Category: On The Diet
I have read two of the eat right books, and cannot find if psyllium fiber is an avoid or neutral for group O. Can I take psyllium fiber as in metamucil? How about the orange flavoring? Thanks, S.
Psyllium isn't recommended as a regular fiber supplement for type O. Ground flaxseed stirred into water or juice is a better choice. If you prefer an over-the-counter product, Peter has noted that "Citrucel," while not perfect, is an acceptable alternative to psyllium-based blends like Metamucil.
I'm a type O negative. Can I eat oatmeal? I don't understand the difference between nonsecretor and secretor. How can I tell which I am? Also. lots of conflicting information in all the D'Adamo books about pinto beans for type O. Most of the information says beneficial, but some says avoid. What is correct? ~ Mary Ann
Oatmeal is neutral for Os, unless: you wish to lose weight, suffer from inflammatory conditions, or you're a nonsecretor. In these situations, it should be avoided. Pinto beans, in the later round of research, turned out the other way: avoid for secretor Os, neutral for nonsecretor Os. Take a look at our update log for more info on the reasons for the changes. And the secretor/nonsecretor info page will tell you all about the differences between the two!
I'm new to the diet, Type O. I've notice some discrepancies among the food lists in the different books. For example, barley and oatmeal is neutral in one book, and avoid in another. Which is correct? -- Mary Beth
The food lists have changed somewhat, due to improved testing methods and additional research. The latest books have the correct values. Live Right 4 Your Type, the Encyclopedia and TYPEbase3® contain the secretor/nonsecretor-differentiated analysis of foods, while the Food Reference and Supplement Lists have an Eat Right-style design for those who don't plan on learning their secretor status.
I have purchased your books and would like to try out the O-Type Diet, as I can see that a lot of the foods you have on the Avoid list for type O actually cause quite a bit of problems with me. As I have to make some changes and want to substitute with items available here in South Africa where I live, I wanted to know if the following items are Beneficial,Neutral or Avoid on the Type O Diet: - Rooibos Tea (also known as Red Bush Tea) it is herbal and caffeine free and the drink of choice here in South Africa - Ostrich Meat, also very popular and widely available here, very lean red meat. I would appreciate your advise. Many thanks -- Silvana (Johannesburg, South Africa)
Rooibos Tea is fine for all types. Here's more on Rooibos. Ostrich is listed in the later books (Live Right and the Encyclopedia) and in TYPEbase3®. It is Neutral for everyone ... except me. (That is to say, I'm an O nonsecretor, for whom it is Beneficial. :->)
What about chicken liver for type o's? -- Melinda
Os make shopping at the butcher's a breeze. All you have to remember is what you can't have, which ain't much. The only three avoids in the meat/poultry list for type O secretors are . The status of organ meats follows the status of the animal from which it comes. Enjoy your chicken liver!
I'm a 'B' and in the list I can have white flour Does this mean all porpose flour?
Hi, Heather! Read the label of the flour you plan to purchase. If it has no additives, then it's fine. The average type B allowance in Live Right 4 Your Type is around 5-7 cups of dry grain or pasta per week, which includes any baked goods (bread or bagels or muffins, etc.) you might have. In other words, try to keep it to around one serving per day, and don't forget yer beneficial meats, fish, vegetables and dairy! ("OK, Mom!!" ;-))
I'm interested in using various products containing xylitol; however, the main sources of commercially produced xylitol are corn cobs and birch bark. As a B, I'm supposed to avoid corn so I'm assuming that I should avoid xylitol. Am I correct in my assumption?
Hello, Elvi! I don't have solid evidence as to whether the troublesome lectin in corn survives the chemical processing involved in making xylitol, a "sugar alcohol." It's highly unlikely.
However, browsing around the Net, I came across a fact sheet on industrial production and handling of this substance, and thought I would pass it on to you for your evaluation. It has some interesting reading on the hazards involved. Not sure what to make of it: what do you think? It's on the Kaddesh Company site. They are Korean pharmaceutical/chemical manufacturers and traders.
The more important concern with xylitol is that roughly 50% of people who use it experience extreme intestinal gas. So be careful!
I drink a lot of green tea and have recently added rooibos tea from South Africa to my diet after learning that it provides lots of antioxidants (many more times the green tea quantity). I am a Type B secretor. Can you validate the usefulness of this product for antioxidants and let me know if there is any adverse 'B' reaction? Thanks.
Hi, Patrick! Rooibos ("redbush," "rotbush" (don't be alarmed: in German, "rot" means "red"!)) tea appears to confer a number of health benefits. Its combination of oligosaccharides, flavanoids and superoxide dismutase (SOD) enzyme activity pack a powerful antioxidant effect in a tasty package. I would only note in passing that if you have naturally very low blood pressure, it might lower it yet more. If it causes dizziness, try to limit or discontinue it. At present, it has no known ABO bioactivity ~~ so... Enjoy!
Thanks to all you type B nomads for stopping in!! :-D
Dear Heidi, I would love to see an explanation on how secretor status is inherited. Is it similar to the ABO system (but presumably simpler)? Thank you, Rose in Hungary
Yes, secretor status is determined by two genes, just like ABO type. Each parent donates one of those genes to the child.
The two genes which determine secretor status are written "Se" (secretor) and "se" (nonsecretor). The important thing to remember is that "Se" is dominant to "se," just as type A and B are dominant to type O.
So, there are three possible combinations, or genotypes: SeSe, Sese, and sese. The first genotype is a secretor who has only secretor genes to pass on. The second is a secretor who carries a recessive nonsecretor gene. The third is a nonsecretor.
It's quite clear that a mating of SeSe + SeSe = child SeSe, a secretor. That's the only possible outcome, since each parent has only secretor genes to give.
By the same mechanism, sese + sese will always produce child sese, a nonsecretor.
The wild cards come into play with the combinations Sese + sese and Sese + Sese.
In the first, everything depends upon which gene the secretor parent donates to the child. If it is the Se gene, the child is a secretor... if it is the se gene, the child will be a nonsecretor. It's a toss-up.
In the second, Mom and Dad are both unsuspecting secretors with one recessive nonsecretor gene each. Just for fun, let's give them four kids. :-> Statistically, we expect their children to be: SeSe, Sese, Sese, and sese, not necessarily in that order. My man Bryan's parents happen to be in this situation. They are both secretors, as are their two younger children. Bryan, however, is a nonsecretor. Surprise! :-D
Rhesus type heredity follows the same pattern: two genes, with Rh+ dominant to Rh-. "Rh+" folks may be ++, or +- (one of each). "Rh-" always means --. As in the Nonsecretor Surprise, two "Rh+" parents may be scratching their heads upon the arrival of an "Rh-" little one... like a type A and B couple looking askance at each other on the birth of their type O baby. Knowing how blood type genetics works can circumvent loads of potential intrafamilial trouble! :-}
It's just another interesting thing about having kids: you learn things about yourself you might never have suspected -- biochemistry, too. :-D