Eating for your blood type? Does this help for UC? Anyone heard of this?

     Huh?

It's supposed to be that certain blood types should be eating a specific diet. i.e..

type o's should be eating lean, chemical-free meats, poultry and fish, that dairy products and grains not user friendly. supposed to have hardy disgestive systems.
type a's - prone to fragile digestive systems, cannot tolerate animal protein well and should be the classic vegetarians.
type b's - have tolerant digestive systems and also tolerate most foods well, can handle dairy products also.
type ab's - very rare blood type, foods of type a & b's are bad for ab's, type ab's do not produce enough hydrochloric stomach acid to digest animal protein, suggestion is to take bromelain, enzyme from pineapple to assist with digestion

Just wondered. it almost falls in the same category as living UC more prevalent on the 49th parallel and northern parts of the world?

I've been reading about the eat-for-your-blood-type diet. Not only is the "scientific" data wrong, but the layman part doesn't make sense.

For instance, according to the "theory," blood group O is believed to have evolved during the time of the hunter, A during the time of the farmer, B during the time of the nomad, and AB, the most recently evolved type, is an intermediate between blood types A and B.

However...

My mom is AB- and I'm B+. According to the "theory," my ancestors were only nomads while my mom's were nomads and farmers. Hmm...

No wonder my body is so confused seeing since I am AB- with Rh - ! Actually this has been discussed in the past, you can do a search and see how others responded.