you come across something that’s not which changes the outcome entirely.
For example Mercola wrote the book on Keto - Fat for Fuel. As a cancer patient I followed that book to the letter as at the time, keto was suggested as a cure for cancer.
The message in the book was to stay on keto full-time for the rest of your life. Anyway sometime later he changed his position (which he does often), saying that you should cycle in and out of ketogenesis a few times a week. I felt ill when I read those later articles on keto, he never pointed out his omission/error but instead quietly inserted this new information. Eventually after several such articles I couldn’t let it go. I have suffered health wise following the information in his book and continue to suffer. So when I pointed out in the comments section that having searched his book over and over for this information to cycle in and out of ketosis and never found ANY, I WAS BANNED from his website!!! And this from the man who complained loudly about being censored, appearing as the peoples hero, which he is not.
If you want to see the dark side of Mercola, you should listen to Barbara Loe Fisher. It’s explosive - apparently he’s using a psychic who is channelling a demon spirit, I kid you not.
With regard to the whole breast cancer thing. It’s still astounding to me and of course, very telling that you see breast cancer awareness/fundraising lids on super-sugary yogurts and such. We have a local restaurant (nicest owners ever) who gave a portion of proceeds for the “cause” from the sale of dirty sodas. If you know what those are, the irony will hit you smack dab in the face! Thank you as always for your truth telling. It’s very likely lifesaving. I tell everyone about you!
Thank you for this! I had my sole root canal tooth (which was performed almost against my wishes about a decade ago) extracted last month and felt a burst of energy almost instantly. I also take iodine 65mg pills any time I feel rundown. I guess I have been underdosing!
For many years I have not been a fan of mammograms, not believing their purported benefits and fearing their harms. My doctor badgered me into finally getting a mammogram which resulted in a DCIS diagnosis. This was about 12 yrs. ago. I was told I had breast cancer, needed surgery, 6 weeks of daily radiation, and 5 years of tamoxifen. They did their best to scare me to death with the "C" word. Well, let's see, all that would benefit the surgeon, the anesthesiologist, the radiologist, the hospital and Big Pharma. Am I forgetting anyone? When I asked the surgeon what stage my "cancer" was he said, "stage 0" I said, "uh....just what a minute".
I refused any standard of care that they were offering and struck out on my own to do some research and take a watchful surveillance approach. I also changed my diet to natural, organic, whole foods, made exercise a priority, bought a sauna, get annual thermography exams, do BSE, and stay out of my primary care doctor's office.
I don't know what tomorrow will bring - perhaps my DCIS will develop into a cancer, perhaps not. But I trust my health to my God, Who is my great Healer, and my faith that He is in control.
Thanks Dr. Yoho for all your excellent articles and the great information that you provide.
You did the right therapy yourself… you did your part. The God who says “ I AM the God Who heals you” will do the rest. I could only wish more people could see that truth.
Doesn't "stage 0" mean there is NO cancer? What did zero mean to that doctor?
My 50-year-old cousin had a mammogram, then went back for a biopsy because the doctor noticed something suspicious on her mammogram.
The biopsy procedure left her with a scar on her chest, but she told me with a smile that it was okay. She's just happy that they didn't find any cancer.
I didn't know what to say to her at that point.
I don't believe in mammograms for myself. I know that it's a personal decision that every woman has to make on her own.
That is horrific. Good for you walking out! I wish I had done that when my regular dentist browbeat me into accepting my only root canal 10 years ago. I still regret it.
Thank you for this. I have been keen on the harms of both MRI's and CT's for some time now and have a hard time convincing others to be more selective when they decide to schedule one. This will be a great reference. I really love your last paragraph it totally summed it up for me.
True healers have relationships with patients. Radiologists have none, so they are technicians, not physicians. They see you solely as a billing code and a possible liability. Your health is a distant consideration for them.
Hospitals, as always, focus exclusively on net revenue. Complications increase this by generating new charges.
The FDA acts on behalf of industry because over half of its $5 billion operating revenue comes directly from corporate “user fees” incurred during the patent process. (See Butchered by “Healthcare.”)
These groups are all corporate parasites. True healers have relationships with patients.
