Q & A


  1. Hi Mr Paleo,
    Very much enjoy this site ... from your post on Cris Kesser's comments. Even though type A, you make some fundamental erors analyzing D'Adamo's earlier blood-type diet books (almost 20 years old, now). You and he are both type A's but he makes certain to eat a little portion of animal protein {+ he made sure that we all knew that the Inuit peoples around Hudson Bay were mostly type A's who eat mostly fish and game animals and had superb health}!
    There are numerous problems with the vegetarian/vegan approach: 1) is the renowned vitamin B12 deficiency; 2) les well known but the impact is slow to accumulate is the amino acid 'taurine' deficiency (Ryan Huxtable). Found only in animals, it is a provisionally essential EAA (because humans stop making it with the onset of puberty); 3) taurine has some vital roles in the human body - a) it forms the bile salt taurocholate - the linking of taurine plus cholesterol (another animal-only chemical) & b) it forms the potassium ion pump for all cells along with zinc. And thus acts as the method that forms the body's and each cell's 'pool' of zinc on the outer layer of all cell-membranes;4) very few vegetarians live beyond 100 years {D'Adamo}, and 5) there are no records of any society that has existed as vegetarian for several subsequent

    John McDonell

    1. Dear John,

      I respectfully disagree that I have mad ANY errors in my statement concerning D'Adamo's "Eat Right 4 Your Type" book... as a matter of fact, it is right here in my bookcase. I have reviewed his chapter on "type A" blood types (p.96), and as a type "A", I have been vegetarian three times with poor health the result, ALL THREE TIMES ! Concerning the Inuit being mostly type A, blood typing for the Inuit was 54% O, 36% A, 23% B, and 8% AB (RACIAL & ETHNIC DISTRIBUTION of ABO BLOOD TYPES, 2008)...
      Your remarks that "very few vegetarians live beyond one-hundred years of age", and "there is no record of a society that has existed as vegetarian" are neither factually correct, (the Hunza exist on a 98% plant-based diet, and have been around for thousands of years), nor relevant to my argument against being vegetarian. In all likelihood, a lack of carnosine (nature’s most potent anti-glycating agent) in the vegetarian diet may contribute to a shortened lifespan. Humans are "adaptable", particularly those that survive in harsh environments. As for taurine (2-aminoethanesulfonic acid), I think you mean "essential amino acid" (EAA), and taurine is neither an essential amino acid, nor a "conditionally" essential.amino acid, it is however an organic acid, found primarily in animal flesh and eggs, and is a major constituent of human bile primarily as sodium taurocholate. Cholesterol CAN be metabolized to taurocholic acid (taurocholate) by the liver. Taurine can be made in your body from two other amino acids: cysteine and methionine. Taurine promotes cardiovascular health, insulin sensitivity, electrolyte balance, hearing function, and immune modulation. In animal research, taurine protected against heart failure, reducing mortality by nearly 80%. Its benefits are so broad and extensive that scientists have described taurine as “a wonder molecule"...
      And last, but not least, you may find the following article on zinc and cell proliferation of interest.... http://jn.nutrition.org/content/130/5/1500S.full