Why do kcal requirements tend to diminish after the age of 25?

Answer 1

There are several reasons why kcal requirements tend to diminish after the age of 25:

1. Metabolism slows down: As we age, our metabolism starts to slow down, meaning that our bodies burn calories at a slower rate. This can lead to a decrease in kcal requirements.

2. Muscle mass decreases: As we age, we tend to lose muscle mass due to a decrease in physical activity and changes in hormone levels. Muscle tissue is more metabolically active than fat tissue, so having less muscle can lead to a decrease in kcal requirements.

3. Decreased activity levels: As people get older, they tend to become less active. This can lead to a decrease in kcal requirements, as fewer calories are needed to fuel the body's activities.

4. Changes in hormonal levels: Hormonal changes that occur as we age can also affect our kcal requirements. For example, a decrease in estrogen levels in women after menopause can lead to a decrease in kcal requirements.

Overall, a combination of these factors can contribute to a decrease in kcal requirements after the age of 25. It is important to adjust your kcal intake and physical activity levels as you age to maintain a healthy weight and overall health.