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And theres some evidence that this can support muscle development, improve libido and fat metabolism, and help regulate blood sugar levels, according to Dr

Fatigue can stem from many causes, including sleep disturbances, stress, other vitamin deficiencies, or underlying health conditions

In tendon-related discussions, users commonly mention Achilles tendon pain, tennis elbow, rotator cuff irritation, and overuse injuries

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Data availability All data are available in the main text or the Supplementary Materials

Smokers, people over 65 or those on chronic corticosteroids such as spironolactone require longer to see collagen gains