Should you eat food as per your blood group?
Clinical Nutrition • • 1 minute to read • By Dr Aakash Bansal, INFS Faculty
Author- Dr. Aakash Bansal
In 1996, a naturopathic physician, Dr. Peter D’Adamo published a book, Eat Right 4 Your Type in which he strongly recommended that everyone should eat a diet as per their blood type. This diet type became famous at that time and still, multiple proponents of this diet claim the efficacy of linking diet strategy to a particular blood type.
As per Dr. Peter, an appropriate diet for any individual depends upon his ABO blood type because each blood type represents the genetic lineage of our ancestors and thus the type of diet they had consumed to thrive. He gave the following recommendations for each blood type,
|TYPE A||TYPE B||TYPE AB||TYPE O|
|Agrarian or Cultivator||Nomad||Enigma||Hunter|
|Eat a diet rich in Plants||Eat plants and most of the meat except chicken and poultryConsume dairy in moderation||Eat seafood, tofu, dairy, beans, grains||A high protein diet mainly meat, fish, poultry, certain fruits, and vegetables|
|Avoid red meat||Avoid wheat, corn, lentils, tomatoes||Avoid kidney beans, corn, beef, chicken||Avoid legumes, grains, and dairy|
|NO PROCESSED FOOD|
Few theorists have proposed a link between blood type and the proteins called lectins that are present in food. As per them, lectins are the family of proteins that can bind sugar molecules and act as antinutrients by having a negative effect on the lining of the gut.
As per blood type theory, certain lectins in the diet specifically target different ABO blood types differently and lead to adhesion of red blood cells in case of a mismatch between lectin and blood type. This can cause nausea, vomiting, upset stomach, diarrhea, flatulence, and bloating. Lectins can also bind to the inner layer of the digestive tract and disrupt the breakdown and absorption of nutrients, and affect the growth and action of intestinal flora.
But there is very limited research to prove the unique interaction between the lectins and blood type. Some studies have shown that the majority of agglutinating lectins react with all ABO blood types. Also, lectins are majorly present in the food when it is in a raw state and lectin-containing foods are not typically eaten raw like legumes. Cooking with wet-high heat methods or soaking in water for hours generally inactivates most lectins.
Many individuals claim to have benefited from the blood type diet strategy and there is no doubt about the efficacy of this diet or the results, but does that mean there is a direct relation between the blood group type and diet?
If we break down the diet types proposed for every blood type, it shows us the intake of balanced meals high in protein and whole foods with minimal or no intake of processed foods, thus cutting down on the calories in people’s diets. That is the biggest reason for this diet type to work.
Multiple studies have also been done in this field to find a unique link between blood type and diet but none of the studies have shown any health effects of ABO blood types diets.
Thus, the results which people claim are because of healthy lifestyle choices and conscious eating habits and not because of any relation between the blood type, lectins, and diet as claimed.
- Boston, 677 H.A. and Ma 02115 +1495-1000 (2019). Lectins. [online] The Nutrition Source.
- Cusack, L., De Buck, E., Compernolle, V. and Vandekerckhove, P. (2013). Blood type diets lack supporting evidence: a systematic review. The American Journal of Clinical Nutrition, [online] 98(1), pp.99–104.
- Wang, J., García-Bailo, B., Nielsen, D.E. and El-Sohemy, A. (2014). ABO Genotype, ‘Blood-Type’ Diet and Cardiometabolic Risk Factors. PLoS ONE, [online] 9(1), p.e84749.
The plan that has transformed 300,000+ lives and counting!
- Customized diet & workout plans
- Access to a full suite of smart tracking tools
- Join the world’s largest online fitness community
- Customer Satisfaction score of 95.5%
- Coaching in your local language for clear guidance
Get results or get your money back!