My mother was in the ER the other day after suffering a probable Mini Stroke. (TIA)
The neurologist scheduled her for another echocardiogram on the 30th, despite the fact that she had an echo performed during this TIA event.
Mum suffers from atrial fibrillation and had a pacemaker implanted nearly 12 years ago. This neurologist was advised however wants to schedule an MRI nonetheless.
This article now has me very concerned for my 93 year old mother...
Would like to say that in 35 years of Functional Medicine Practice, and OMP, one of the most common things that I and some of my colleagues saw in people with fibrilation, rapid heartbeat, (heart murmur), shortness of breath and acid reflux etc. was the presence of hiatal hernia. The weaker the hiatal membrane, the stronger the symptoms. It is known to cause heart attack on healthy hearts after a full meal. The Vagus Nerve is involved and causes some unusual symptoms, such as anxiety feelings and even panic attacks.
I call it the great deceiver, as approximately 65% to 70% of diagnosed heart attack patients I treated over the decades had Hiatal Hernias. When we did a simple technique to cause the stomach to normalize, the heart symptoms and acid reflux, anxiety and panic attacks resolved, and the Hiatal membrane even healed to varying degrees. This is never looked for by Cardiologists. I truly think that it is because it isn't financially feasible to treat it, whereas treating the heart symptoms can be a lifetime cash cow for them.
As you know, Doctor, there are no “ists” in functional medicine (cardiolog”ists”, neurolog”ists”, oncolog”ists”, etc.) “Ists” seperate the functions of the body, separating them from one another. They must be treated as one entity, in order to successfully treat any health condition. Whole body health can only be achieved in this paradigm.
Thank you for educating those who are sincerely seeking knowledge.
Those symptoms you list sound like what I was experiencing in the months before my heart surgery even up until my admission. The acid reflux is still an issue but I won't take pills for it because I learned that they suppress natural stomach processes. My mother too had hiatus hernia and actually she had nervous issues and they overdosed her for overactive thyroid. Do you have any non-invasive suggestions on how to treat my hiatus hernia?
" When we did a simple technique to cause the stomach to normalize, the heart symptoms and acid reflux, anxiety and panic attacks resolved, and the Hiatal membrane even healed to varying degrees.."
Thirty years ago, I took my 6-year-old son (who wasn't having any dental problems) to a dentist for a standard annual exam. He had been there before and had x-rays taken in previous visits.
The dental assistant took x-rays, then she came back and said they weren't taken correctly and she would have to do them again because the dentist always needs to see x-rays.
I told her NO, we're not doing x-rays again.
I remember my son looking at me funny because I was going against the assistant's wishes.
The doctor was able to do an exam on his baby teeth without any problems.
From my friend David Kennedy, DDS, partner to Boyd Haley.
Dear Dr. Yoho,
Just read your latest. You are a fountain of information. I am jealous of your ability to research and share.
A mother rolled her daughter by to see Boyd a few years ago. Daughter had suffered from a brain tumor which was safely removed but had had 17 MRI’s with gadolinium over the next several years getting progressively sicker each time to end up crippled with pain in a wheelchair.
The begged Dr. Haley for some NBMI but he refused explaining it was forbidden by the FDA as an unapproved drug.
Somehow they got some NBMI and within a few doses she was better. Now several years alter she has almost fully recovered. If I had the money I’d hire some university to bind gadolinium to OSR and try that as a contrast agent. We know it won’t let go.
Question: Is the chelator for gadolinium EDTA? I think Boyd told me that and the bond is strong at Ph7 but soon deteriorates like an acid injury. So if you fall off your bicycle and bang the shoulder that injury will be inflamed i.e. lower Ph. so it deposits Gd. Is my understanding correct or do they sue different chelators? I suppose the insoluble nature of Hg=OSR would probably detract from the usefulness as a contrast agent in blood.
David Kennedy, DDS
Please watch the beautiful tribute to the founder of EmeraMed Boyd Haley. He should get a Presidential Medal as he proved what is causing Alzheimer’s then discovered a remade for mercury plus a lot of other metals that are causing everyone harm.
https://youtu.be/z6BprvmZfmQ
Professor Haley says mercury vapor is causing Alzheimer’s.
