Blood type diet: Does it work?

Some research suggests that people who have certain blood types may develop specific patterns of food allergies. However, there's no scientific evidence to support the so-called "blood type diet," in which different diets are recommended based on a person's blood type. At this time, eating or avoiding certain foods according to your blood type isn't thought to have any favorable influence on weight or overall health. In fact, a "blood type diet" may not meet your nutritional needs.