The difference between white lentils and white kidney beans is mainly: white lentils are a kind of traditional Chinese medicine, which has the function of treating diseases; while white kidney beans are a kind of food, which can provide nutrients for the human body, and can’t be used to treat diseases. 1. White lentil: has the effect of tonifying the spleen and stopping diarrhea, eliminating heat and dampness, and detoxification. It is mainly used for treating spleen deficiency and diarrhea (diarrhea caused by weak spleen function), dampness with diarrhea, summer-dampness vomiting and diarrhea, wine poisoning and stomach injury or fish and crab poisoning. Yin cold internal bloomers should not be used. 2. White kidney beans: also called kidney beans, is a relatively common food. White kidney beans contain carotene, vitamin C, niacin, thiamin, calcium, potassium, phosphorus and other nutrients, which can supplement the nutrients needed by the body. If you need to use white lentils, you must use them under the guidance of a medical professional.