We all know we need nutrients like carbohydrates fats vitamins and iron to lead a healthy lifestyle but how do we know the right quantity. Annapurna Agrawal a nutritionist at Snap Fitness India recommends a list of nutrients that are required by our body and also suggests the exact amount one should eat per day. Carbohydrate How much to consume per day: 40-60% of your total calories Carbs or carbohydrates are found in various food items like potatoes banana jackfruits bread cereals sugar etc. They perform important functions like storing energy and other functions in the immune system blood clotting