White kidney beans and red kidney beans have some differences in appearance, nutritional value, efficacy, taboos and consumption methods.

1. The shape of white kidney beans is oblong or oval, while red kidney beans have a lentil-like shape.

2. The nutritional value of white kidney beans and red kidney beans is also different. White kidney beans are rich in nutrients such as protein, carbohydrates, dietary fiber, vitamins, calcium and iron. Red kidney beans also contain similar nutrients, including protein, carbohydrates, dietary fiber, vitamins, and calcium.

3. White kidney beans and red kidney beans also have different effects. White kidney beans can promote gastrointestinal motility, facilitate the digestion and absorption of food, and have the effect of strengthening the spleen and stomach. Red kidney beans have the functions of supplementing blood and qi, strengthening the spleen and removing dampness, and reducing swelling.

4. White kidney beans are not suitable for patients with indigestion, because they may increase the burden on the gastrointestinal tract and worsen the condition. There are no obvious contraindications for red kidney beans, but if the patient is allergic to red kidney beans, it is not recommended to eat them to avoid allergic reactions, which may lead to itching, redness and swelling of the skin and other uncomfortable symptoms.

5. The eating methods of white kidney beans and red kidney beans are also different. White kidney beans can be cooked into porridge, stir-fry, or ground into soy milk for drinking. Red kidney beans can generally be stir-fried, stewed with ribs or braised, or can be stewed with other ingredients.