He who does not know food, how can he know the disease of man?

Whole foods plant based diet consists of greens, fruits, vegetable, whole grains, legumes, beans, and lentils. It does not include any animal based products, including fish and daily products. It excludes refined sugars, flour, and oils. 

The standard American dies is rich in red meat, dairy products, processed and artificially sweetened foods, and salt, with minimal intake of fruits, vegetables, fish, legumes, and whole  grains.