HUMAN NUTRITION

Detailed explanation-1: -A positive energy balance, in which energy intake exceeds expenditure causes weight gain, with 60–80 % of the resulting weight gain being attributable to body fat. In negative energy balance, when energy expenditure exceeds intake, the resulting loss in body mass is also accounted for by 60–80 % body fat.

Detailed explanation-2: -Weight loss occurs when you create a negative energy balance. That is, you burn more calories than you consume. When this imbalance occurs, your body burns stored energy (fat) in order to function and you lose weight. 7 A negative energy balance is sometimes called a calorie deficit.

Detailed explanation-3: -For long-term success, focus on consuming a healthy diet and getting regular physical activity consistently. Make sure your exercise routine includes strength training. This will help you build and maintain muscle, especially as you age.

Detailed explanation-4: -In biology, the state at which the number of calories eaten equals the number of calories used. Energy balance is affected by physical activity, body size, amount of body fat and muscle, and genetics.