I came across this article that talks about blood type and diet. Based on the research conducted by Peter D'Adamo , ND, who claims that people fare better (including with weight management) when tailoring their diet to their specific blood types. The following are his advices;
Type A types should basically stick to fruits and vegetables (high carbs / low fat).
They have thicker blood than other blood types, a sensitive immune system,
and should not consume dairy products, animal fats and meats. They are at
a heightened risk for cardiovascular disease, diabetes and cancer.
Type B types should consume a balanced diet (fruits and vegetables, grains, fish, dairy, meat,
but avoid chicken). They have the best chance of bypassing or overcoming
everyday types of diseases, including heart disease and cancer.
Type AB types should consume a mostly vegetarian diet, and only on rare occasions some
fish, meat (no chicken), and dairy.
Type O types should basically stick to a high protein diet (including red meat), low carbs, and
enriched with fruits and vegetables. They should limit the intake of wheat germ,
whole wheat products, corn, and avoid dairy products and most nuts. Type O types are commonly affected with hypothyroidism, high stomach acid (leading to ulcers), and thinner blood with greater resistance to blood clotting.
I have a Type A blood and I think this information is very helpful. I should be more careful with the foods I ate and be consuming more on fruits and vegetables.