A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilized to prevent bias in research results.
Total Dietary Fiber. Kidney beans contain more total dietary fiber per serving than the seven other most commonly consumed legumes in the United States, including black-eyed peas, chickpeas, lentils and black, navy, pinto and lima beans.
Pinto beans -- like all other beans besides soy beans -- have a high concentration of many of the amino acids your body needs in order to synthesize vital protein-based compounds, such as tryptophan, isoleucine, valine and histidine, but they do not have enough of the other amino acids to supply your body's total protein needs.