What Is MOTS-c?
MOTS-c is a 16-amino-acid mitochondrial-derived peptide encoded within the mitochondrial 12S rRNA region that acts as a metabolic regulator, activating AMPK and shifting cells toward glucose handling and stress resistance. It is studied for insulin sensitivity, obesity, and exercise/mitochondrial biology, and is often framed as an “exercise mimetic.” It is a research peptide, not an approved dietary supplement, and the strongest evidence to date is preclinical.
Evidence
The foundational work reported that MOTS-c promotes metabolic homeostasis, activates AMPK, and reduces diet-induced obesity and insulin resistance — a combination of cell and mouse experiments 1Reference 1In vitroThe Mitochondrial-Derived Peptide MOTS-c Promotes Metabolic Homeostasis and Reduces Obesity and Insulin Resistance — mouse / in vitroView study →. In humans, the clearest verified finding is mechanistic rather than therapeutic: an acute bout of exercise raised skeletal-muscle and circulating MOTS-c in healthy young men, consistent with an exercise-responsive signalling role. The popular claims that supplemental MOTS-c improves metabolism, fitness, or longevity in people are not supported by a completed, verified human efficacy trial in this quick pass — the animal data are encouraging but have not been replicated in controlled human trials.
Dosage & Safety
MOTS-c is a research peptide — not an approved dietary supplement or medicine, and there is no established human dose. Any protocols in circulation are informational only, not personal recommendations. Human safety, interactions, and use in pregnancy are not established and were not assessed in this pass.
References
- Lee C, Zeng J, Drew BG, et al. (2015). The Mitochondrial-Derived Peptide MOTS-c Promotes Metabolic Homeostasis and Reduces Obesity and Insulin Resistance — mouse / in vitro. Cell Metabolism. https://pubmed.ncbi.nlm.nih.gov/25738459/