HUMAN NUTRITION

Detailed explanation-1: -Most adults need a minimum of 2000 calories to sustain metabolism, muscle activity, and brain function. However, too many calories can lead to weight gain and a variety of diseases.

Detailed explanation-2: -On average, a person requires 1500 to 2000 calories for normal daily activity, although routine exercise will increase that amount. If you ingest more than that, the remainder is stored for later use. Conversely, if you ingest less than that, the energy stores in your body will be depleted.

Detailed explanation-3: -Uncle Sam, the Chef In the United States, the 2, 000 calories-a-day-number originates from what is known as the 1968 Recommended Daily Allowances. This benchmark was established as a guideline so consumers could be aware of the proper balance of nutrients required for healthy living regardless of age and sex.