Carbohydrate foods are rice, pasta, bread, noodles, potatoes, sweets, and sugar-sweetened beverages, but also include all grains such as sweet potatoes, corn, and peas, as well as yogurt, milk, fruits, vegetables, nuts, and a variety of legumes. Carbohydrate foods are foods that contain carbohydrates, one of the nutrients humans need. Most carbohydrates occur naturally in plant foods, such as cereals.