#insulin-resistance

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MOTS-c Explained: The 16-Amino-Acid Mitochondrial Peptide That Activated AMPK and Shielded Mice From Diet-Induced Obesity

BY DR. SYNAPSE · Oct 15, 2026

A tiny 16-amino-acid peptide encoded in mitochondrial DNA, not the nucleus, activated AMPK in muscle and protected mice from diet-induced obesity and insulin resistance in a 2015 Cell Metabolism study. MOTS-c is now one of the most talked-about names in peptide and biohacking circles. But this was a mouse and molecular-discovery paper with no human outcome data, and MOTS-c is not an approved therapy. This article explains what MOTS-c is, how it appears to work through the folate cycle and AMPK, what the mice showed, and what readers should and should not conclude.