STOP THE US UNETHICAL EXPERIMENT ON PORTUGUESE ORPHANS https://youtu.be/Rfa-RE1TzvU?si=p0BqPk5rcFULsC7Vhttps://www.youtube.com/watch?v=nxebvzSRLvI
To learn more about NBMI listen to his IAOMT Podcast where he explains how he discovered the amazing solution to mercury poisoning.
https://youtu.be/tSRWduC4Cz8?si=dExJD2TiOBxrh0P5
1) See my NBMI articles in my archives; one of them is: https://robertyoho.substack.com/p/338-what-white-mice-and-columbian?utm_source=publication-search
2) NBMI is the best galodinium chelator; you can get it from David; see the article. EDTA is less effective.
3) Binding mercury with NBMI does not work as a contrast agent for various technical reasons.
4) Some people get dramatic results with NBMI heavy metal chelation, but I have not.
Fantastic article. I was a neuroradiologist who finally retired early, largely for the very reasons you outlined. I was considered a troublemaker for constantly pushing to not use contrast routinely, as I felt it rarely changed my interpretation of the study. You are correct in stating that radiologists are virtually technicians now. Every exam is dictated by some insurance company, HMO, or government entity. It has to follow the official guidelines. Woe be to the lowly radiologist who suggests a more appropriate exam to a referring physician, or tries to stop an obvious redundant or frankly unnecessary study. It wasn’t that way at all when I started. We actually talked with the referring physician to determine the best way to image a patient. We considered ourselves consultants-it was part of our group’s name. Alas. No more.
great comment; I pinned it to the top.
Drs in general have been replaced with admins and insurance companies. It stops when people finally realize insurance is a Ponzi scheme and dump their policies to pay cash for their procedures
How interesting. I am literally about to minimise my health insurance for the new year, because I calculated the same re dental procedures
Read Judas Dentistry.
I too am a radiologist approaching retirement, after 40+ years. Ct exams have replaced physical exams, especially in the emergency room. This is partly due to patient obesity, but also lack of training in med school. Nurse practitioners and physician assistants often are the ones ordering the exams. Even simple X-rays are forsaken for ct, especially in trauma. Contrast exams are not needed in many instances, especially follow up studies.
Imaging studies today have become so detailed and exquisite, that the smallest abnormality now merits follow up exams, to be sure it doesn’t grow, or gets a biopsy to prove a false positive, which is often the case. This leads to over diagnosis and treatment of inconsequential lesions.
It should be noted that we cannot “order” ct or mri exams as this is illegal and self-referral. Rather we “suggest “ or “advise” studies in our reporting, leaving the actual ordering to the provider, who usually complies , often out of fear of lawsuits if something bad happens, or they don’t follow “standard of care “which is set by health administrators or professional societies.
Nothing is more reassuring to patients than a negative ct or mri, however the chief complaint often remains a mystery, inspite of “ruling out” significant pathology.
Patients should ask, or even challenge their provider to discuss the necessity of the study and whether it will change treatment plans.
Thank you for researching this and giving us a chance to respond. I must confess I was not up to date on gadolinium toxicity
After 6 months of chemo, the final 2 sessions of which had to be stopped because it was killing me, I was told I needed an MRI. I asked if I really needed it and the consultant professor oncologist said no not really, that it was a check box item, something they did as a standard routine.
After that during hospital stays, I had to take a full on defensive posture to save my own life - trying to avoid iatrogenic mistakes which were many, trying to sleep in a ward full of (male and female) dementia patients, even though I have pristine health insurance, but my so-called consultant said to use that public hospital if had any problems, as he had his private clinic there and they "knew my case." They sure did and stiffed me with a bill of €10500 for a 15 day stay for appendicitis, when everyone else would have paid just €85 for the same stay & treatment) not because I gave them my insurance number, but because the consultant gave the hospital my insurance number.
Profiting by pretending to help while causing harm is severe, as it combines several grave sins: fraud, oppression of the vulnerable, and the betrayal of a sacred trust for the sake of money. They will pay the price someday.
ghost those bastards
That is scandalous!
