Hello, Nan! ~ some good news for you: Live Right’s type O section shows red wine as Neutral for secretors and Beneficial for nonsecretors. This more recent book is all about the differences between the two secretor states, and their impact upon diet and lifestyle. Additionally, recent research accounts for some updates in food status. Thanks for writing!!

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I have read your first book (1996) in French and your second book (2002) in English. Can you kindly clear up some discrepancies? I am bloodgroup AB. 1. Trout is considered beneficial in the first book, and to be avoided in the second. 2. Pepper and vinegar "too acid" in the first book, not recommended. A few pages later balsamique, cidre, red wine vinegar is said to be neutral, white and black pepper "whole" to be avoided - what about red and green pepper, and "crushed"? (I love pepper, vinegar - and coffee...) 3. Your first book recommends as "very beneficial" one or two cups of light coffee per day which is good for AB's low stomach acid. Your second book states "avoid coffee". Has new research shown a different result? Type setting error? 4. The "standard menu" for losing weight in the first book says "some parmesan cheese on your salad" - why? if parmesan is to be avoided for bloodgroup AB?? Thank you for enlightening me. Angela

Greetings, Angela ~~ The seven-year span between the two books represents significant research and testing/retesting of various food items. Second, the Live Right book uses secretor status to further refine the lists, while the more recent individual Food & Supplement Lists were written to accommodate those who do not plan to learn their secretor status. The most recent food lists are in Live Right with the modifications noted on the Updates Page (also linked in the "Library" section on the front page of this site.

Any color of peppercorn (the spice) falls under the listing for "peppercorn." If you are looking for the vegetable "pepper," it is included in the vegetables category of the food lists -- not the spices. The rating for coffee is correct in Live Right, and I suspect the parmesan was intended as a "tiny treat." :-D

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Hi! I am following my bloodtype diet faithfully and have seen dramatic results in my health and condition. I am an O secretor with chronic sinus problems including nose polyps. According to the diet, bananas are beneficial for a secretor, yet I have been told to stay away from bananas as they produce mucous. Should I use them as beneficial or keep well away? Thank you for your time. Anna

Hi, Anna ~~ The bottom line here is: DO bananas produce mucus for You? If you find they do, feel free not to eat them. They are not a vital part of the type O diet. If you find they do not, you've got your answer! :-) Just avoid them for a week or two, then eat a couple and monitor what happens within an hour or two. I wouldn't be surprised if eliminating avoid grains and dairy entirely will clear up your sinus problems in pretty short order. Keep me advised on your progress!!

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I have some questions about milk for O's. I know it's forbidden, but I wondered about products like lactaid? Also, since a little butter is allowed, what about creme? And isn't yogurt already digested? Why would Romano be allowed, but not Parmesan? Thanks. Ann

Hello, Ann ~ "Lactaid" (the enzyme lactase) addresses the lactose (milk sugar) issue by breaking down lactose into glucose and galactose. Most Os and As lose the ability to produce lactase in early childhood (4 to 5 years of age). Why would we adults want to eat the enzyme in order to rinse ourselves with type B sugar (galactose!?!) :-} Additionally, lactase won't do anything about the proteins (caseins & whey) from the milk, which we cannot fully digest. Butter goes through a process of separation of the milk FAT from the proteins. Even better is ghee, in which all one has left is the butyrate, a wonderful thing for the digestion and a perfectly buttery-tasting food. Yogurt? Fermentation uses up the sugars, once again, not the proteins. And why is romano OK, but parmesano is not? Good question! Where did you see that romano is OK? I can't seem to find that listing in any of my books.... Do let me know where you found it! :-)

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Whew!! Thanks once again, everyone!!