University of Illinois . Extension Service in Agriculture and Home Economics, Let's Use Soybeans
“ Soybeans also have a high caloric value due to fat content and have a higher energy value per pound than the other more commonly used legumes, with the exception of peanuts.Soybean products are sometimes called "diabetic foods" because they contain no starch. It should be remembered, however, that soybeans contain some soluble sugars; in all about 10 per cent or more of the weight of dry soybeans is carbohydrate which the body can utilize. Even so, this is much less than the carbohydrate content of other beans and of wheat flour. ”
