Weight may not have changed, but increased difficulty carrying items, standing up, climbing stairs, or walking could signal muscle decline.

Cutting calories, protein, carbohydrates, or fasting can lead to energy deficiency and muscle mass reduction.

Aging, underlying health conditions, inactivity, and a lack of other nutrients such as: carbohydrates, fats, and magnesium can lead to muscle loss, even when protein intake is sufficient.

A diet rich in quality protein, sufficient calcium, and vitamin D can help slow down age-related muscle loss.