Legumes are one of the most beneficial food sources available to diabetics. Legumes are high in fiber, low in carbohydrates, and have a moderate to low glycemic index rating. This means they contain complex carbohydrates that take longer to digest, and are less likely to raise blood sugar levels. Legumes also provide important vitamins and minerals, as well as protein. Eating legumes as part of a balanced diet can help to stabilize blood glucose levels, improving overall health and helping to prevent long-term complications of diabetes.