Protein types: Protein types are fast oxidizers or parasympathetic dominant. They tend to be frequently hungry, crave fatty, salty foods, fail with low calorie diets and tend towards fatigue, anxiety, and nervousness. 

Protein types requires a diet that is rich in oils and high purine proteins such as organic meats, beef and seafood including salmon, tuna, herring and mussels. Protein types can also eat fats such as eggs, whole milk, creams and organic cheese. 

Carbohydrate intake should be low with a focus on complex carbohydrates (whole grains, vegetables) over simplex ones (sugary, starchy foods). 

These types should aim for a macronutrient balance of 40% protein, 30% fats and 30% carbohydrates at each meal. 

Carbo types: Carbo types are slow oxidizers or sympathetic dominant. They generally have relatively weak appetites, a high tolerance for sweets, problems with weight management, and “type A” personalities. They are often dependent on caffeine.

These types need a diet that is high in carbohydrates and low in protein, fats and oils. They should eat low purine proteins such as turkey, chicken, fish like haddock, perch, sole and flounder. 

Carbohydrate types should stick with low fat dairy products and eat lots of vegetables, fruits and whole grains. They need to avoid the refined carbohydrates. Their ideal macronutrient balance is 60% carbs and about 20% of both fats and protein.

Mixed types: Mixed types are neither fast nor slow oxidizers and are neither parasympathetic or sympathetic dominant. They generally have average appetites, cravings for sweets and starchy foods, relatively little trouble with weight control, and tend towards fatigue, anxiety, and nervousness. 

Mixed types should eat a mixed diet, one that is a mixture of high-fat, high-purine proteins and low-fat, low-purine proteins such as eggs, yogurt, tofu and nuts. This type requires relatively equal ratios of proteins, fats, and carbohydrates.