Dear Cheryl and Lynne,
The re-forwarded Nadeau's comments make an interesting reading. While I would certainly agree with her that D'Adamo's thesis of the relationship between our food and the blood-group of the individual is at best premature, at worst misleading, some of her assertions are even less based on experimental evidence than his. I am afraid, both of them are rather amateurish. On top I have a feeling that Dr Nadeau because of her rather limited English does not always say what she intends to say. I am afraid it is just not true that the peanut study has not been confirmed, but it is true that it has not been correlated with any blood group types.
What we keep coming back to is that some lectins are definitely toxic, such as the kidney bean lectin but whether it has any relationship to human blood groups is highly questionable. My guess is that it is not, judging from the mass poisonings in Berlin after the second world war or in Bosnia more recently by the emergency rations dropped from the air by the Americans and UN Agencies. It is highly unlikely that the victims belonged to one particular blood group type.
No, as I said before and assert it again, in some animals with less complex glycosyl expression patterns we can make predictions about the effect of certain foodstuffs when we have a reasonable glycosyl map in their alimentary tract but in humans it requires a very brave man (or a fool) to make similar predictions. We have some empirical observations and can speculate about these but not much more at present. Certainly, Dr Henry's paper is not a great help.
Best wishes for your studies
* Below we have included some links to some mass "poisonings" due to lectins in uncooked beans. Please note, these poisonings affect everyone, not just one ABO blood group type. This is the obvious example that Dr. Arpad Pusztai is referring to in the letter above.
From the Food Reference Website: RED KIDNEY BEAN POISONING
from the U.S. Food & Drug Administration Center for Food Safety & Applied Nutrition:
Foodborne Pathogenic Microorganisms and Natural Toxins Handbook:
Kidney Bean Lectin: Phytohaemagglutinin
Here’s an article on a bunch of students getting it, in China, last October:
Students, Court Employees Sickened by Food Poisoning
And the followup article to that:
Food poisoning sickens 160 company staff
Another one in Korea.
China: Kidney beans sicken 90 workers in Korean joint venture in Tianjin