After reading these articles yesterday, I called the Cardiology dept at my local hospital and cancelled my scheduled echo and cardiologist's callback in Jan 2026. My stats were fine last control and I suspect this was a moneymaking move from the cardiologist, plus he was sceptical when I informed him that I had achieved good ECG and bloodpressure stats after dumping the prescribed meds and adopting my own regimen.
cardiologists are great at managing cogestive heart failure
You know who pushed for “standard of care” don’t you. Elon musks uncle. A MD/DC. “It’s one giant club, and you aren’t in it”
thanks and I pinned your comment to the top
I've been receiving CT scans (no contrast) annually for COPD, and have had 2 PET scans within the last year to monitor the growth of 2 nodules in my right lung. I have refused traditional treatments (from biopsy to surgery to radiation) and have been treating with repurposed drugs, diet and nutrition. I recently consulted with an integrative physician who expressed significant concern about the radiation exposure from the PET scans. I'm looking forward to high dose Vit. C/DMSO IV's with him. He tests blood for Nagalese to monitor this type of cancer, and avoids scans. I noticed you did not discuss PET in the above article, and was wondering how they compared to the types of scans you covered.
PET scans and CT scans both involve ionizing radiation, but they deliver it differently and in varying amounts:
CT Scans (X-ray based imaging):
Head CT: ~2 mSv
Chest CT: ~7 mSv
Abdominal/Pelvic CT: ~10 mSv
Coronary angiography CT: ~12-16 mSv
PET Scans (radiotracer imaging):
FDG-PET tracer alone: ~7-14 mSv
However, PET is almost always performed as PET/CT, combining both modalities
PET/CT Combined:
Radiotracer component: ~7-14 mSv
CT component: ~5-25 mSv (varies by protocol)
Total: Often 15-30+ mSv
Key Points:
PET/CT delivers substantially more radiation than CT alone because you're getting both the radiotracer dose and a full CT scan
Modern protocols have reduced CT doses in PET/CT by using lower-dose "localization" CT scans when high-resolution anatomical detail isn't critical
For context: Natural background radiation is ~3 mSv/year, and a cross-country flight adds ~0.04 mSv
Clinical consideration: The higher dose from PET/CT is generally justified when metabolic imaging is essential (cancer staging, treatment response, etc.), but it's worth considering whether a standalone CT might suffice if you only need anatomical information
The radiation exposure from PET/CT can approach or exceed what you'd get from a year's worth of natural background radiation in a single study.
Goodness! I had no idea there were so many varieties. I've been OK with the number of both types of scans because I want to stay on top of growth and metabolic activity. I've managed to avoid metastasis so far (about 8 months of protocol, about 60% decline in SUV), and it's my hope that this new round of treatments I'm about to start will make scans of any type less of a factor. I hadn't heard of being able to monitor blood for this type of cancer. Once again, thanks for great information!
watch what they do and always verify
I was one of those with potential DCIS, and went through a round of biopsies, unnecessary X-rays, and ultimately, told I was “safe.” A few years later, I learned the center had been over diagnosing women by the thousands. All that terror and stress for nothing.
That’s when I started questioning the agenda of the medical community. I continued to do mammograms for 10 years, but haven’t for the past 4 years.
My doctor keeps trying to schedule it, and I sat, “yes” but never schedule it because, i don’t want to argue with her, because, you know, I’m just an uneducated conspiracy theorist.
This is criminal.
the whole medical thing is criminal
Q: How many pounds of pressure does a mammogram place on a human breast?
A: 42lb
Q: How many pounds of pressure does it take to burst a tumor?
A: 22lb
Q: Why is breast cancer the only cancer diagnosed by flattening the breast between 2 hard clamps (often beyond the pain threshold)
A: there is no answer to this
So, the people who should never get a mammogram are the very ones coerced into unacceptable risk. Ive had several mammograms and never did I have this or any other info given to me that might put me off. The research I did myself horrified me. Mammograms should never be used.
Those stats are horrific. I never had any info given me re the process either before or after. I regret the ones I had done and I think my breasts have suffered from it.
not for screening anyway
I am 62 and have never had a mammogram..am also an unemployed nurse because I choose to be. The medical regime is terrible..
I am 58 and I quit mammograms when the last one was overly painful. Medicine is still very much an experimental science.
they are trying to kill us
Most things are 🤣
I have never had a mammogram nor a colonoscopy. While the Covid and the lockdowns were hellish, they did raise up alternative voices. I appreciate Dr. Yoho's substack because his drops assure me I am not crazy for avoiding doctors. Doctors frighten me. They are in such silos that there doesn't seem to be independent thought. It is as if we are all machines to be tinkered with. Lawyers are no better. They greased the path for the mandates.
