In the blood type diet, what does Type O represent?

In the context of the blood type diet, Type O is associated with certain dietary recommendations that emphasize a protein-rich diet primarily consisting of meats, fish, and vegetables while suggesting avoidance of grains. This option is grounded in the belief that individuals with Type O blood, often referred to as the "hunter" type, have physiological traits that are more in line with a prehistoric diet that focused less on carbohydrates and more on animal proteins. Therefore, the recommendation is to minimize or eliminate grains, which are considered not as well-suited for this blood type.

Type O is not characterized as the most modern blood type, nor is it considered predominantly vegetarian or tolerant of dairy products. These traits do not align with the foundational principles of the blood type diet, which suggests specific foods that are more compatible or incompatible with the body's physiology based on blood type. This understanding highlights why the focus is on avoiding grains for Type O individuals, as the diet aims to optimize health by aligning food choices with ancestral eating patterns.