What is the estimated percentage of muscle mass lost per decade, after the age of thirty?

The estimated percentage of muscle mass lost per decade after the age of thirty is typically around 3-8%. This reflects a natural process known as sarcopenia, which is the age-related loss of muscle mass, strength, and function. Starting in the third decade of life, individuals experience a gradual decline in muscle tissue due to a combination of factors such as hormonal changes, decreased physical activity, and changes in nutrition.

Research indicates that, without active intervention, individuals may lose approximately 3-8% of their muscle mass per decade, highlighting the importance of maintaining a physically active lifestyle that includes resistance training and proper nutrition to mitigate these losses. This range corresponds with various studies that have consistently shown that muscle mass reduction accelerates as one ages, particularly after reaching the age of 60.