As a side note, the last medical malpractice case I worked on was based on a transcription error of a radiologist's notes. Maybe AI will clean up these human errors. And maybe AI can help clean up what I call 'defensive medicine' where a doctor over prescribes or over requests for tests to avoid liability - playing a type of hot potato where someone else will pay for errors.
I frighten doctors because not only do I ask questions, but I research all potential medications and refuse whatever I deem harmful. I am on my 2nd cardiologist since my open heart surgery 1yr ago, and I quit 10/11 of my prescribed meds, substituting supplements and vitamins. I was already a sceptic due to the scamdemic, and my post-op care left much wanting! It's a huge learning curve but I enjoy learning 😉
noone can say it has not been interesting
we have a lot in common!!
As a former transcriptionist and proofreader (though not a medical transcriptionist), I know that human errors are inevitable. If a completely accurate transcript is expected, a proofreader should be hired to listen to the audio while checking the transcript. Of course, this will never happen, and it breaks my heart to read about transcription or other communication mistakes that killed patients. However, I don't think AI will help, since whenever I read closed captions of audio, there are tons of mistakes.
Me either.
I was recently blindsided by an older driver who blew a stop sign. So despite avoiding allopathic medicine for decades, I ended up in Critical Care being CT scanned for internal damage from four broken upper ribs, etc. I have been detoxing and healing, and almost completely have had to get away from modern medicine to do so. Three practitioners could not identify the obvious separated shoulder that I have, and one insisted on doing an MRA with ganolidium to check the labrum (which would not have made any difference in treatment.) That was the end of that relationship - even if it costs me in the eventual legal settlement, my intuition told me NO on that further toxic exposure. Thank you for all the info you so generously present, including this!
what a story
Thanks for this information and further support as to why to never engage with the medical mafia. I don't do any testing or any medical visits. I don't take poison drugs or toxic vaccines. I am going on 76 years and am seldom sick.
If anything the medical mafia did that was even slightly good for the patient, over the last several decades we would be seeing less use of medicine (fewer patients) and much more health. We see the exact opposite, BIG TIME.
Informed consent? What the heck is that? It's a joke. Just like the doctors and the medical community. Since they stick to the germ theory mantra, it is inevitable you are never going to heal. And that is what makes medicine super profitable, not healthy.
Excellent article! Profound research! Thank you so much for spending time doing it and informing us.
I had an infant patient whose doctors convinced parents to do godonlinujm for contrast. Parents did notice a change after using it and the child started developing slower, could not walk for a long time, was behind her mile stones.
ONE thing for sure about CT - it is a favorite imaging in ER. No matter how much patients not to do it, doctors say - they will not provide any care UNLESS CT is done, not Ulatrasound. ER=CT scan.
Thanks again!
I must have had 12 MRIs over 35 years but I stopped allowing them to inject me with gadolinium and so I stopped having MRIs about 10 years ago.Now I wonder how I can rid my body of the gadolinium. In the UK it doesn’t appear that either the radiologists or the doctors recognise any problem with gadolinium.
NBMI probably does but it's expensive, search my substack for 2 articles
I’m going to try the sauna. Chelation is the only thing I can think of.
I just researched it a little and although saunas may help symptoms it doesn’t get rid of the gadolinium. I can’t see anything that could be used for chelation, have you found anything?
Dr. Joseph Mercola suggests NAC. (400 mg) w/food. NAC requires “breaks”. Also monitor Copper levels.
And cysteine rich foods like eggs, grass-fed meat & raw dairy products. Legumes for Vegetarians. For chemo radiation induced injury. Along with Sunlite, proper breathing & grounding.
Ref: Nature Mag 10/1/25 & MIT 10/1/25.
forget "DR Mercola" I've found most of his advice is useless and some of it it downright dangerous!
he lost it 2 years ago so has been inconsistent
I disagree. I subscribe to Mercola newsletters and find that he provides illumination on many health topics
Mercola is a very rich man who generated his wealth from health articles and supplements as a one-two marketing punch that has been extremely financially successful for him. However, to me, Mercola’s articles are like a Bible written by a gnostic - most of the information is accurate… until you come across something that’s not which changes the outcome entirely.
