Why is maintaining lean mass important?

Maintaining lean mass is crucial for several reasons:

1. Metabolic Health: Lean mass, especially muscle, is metabolically active tissue. It helps maintain resting metabolic rate and assists in blood glucose control and insulin sensitivity, which are important for preventing metabolic diseases like diabetes and cardiovascular issues 1 2 3.

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     Maintaining Lean Mass

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2. Longevity: Research has consistently shown that lean mass is correlated with longevity. Higher lean mass, grip strength, and muscle strength are associated with increased lifespan and reduced mortality rates, particularly in older adults 1 4.

3. Physical Function and Independence: Muscle mass is essential for maintaining physical function, such as balance, posture, and the ability to perform daily activities. This is especially important as we age to prevent falls and maintain independence 4 1 2.

4. Weight Management: Maintaining lean mass during weight loss can help prevent weight regain. Studies suggest that losing muscle mass during dieting may predict a greater risk of regaining weight, as lean mass plays a key role in regulating energy expenditure and appetite 1 3.

5. Hormonal Balance: Muscle mass influences hormonal functions and can help in the maintenance of healthy hormone levels, which in turn, impacts overall health and well-being 3 4.

In summary, lean mass is vital for metabolic health, longevity, physical function, weight management, and hormonal balance. Maintaining or increasing lean mass through proper nutrition and resistance training is essential for overall health.