Sarcopenia is the progressive loss of muscle mass, strength, and function. It becomes more common with age but is not an inevitable part of aging, and there are effective ways to slow or even partially reverse it.
Common causes and risk factors:
- Aging, especially after age 50.
- Physical inactivity or prolonged bed rest.
- Inadequate protein or calorie intake.
- Chronic illnesses such as diabetes, heart disease, or kidney disease.
- Hormonal changes.
- Chronic inflammation.
- Certain medications or excessive alcohol use.
Signs and symptoms:
- Loss of muscle strength (often noticed before muscle size decreases).
- Difficulty climbing stairs or getting up from a chair.
- Slower walking speed.
- Poor balance and more frequent falls.
- Reduced endurance.
Evidence-based solutions:
- Resistance (strength) training 2–3 times per week is the most effective intervention. Exercises such as squats, leg presses, rows, push-ups, and weight training help build and maintain muscle.
- Adequate protein intake. Many older adults benefit from spreading protein evenly across meals. Individual needs vary depending on age, health, and activity level.
- Regular physical activity, including balance and aerobic exercise.
- Address underlying medical conditions that may contribute to muscle loss.
- Ensure adequate intake of nutrients such as vitamin D if deficient, under the guidance of a healthcare professional.
If someone notices rapid or unexplained muscle loss, significant weakness, or difficulty with everyday activities, it’s important to seek medical evaluation. A clinician can determine whether sarcopenia or another condition is responsible and recommend appropriate treatment.
Despite what some advertisements claim, there is no single food, supplement, or “miracle cure” that reverses sarcopenia. Consistent strength training, good nutrition, and treatment of underlying health issues have the strongest scientific support.
