To gain weight you need to increase your daily food intake with good nutrition protein and carbohydrates are the key nutrients in weight gaining and achieving a toned look a good daily diet is important and should be supplemented at least 3 times per day with a nutritious drink between meals the extra protein and carbohydrate not fat and refined sugar will enable your body to gain weight healthily weight gain is ideal for those with a fast metabolism or lean physique who find it difficul