For example Mercola wrote the book on Keto - Fat for Fuel. As a cancer patient I followed that book to the letter as at the time, keto was suggested as a cure for cancer.
The message in the book was to stay on keto full-time for the rest of your life. Anyway sometime later he changed his position (which he does often), saying that you should cycle in and out of ketogenesis a few times a week. I felt ill when I read those later articles on keto, he never pointed out his omission/error but instead quietly inserted this new information. Eventually after several such articles I couldn’t let it go. I have suffered health wise following the information in his book and continue to suffer. So when I pointed out in the comments section that having searched his book over and over for this information to cycle in and out of ketosis and never found ANY, I WAS BANNED from his website!!! And this from the man who complained loudly about being censored, appearing as the peoples hero, which he is not.
If you want to see the dark side of Mercola, you should listen to Barbara Loe Fisher. It’s explosive - apparently he’s using a psychic who is channelling a demon spirit, I kid you not.
https://www.nvic.org/newsletter/may-2024/defending-freedom-of-religion
Is NAC same as NAD? I have been taking 2 capsules NAD daily for most of 2025
With regard to the whole breast cancer thing. It’s still astounding to me and of course, very telling that you see breast cancer awareness/fundraising lids on super-sugary yogurts and such. We have a local restaurant (nicest owners ever) who gave a portion of proceeds for the “cause” from the sale of dirty sodas. If you know what those are, the irony will hit you smack dab in the face! Thank you as always for your truth telling. It’s very likely lifesaving. I tell everyone about you!
Most breast cancer is related to root canals, and if you remove them, many are cured. Taking iodine in several hundred mg a day doses helps too
Thank you for this! I had my sole root canal tooth (which was performed almost against my wishes about a decade ago) extracted last month and felt a burst of energy almost instantly. I also take iodine 65mg pills any time I feel rundown. I guess I have been underdosing!
that is the right dose of iodine unless you have breast cancer. In that case push your dose into the hundreds of mg if you tolerate it.
Oh my, I'll have to tell my sister that.
I'm 67 years old. I've never had a mammogram and from what I've learned over the past few years, I never will.
I'm about 27 mammograms behind, right? They say we should start at age 40.
I am not far behind you. Maybe we should form a club!
For many years I have not been a fan of mammograms, not believing their purported benefits and fearing their harms. My doctor badgered me into finally getting a mammogram which resulted in a DCIS diagnosis. This was about 12 yrs. ago. I was told I had breast cancer, needed surgery, 6 weeks of daily radiation, and 5 years of tamoxifen. They did their best to scare me to death with the "C" word. Well, let's see, all that would benefit the surgeon, the anesthesiologist, the radiologist, the hospital and Big Pharma. Am I forgetting anyone? When I asked the surgeon what stage my "cancer" was he said, "stage 0" I said, "uh....just what a minute".
I refused any standard of care that they were offering and struck out on my own to do some research and take a watchful surveillance approach. I also changed my diet to natural, organic, whole foods, made exercise a priority, bought a sauna, get annual thermography exams, do BSE, and stay out of my primary care doctor's office.
I don't know what tomorrow will bring - perhaps my DCIS will develop into a cancer, perhaps not. But I trust my health to my God, Who is my great Healer, and my faith that He is in control.
Thanks Dr. Yoho for all your excellent articles and the great information that you provide.
DCIS has the same mortality as any woman of your age. It is a fake dx
I agree!
You did the right therapy yourself… you did your part. The God who says “ I AM the God Who heals you” will do the rest. I could only wish more people could see that truth.
Vaya con Dios, Kathryn.
Truthseeker, thank you!
Doesn't "stage 0" mean there is NO cancer? What did zero mean to that doctor?
My 50-year-old cousin had a mammogram, then went back for a biopsy because the doctor noticed something suspicious on her mammogram.
The biopsy procedure left her with a scar on her chest, but she told me with a smile that it was okay. She's just happy that they didn't find any cancer.
I didn't know what to say to her at that point.
I don't believe in mammograms for myself. I know that it's a personal decision that every woman has to make on her own.
