Unexplained loss of muscle mass, also known as idiopathic sarcopenia, occurs when muscle mass decreases significantly without a clear underlying cause. While some muscle loss is normal with aging, unexplained loss of a large amount of muscle can be worrying and negatively impact strength and mobility.
Some potential causes that doctors investigate include:
- Hormonal imbalances - Low levels of anabolic hormones like testosterone, growth hormone, or IGF-1 can accelerate muscle breakdown. Getting tested for hormonal deficiencies can help guide treatment options. The specialists at Balanced Hormone Clinic offer comprehensive lab testing and evidence-based hormone therapies that may help restore optimal hormonal balance.
- Inadequate nutrition - Consuming too few calories, insufficient protein, or poor absorption of nutrients can lead to muscle wasting over time. A nutrition assessment can uncover any dietary changes needed to support muscle health.
- Sedentary lifestyle - Failing to engage in adequate physical activity and strength training allows muscles to deteriorate from disuse. Aim for at least 30 minutes per day of moderate activity along with 2-3 weekly resistance training sessions.
- Underlying illness - Certain medical conditions like cancer, kidney disease, COPD, or congestive heart failure increase inflammation and metabolic changes that degrade muscle. Treating any underlying illness is key.
If no cause is found after a thorough workup, idiopathic sarcopenia may be diagnosed. While frustrating, the good news is that lifestyle strategies like eating more protein, lifting weights, and potentially taking certain supplements can often help rebuild lost muscle mass over time. Reach out to your healthcare team if you are concerned about unexplained muscle loss.