Your blood group holds a lot of information. It can guide you on what your diet should look like. Unlike a lot of other one-size-fits-all diets, the blood type diet is personalized based on your blood group. It was most prominently advocated by Peter J. D’Adamo, a naturopath.
There are four main blood groups – A, B, AB and O – and these are classified depending on the inheritance of genes from one’s parents. Dr Anand Mishra, Internal Medicine Specialist, Hiranandani Hospital, Mumbai, points out that each blood type is determined by the presence and absence of antibodies, as well as inherited antigenic substances. Depending on the blood group, these antigens may be present in the form of proteins, carbohydrates, glycoproteins or glycolipids.
A protein called lectin reacts with our blood and can have varied impact on the body, depending on our blood group. While these effects are not life-threatening, they can trigger a few health issues. The immune system is efficient enough to protect us from the adverse effects of lectins within a specific blood group, but choosing a diet suitable for our blood group can be helpful.
One needs to determine his/her blood group and they can consult a dietician to follow a diet design as per their blood group. Rasika Parab, HOD, Nutrition Therapy, Fortis Hospital, Mumbai, gives you an overview of the blood type diet:
BLOOD GROUP O
People with this blood group are found to have higher secretions of stomach acids (alkaline phosphatase and lipoprotein apob48). Due to this, they are vulnerable to gastric ulcers and digestive problems. They are also predisposed to thyroid disorders. Following a diet which is mind on spices, rich in antioxidants and probiotics is recommended. The diet should include plenty of fruits, vegetables, milk and milk products and proteins like chicken, eggs, and fish.
Must avoid: Excessive caffeine and chocolate. Alcohol consumption should also be avoided.
BLOOD GROUP A
People belonging to this group are highly susceptible to diabetes and obesity. They have lower levels of stomach acid (hydrochloric acid), which helps in digestion and metabolization of food. It has been seen that people with A-blood group have a sensitive immune system. A good amount of fish, legumes, pulses, fruits, and vegetables is advised.
Must avoid: Meat and dairy products in moderate amounts is recommended. Anything high in fats and carbohydrates should be avoided.
BLOOD GROUP B
People with this blood group have higher than normal levels of Cortisol (a hormone released during stress), which can lead to autoimmune diseases, obesity, diabetes and inflammatory diseases. Fewer carbohydrates and fat, and high consumption of protein is recommended. Egg whites and chicken can be included in the diet. Vitamin and mineral boosters such as fruits and veggies become an integral part of the diet.
Must avoid: Shellfish like crabs and prawns, and beef should be avoided. Alcohol consumption is harmful.
BLOOD GROUP AB
This blood group too will have low levels of stomach acids and hence they are prone to digestive issues. The diet should be designed to include tofu, low-fat dairy products and lots of fresh fruits and vegetables. Eating small and frequent meals are recommended for this blood group people.
Must avoid: Meats, fatty, and spicy food which take a longer time to digest. Bakery products should be consumed in moderation.