Why is it difficult to lose weight by simply eating fewer kcalories?

Question

Quizplus · Accepted Answer

When the body receives fewer calories than it requires, it responds by reducing the basal metabolic rate (BMR) to conserve energy. This means that the body burns fewer calories at rest, making it more difficult to lose weight. Additionally, the body may also reduce its muscle mass, which further lowers the BMR. Therefore, simply eating fewer calories may not be enough to lose weight, as the body can fight back against this reduction in calorie intake. A combination of dietary changes and regular exercise is often necessary to achieve sustainable weight loss.

Why Is It Difficult to Lose Weight by Simply Eating