Kidney beans are a good source of fiber, potassium, and magnesium, which all contribute to heart health. Fiber helps to lower cholesterol levels, potassium helps to regulate blood pressure, and magnesium helps to relax blood vessels.

Kidney beans are a low-glycemic index food, which means that they do not cause a rapid spike in blood sugar levels. This makes them a good choice for people with diabetes or prediabetes.