HUMAN NUTRITION

Detailed explanation-1: -The total number of calories a person needs each day varies depending on a number of factors, including the person’s age, sex, height, weight, and level of physical activity. In addition, a need to lose, maintain, or gain weight and other factors affect how many calories should be consumed.

Detailed explanation-2: -Older adults generally have lower calorie needs, but similar or even increased nutrient needs compared to younger adults. This is often due to less physical activity, changes in metabolism, or age-related loss of bone and muscle mass.

Detailed explanation-3: -As you get older, the number of calories needed is usually less than when you were younger. This is because basic body processes require less energy when there is a decline in physical activity and loss of muscles. However, contrary to popular belief, basic nutrient needs do not decrease with age.