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.
1 Beans, peas and lentils are excellent sources of fiber. 2  Add kidney beans to canned soup or a green salad. 3  Or make nachos with refried black beans, lots of fresh veggies, whole-wheat tortilla chips and salsa. 4  Eat more fruit and vegetables. 5  Fruits and vegetables are rich in fiber, as well as vitamins and minerals.