Sweet potatoes contain rich antioxidant beta carotene. Beta carotene is converted to vitamin A, helping to slow the aging process and reduce some cancer risks. Sweet potatoes also have plenty fiber, vitamins B-6, C and E, folate and potassium. Sweet potatoes are fat-free, and they contain less calories.
Red beans contain iron, magnesium, potassium, phosphorus, copper, thiamin and phytonutrients. Their protein and fiber are low-fat and low-calorie. Phytonutrients, also known as plant compounds, can often help prevent cardiovascular diseases and other chronic diseases. Red beans often have two types - small red beans and dark red kidney beans.