Nethra Vijayakumar Healthy eating According to WHO , Health is a state of physical, mental and social well-being in which disease and infirmity are absent. The key to a healthy diet is to eat right amount of calories and drink enough amount of water. If you eat or drink more than the daily requirements, the individuals may gain weight as the energy which is not used is stored as fat in the adipose tissue, which is located beneath the skin. If you drink too little, you might lose weight. The three macronutrients are carbohydrate (carbs), fats and peotein, which are needed in relatively large amounts. They provide calories and have various functions in your body. Here are some common foods within each macronutrient group: Carbohydrate: Provides 4 calories per gram. All starchy foods like potatoes, bread. Also includes fruits, legumes, juices, sugar and some dairy products. Protein: Provides 4 calories per gram. Pulses, legumes, egg, dairy, meat and fish. Fat: Provides 9 calories pe