People with different blood types have great differences in digestion and absorption functions. People with type O blood don't like to drink milk because they are born with insufficient digestion ability for dairy products. Generally speaking, the more you like, the less you should eat, and the more you don't like, the more you should eat. What should people with type O blood eat? For people with type O blood, animal protein is their main energy source, but people with type O blood are not easy to digest dairy products, beans and cereals, so don't eat a lot. People with type O blood should drink less dairy products, but take calcium tablets to supplement calcium every day. We should also pay attention to the intake of vegetables, fruits and other foods in order to maintain the acid-base balance in the body. People with type O blood had better avoid eating rice. Eating kiwi fruit before going to bed can effectively supplement vitamin C and help people with type O blood digest protein.