Tesamorelin increases muscle area and density, especially in core muscles like abs and spinal extensors, while reducing fat infiltration inside the muscle, which is important for metabolic health.
Evidence from Studies
Supporting (2)
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The Growth Hormone Releasing Hormone Analogue, Tesamorelin, Decreases Muscle Fat and Increases Muscle Area in Adults with HIV
This study shows that Tesamorelin helps improve muscle quality and quantity in people with HIV, which supports the claim.
Randomized Clinical Trial of High Intensity Exercise in People with HIV: Effects on Muscle Composition and Inflammation.
This study shows that exercise can help improve muscle in people with HIV, which supports the idea that Tesamorelin, as a treatment, could have similar effects.
Contradicting (2)
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Tesamorelin improves fat quality independent of changes in fat quantity
This study only looked at whether tesamorelin makes fat healthier, not whether it makes muscles bigger or stronger — so it doesn’t support the claim about muscle changes.
The effects of tesamorelin on phosphocreatine recovery in obese subjects with reduced GH.
This study found that tesamorelin helped muscles use energy better, but it didn’t measure whether the muscles got bigger, denser, or had less fat inside them—as the claim says.