Back to top

The Blood Type Diet®

Blood types


The blood type diet

In order to understand the blood type diet, it is important to acknowledge ancestry. 

According to Dr. Peter J. D’Adamo, different blood types originate from different stages of human development. This explains how certain foods react in different metabolic environments with each blood type.


Blood type O represent the first man, the hunter-gatherer. They are very dynamic and lead active lifestyles, thrive on a diet high on animal protein and dark leafy greens for most. Type O have high levels of enzymes in their stomachs, allowing them to break down tough foods like red meat. They do not process carbs easily and simple carbs like grains are often turned into fat and cholesterol.  


Blood type A emerged when large populations escaped drastic climate changes for favorable living conditions, settling in a continental “European” region. Resourceful migrants, type A have more sensitive bodies in comparison to their vigorous type O cousins. Type A are named the first farmers, and thrive broadly on a pescatarian diet, some poultry and lots of vegetables.


Blood type B is the most geographically concentrated. It may have emerged in the Himalayan highlands and developed amongst Mongolian tribes. Stretched to the East, today type B is found in condensed numbers around India, Mongolia, China and Japan. Blood type B are adaptable to changeable environments. This flexibility translates into a dietary balance welcoming a carnivorous as well as a vegetarian diet. 


Blood type AB is the rarest, and only 1200 years young! Type AB did not emerge in reaction to its environment, rather it is the result of intermingling between blood types A and B and therefore share characteristics of these two types. On a metabolic level, this means that blood type AB inherited the sensitive type A stomach, delivering low stomach acid but is balanced by the type B flexibility.

Why it matters

Different people, different ways.
Different blood types, different foods.


Since each blood type developed individually, each blood type group digests and processes foods differently. Bananas, for example, may not suit everyone.


On the Blood Type Diet®, there are 3 categories of foods: 
Beneficial, acting like medicine.
Neutral, simply nutritious.
Avoid, that can harm your metabolism on the long term.


Each food sensitivity will also vary if the blood type is a secretor or not (see below for more information on the secretor status).



Your secretor status

Did you know that your blood type isn’t only identified in your blood?
Your blood type antigen can be found in any fluid secreted in your body like your sweat, mucus or even in your saliva!
But some people do not release their blood type antigen in their body fluids.

The people who do are called “secretors”. The people who don’t are called “non-secretors”.

So what? As you may know, there are 3 categories of foods on the blood type diet: beneficial, neutral and avoid. Whether you are a secretor or not, it will affect the way your body processes certain foods. For example, whole grain wheat is neutral for blood type A secretor but it is to avoid for blood type A non-secretor.

Want to find out about your secretor status? If you want to get the full benefits of the blood type diet and identify if you are a secretor or not, reach out to

Note that all of the recipes listed on this website are suitable for secretors.

Back to top
Balance & Reconnect
Sign up to delicious and happy recipes straight to your inbox!