The main dietary source of carbohydrates is plant-based foods. Carbohydrates are an essential macronutrient and are primarily found in foods such as grains (like rice, wheat, and oats), legumes (like beans and lentils), fruits, vegetables, and dairy products. These foods are typically rich in starch, sugars, and fiber, contributing energy to the diet. Whole grains and fiber-rich fruits and vegetables are highly recommended as they provide additional health benefits, such as improved digestion and reduced risk of chronic diseases. Incorporating a variety of carbohydrate sources is important for optimal nutrition and energy levels.