Onions are a healthy food that adds their unique flavor to a wide variety of foods. With only 60 calories per serving, onions are sodium, fat, saturated fat, and cholesterol free, and provide dietary fiber, vitamin C, vitamin B6, potassium,
and other key nutrients. In addition, onions
contain a variety of other naturally occurring chemicals known as organosulfur compounds
that have been linked to lowering blood
pressure and cholesterol levels.