The Blood Type Diet is based on a theory presented by naturopathic physician Peter D’Adamo, who claims that food proteins called lectins are digested differently by people with different blood types. According to D’Adamo’s theory, people gain or lose weight more easily by choosing foods according to their blood type. The theory further says that the Rh factor of blood does not make much difference when it comes to deciding the diet for a certain blood type, but people with O Negative blood group require a little more protein (lectin) as compared to their counterparts with O-positive blood group. He further says that people with O negative group should consume less grain and avoid potential mould carriers.

Peter D’Adamo’s diet plan is based on the types of foods our forefathers have been consuming for centuries. Following the diet designed for you on the basis of your blood type can help improve your health, ward off diseases and maintain a healthy weight.

Foods to Eat

Blood group O negative is the oldest blood type according to D’Adamo. The Blood Type Diet recommends that people with Oblood group should consume foods that are high in protein and low in carbohydrates, such as red meat, white meat and seafood. These people can also include a moderate amount of certain fruits, vegetables, nuts and seeds to their daily diet. An ideal meal for a person with O negative blood group will include roasted beef or lamb, broccoli salad and fresh fruits, followed by a cup of herbal tea. If you are not a great fan of broccoli, try including spinach in your salad.

Foods to Avoid

The Blood Type Diet also has a list of foods that the people with O negative blood type should avoid. These include dairy products and grains. D’Adamo claims that consumption of wheat products can make these people gain weight. Gluten present in lentils, corn, kidney beans and cabbage can also make them gain weight, but at a lesser rate as compared to wheat products. He further says that consumption of foods such as grains and potatoes can cause inflammation in the joints of people with blood type O negative, making them more susceptible to arthritis.

Best Exercises

Besides diet, exercise also plays key role in health and fitness. According to D’Adamo, people with O negative blood type do best when they engage themselves in physical activities such as daily workouts, running, biking and contact sports.