6

votes

Are lectin reactions blood type specific?

Answered on August 19, 2014
Created August 08, 2012 at 5:53 PM

http://www.owenfoundation.com/Health_Science/Lectins_in_Foods.html

I know the blood type diet has been debunked by a lot of knowledgeable people, but personally a lot of the foods they say to avoid for my blood type give me noticeable reactions so I was thinking it has to have some merit.

0bc6cbb653cdc5e82400f6da920f11eb

(19245)

on August 09, 2012
at 08:10 AM

If you recommend a variety of different diets for different people at random some of those people will find what is recommended suits them perfectly.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on August 08, 2012
at 11:05 PM

Yeah. Type O is almost totally paleo. So, it doesn't surprise me that it's the most tolerated one.

7841848bd0c27c64353c583fb7971242

(7275)

on August 08, 2012
at 10:42 PM

I'll comment just to balance out the "blood type diet is right for me" folks: I'm a type A, and a vegetarian diet did not work well for me. I'm much happier with a lot of meat in my diet.

742ff8ba4ff55e84593ede14ac1c3cab

(3536)

on August 08, 2012
at 10:22 PM

Thanks for the studies. I agree there needs to be more research, although many think it is quackery.

F5a0ddffcf9ef5beca864050f090a790

(15515)

on August 08, 2012
at 07:31 PM

I don't know much about the blood type diet except for this: http://www.dietpromises.com/blood-type-diet LET ME TELL YOU - IT IS TOTALLY WRONG FOR ME. A complete scam. Nothing but a scam.

742ff8ba4ff55e84593ede14ac1c3cab

(3536)

on August 08, 2012
at 07:14 PM

Same here, type 0. Every food they say to avoid gives me problems. There has to be something to it.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on August 08, 2012
at 07:12 PM

I'm also a type O nonsecretor, and it works astonishingly well.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on August 08, 2012
at 07:01 PM

Same Canis Minor. Type-O nonsecretor. And yeah, works astonishingly well.

0382fa263de4c83328dc34a56e25437f

(4238)

on August 08, 2012
at 06:55 PM

And for me. I haven't said so here, until now, because some small part of me still cares about getting downvoted. I'm an O nonsecretor and the food list for that is actually more harmonious for me personally than what many people here call a paleo diet.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on August 08, 2012
at 06:45 PM

Rob, I am the same way. Coincidence or not, the blood type diet is spot on for me.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on August 08, 2012
at 06:44 PM

Rob, I am the same way. I know it has been discredited by many intelligible people, but coincidence or not, but the list is dead on with foods I can and cannot eat.

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2 Answers

4
A2c38be4c54c91a15071f82f14cac0b3

(12682)

on August 08, 2012
at 06:39 PM

I think this is a really interesting question.

In the book Genome, Matt Ridley writes about how blood types seem to affect susceptibility to different pathogens. He claims that type O people are more susceptible to cholera and less susceptible to malaria, while those with AB are less susceptible to cholera. In fact, the variability in response to a number of bacteria and viruses may be be affected by blood type. See this study for more on that.

If blood type actually affects our response to bacteria, why couldn't it have at least a small effect on our responses to potential food antigens (e.g. specific lectins and proteins)? I'm open to the possibility that the risk of specific food intolerances might be affected by blood type.

Edit:

In 1945 William Boyd apparently found that lima beans contained lectins that were blood type A specific hamagglutinins. I found this study that confirmed this finding. So far, this is the only common food I've found with potential blood type specific lectin activity. There just doesn't seem to be much research on this subject.

742ff8ba4ff55e84593ede14ac1c3cab

(3536)

on August 08, 2012
at 10:22 PM

Thanks for the studies. I agree there needs to be more research, although many think it is quackery.

1
32f5749fa6cf7adbeb0b0b031ba82b46

(41747)

on August 08, 2012
at 11:03 PM

Peanut Agglutinin Lectin loves to bind to galactose. It's a positive control you often see in in vitro studies dealing with carbohydrate/protein interactions. It binds terminal galactose residues, which blood types B and AB have. Whether than means anything is another question. I'm not going to google that for you.

For what it's worth, it also binds lactose.

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