Twenty years ago, I went to a new dentist for an annual exam.
The dental assistant said she was going to take x-rays. When I asked how many, she said 19, yes, NINETEEN.
I told her I wasn't having any problems and didn't want that many x-rays. She said they always do that many for new patients.
That's when I grabbed my purse, stood up, and said I was leaving.
I never went back.
That is horrific. Good for you walking out! I wish I had done that when my regular dentist browbeat me into accepting my only root canal 10 years ago. I still regret it.
don't regret
get it out
replace with a ceramic if you can afford it
read Judas Dentistry
Thank you for this. I have been keen on the harms of both MRI's and CT's for some time now and have a hard time convincing others to be more selective when they decide to schedule one. This will be a great reference. I really love your last paragraph it totally summed it up for me.
True healers have relationships with patients. Radiologists have none, so they are technicians, not physicians. They see you solely as a billing code and a possible liability. Your health is a distant consideration for them.
Hospitals, as always, focus exclusively on net revenue. Complications increase this by generating new charges.
The FDA acts on behalf of industry because over half of its $5 billion operating revenue comes directly from corporate “user fees” incurred during the patent process. (See Butchered by “Healthcare.”)
These groups are all corporate parasites. True healers have relationships with patients.
thanks!
🎯
My mother was in the ER the other day after suffering a probable Mini Stroke. (TIA)
The neurologist scheduled her for another echocardiogram on the 30th, despite the fact that she had an echo performed during this TIA event.
Mum suffers from atrial fibrillation and had a pacemaker implanted nearly 12 years ago. This neurologist was advised however wants to schedule an MRI nonetheless.
This article now has me very concerned for my 93 year old mother...
She needs magnesium; see my a fib article
Would like to say that in 35 years of Functional Medicine Practice, and OMP, one of the most common things that I and some of my colleagues saw in people with fibrilation, rapid heartbeat, (heart murmur), shortness of breath and acid reflux etc. was the presence of hiatal hernia. The weaker the hiatal membrane, the stronger the symptoms. It is known to cause heart attack on healthy hearts after a full meal. The Vagus Nerve is involved and causes some unusual symptoms, such as anxiety feelings and even panic attacks.
I call it the great deceiver, as approximately 65% to 70% of diagnosed heart attack patients I treated over the decades had Hiatal Hernias. When we did a simple technique to cause the stomach to normalize, the heart symptoms and acid reflux, anxiety and panic attacks resolved, and the Hiatal membrane even healed to varying degrees. This is never looked for by Cardiologists. I truly think that it is because it isn't financially feasible to treat it, whereas treating the heart symptoms can be a lifetime cash cow for them.
As you know, Doctor, there are no “ists” in functional medicine (cardiolog”ists”, neurolog”ists”, oncolog”ists”, etc.) “Ists” seperate the functions of the body, separating them from one another. They must be treated as one entity, in order to successfully treat any health condition. Whole body health can only be achieved in this paradigm.
Thank you for educating those who are sincerely seeking knowledge.
My atrial fibrillation article is worth scanning. Mg deficiency is universal.
Those symptoms you list sound like what I was experiencing in the months before my heart surgery even up until my admission. The acid reflux is still an issue but I won't take pills for it because I learned that they suppress natural stomach processes. My mother too had hiatus hernia and actually she had nervous issues and they overdosed her for overactive thyroid. Do you have any non-invasive suggestions on how to treat my hiatus hernia?
" When we did a simple technique to cause the stomach to normalize, the heart symptoms and acid reflux, anxiety and panic attacks resolved, and the Hiatal membrane even healed to varying degrees.."
What is this technique, please?
Yes! One of my heart med replacements is a Magnesium pill with 6 kinds. The biggest pill I ever took.
see the complete article
Thirty years ago, I took my 6-year-old son (who wasn't having any dental problems) to a dentist for a standard annual exam. He had been there before and had x-rays taken in previous visits.
The dental assistant took x-rays, then she came back and said they weren't taken correctly and she would have to do them again because the dentist always needs to see x-rays.
I told her NO, we're not doing x-rays again.
I remember my son looking at me funny because I was going against the assistant's wishes.
The doctor was able to do an exam on his baby teeth without any problems.
Dentists are the second most crooked specialty after pediatricians