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With 20.9% average weight loss, Tirzepatide closes the gap but still falls short of Retatrutides efficacy

Carnitine supplementation has been shown to increase testosterone in some people but not others, suggesting an unreliable effect

For example, individuals with certain deficiencies or chronic conditions may experience more pronounced effects, while others may find the injections less impactful

Another human study found the same result, which is that L-carnitine supplementation reduces insulin resistance and improves insulin sensitivity

However, some studies demonstrated no increase in prevalence of colorectal cancer in patients or individuals with constipation (17)

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