With their deep red color, cooked red kidney beans can liven up a wide range of meals including salads, soups and stews. But did you know that these little legumes can do much more than just that? Packed with protein, soluble (and insoluble) fiber, folate (vitamin B9), magnesium, potassium and a number of other health promoting nutrients, red kidney beans haricots rouges , red beans, in French are a true superfood and it should be well cooked to avoid toxicity