Protein

The subject of complete proteins and complementary proteins was introduced in Chapter 5. Because this subject is so important for vegetarian diets, it is discussed in greater detail here.

The major nutritional concern of a vegetarian diet is getting enough protein. Dairy products, eggs, and fish supply adequate amounts of good-quality protein, but vegans must plan their diet carefully to get adequate protein. Some plant products, such as grains, nuts, and dried beans, contain proteins. In the traditional food guide pyramid, dried beans and nuts are included in the meat group. However, with the important exception of soybeans and soy products such as tofu, most of these protein foods, when eaten alone, are not adequate for human nutrition.