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In some people, particularly older adults or those with limited protein intake, both glycine and cysteine availability may constrain glutathione synthesis

Ethics declarations Competing interests E.M

Funding Statement This study has been supported by the grant BWS21J001

Research documents a 70% increase in collagen production in treated women compared to controls, outperforming both vitamin C and retinoic acid in comparative trials

However, the result fell short of the roughly 25.5% weight loss reported for tirzepatide , a leading therapy developed by Eli Lilly

All of this is to say, menopausal weight gain is about more than how you look or numbers on the scale