Since your calorie intake is less, it is natural for the body to feel tired. Therefore, it is recommended to drink plenty of water to moisturize the body. Water also fills you, so you eat less at the next meal.Losing weight is not just the number of calories you eat, but also the amount you spend. Therefore, the best and healthiest diet programs are those that combine food with exercise. Exercise besides promoting general health also helps you to maintain weight loss in the long term.