A "discussion" with Dr. Garth Davis M.D.

I put "discussion" in quotes, for reasons which will become obvious.

The Pyramid of Disagreement. You should be using the top 3 levels at all times.

I've written this because Dr. Davis has blocked me from leaving comments on his Facebook page, and I really need to reply to his last reply to me.

See https://www.facebook.com/drgarth/posts/834305339923709
I was acutely aware as an omnivore, of "walking into the lion's den", by posting a dissenting comment on a vegan's thread, but it was necessary as I had evidence of harm of vegan diets. The evidence on Denise Minger's teeth is supported by her own blog. The evidence on Jay Dinshah's fatal heart attack at the age of 66 is supported by a YouTube video by Dr Michael Greger, the vegan M.D. Dr Greger's video showed evidence of other harms caused by vegan diets that were lacking in vegan DHA & Vitamin B12.

EDIT: Dr. Davis has deleted all of my comments. However, he hasn't deleted his replies to them.

It's impossible to prove a hypothesis, even with n=1,000,000, as the 1,000,001th subject could be the "Black Swan" that disproves it. On the other hand, it only takes 1 "Black Swan" to disprove it. Therefore, n=1 evidence of harm is sufficient to disprove a hypothesis that something is harmless. See Falsifiability.

I provided n=2 evidence of harm.

Dr Davis's final comment to me:-
" Nigel Kinbrum really? You are giving me a n of 2. There is no data that vegans teeth fall out. If she was vitamin K deficient then she was eating a crappy diet lacking greens. It so stupid it's just silly. I also laugh at the idea that authority is some how bad. I have written a book with thousands of references. I give lectures on the topic and have treated thousands of patients yet Denise knows more than me. Silly."

My reply:-
1. As stated above, an n of 2 is double the n needed to disprove your hypothesis that there is no evidence of harm for vegan diets. I'd already pointed that out to you in a previous comment that you've since deleted.

2. I said that Denise's teeth were disintegrating. I didn't say that they fell out. That's a strawman fallacy.

3. Greens contain phylloquinone (Vitamin K1), not menatetrenone (Vitamin K2). Only Vitamin K2 carboxylates osteocalcin in MGP's. The only vegan source of Vitamin K2 is Nattō, a.k.a. pungent beans in a snot sauce.

4. See 3. Denise Minger was not eating a "crappy diet". That's an extremely insulting & uninformed comment for a medical professional to make about someone.

5. I never claimed that authority is bad. When you say "I am an expert in "X", therefore I am never wrong about "X".", that's an "Appeal to authority" fallacy. Jeez!

6. See 5. I never claimed that Denise Minger knows more than you. That's another strawman fallacy.


So, there you have it. Comments will only be approved if they meet my Moderation Policy. As long as I am blocked from commenting on Dr. Davis' Facebook page, Dr. Davis is blocked from commenting on my blog.

Warning signs to look out for when a heart attack is coming.

R.I.P. Davy Jones. I sang "Daydream Believer" at karaoke two nights running as a tribute.


The article Davy Jones Dead: Warning Signs to Look Out for When a Heart Attack is Coming caught my attention.

"At 66, Davy Jones appears to be living a healthy life. He was a vegetarian. He goes on a regular morning run. He was not just a horse owner but also a rider. Davy Jones seems to be generally fit and healthy to succumb to a deadly heart attack."

He's like H. Jay Dinshah, who also died of a heart attack at the age of 66. I strongly advise vegetarians & vegans to watch "Dr Greger: 2003 - Optimum Vegetarian Nutrition - Omega 3 and B12"

Vegetarians & vegans, listen up!

By vegetarian, I mean someone who does not eat the flesh of animals. This includes fish and chicken. By vegan, I mean someone who does not eat any animal produce, including milk or eggs.

Dr. Michael Greger M.D. ("The Vegan M.D.") has an informative and witty lecture "Optimum Vegetarian Nutrition: Omega 3 and B12".


In a nutshell, vegetarians & vegans don't live any longer than omnivores – as shown in a study of 28,000 subjects. Vegetarians & vegans have the same rates of coronary heart disease as omnivores, but double the rates of degenerative brain diseases like Alzheimer's Disease. WHY? There are two reasons.

1) Vegetarians and vegans don't eat oily fish and most don't eat cracked or ground-up flaxseed/linseed either. This means a deficiency in omega-3 fats. This increases the risk of diabetes, certain cancers and coronary heart disease.

Men are much poorer converters of alpha-linolenic acid (the omega-3 fatty acid in flaxseeds/linseeds) into DHA than women.

See Eicosapentaenoic and docosapentaenoic acids are the principal products of α-linolenic acid metabolism in young men,

Conversion of α-linolenic acid to eicosapentaenoic, docosapentaenoic and docosahexaenoic acids in young women and

Extremely Limited Synthesis of Long Chain Polyunsaturates in Adults: Implications for Their Dietary Essentiality and Use as Supplements.

2) Only animal produce naturally contains Vitamin B12. Lack of B12 in the diet raises the level of homocysteine in the blood, which damages artery walls. This raises the risk of coronary heart disease & doubles the risk of degenerative brain diseases like Alzheimer's Disease.

Also:-
3) Diets low in Vitamin K2 increase the risk factor for CHD, osteoporosis and weak teeth. See Vitamin K.

What to do?

1) Eat ~25g/day of ground flaxseeds (or supplement with ~10g/day of flaxseed oil). Vegan men should also supplement with ~1000mg/day vegan DHA.

2) Eat foods fortified with vegan B12 or supplement with vegan B12.

3) Eat foods high in Vitamin K2. See For Vegans for a list of things to maximise health on a vegan diet.