18+ · Research Use Only · Not for Human Consumption
Research answer
What is MOTS-c studied for?
MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA, studied in mice and cells for insulin resistance, diet-induced obesity, physical decline with age and autoimmune diabetes. As of 23 September 2026, no published study has given MOTS-c to people, so every finding below is from animals or cells.
Primara Labs sells some of the compounds covered here. Every figure on this page links to its source and the date it was checked.
Updated 23 September 2026
01
How it is thought to act
MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA. In mouse and cell studies it acts mainly on skeletal muscle, where it inhibits the folate cycle and linked purine synthesis, which activates the energy sensor AMPK. In people, exercise raises the body's own MOTS-c levels; it has not been given to people in a published study.
02
What the mouse studies found
In mice, MOTS-c prevented insulin resistance linked to age and a high-fat diet, and prevented diet-induced obesity.
In mice, MOTS-c treatment started late in life increased physical capacity.
In non-obese diabetic mice, MOTS-c reduced the development of high blood sugar and immune-cell infiltration of pancreatic islets.
03
Human data
No human adverse event data are published; the Research Desk's Europe PMC search on 23 September 2026 found none. The US FDA states it has not identified any human exposure data on products containing MOTS-c by any route. The evidence level is animal and cell.
Studies that measure the body's own MOTS-c in blood, for example after exercise, are observational; they do not show what giving it does.
04
The papers behind it
Animal and cell studies only.
Cell Metab 2015: In mice, MOTS-c prevented insulin resistance linked to age and a high-fat diet, and prevented diet-induced obesity.
Nat Commun 2021: In mice, MOTS-c treatment started late in life increased physical capacity.
Cell Rep 2021: In non-obese diabetic mice, MOTS-c reduced high blood sugar and immune-cell infiltration of pancreatic islets.
05
What the evidence can and cannot say
Because every result above comes from mice or cells, none of it establishes an effect in people, and the size of any effect in a person is unknown.
Sources
Where every figure comes from
- MOTS-c mechanism source · checked 23 September 2026
- Cell Metab 2015 · checked 23 September 2026
- Nat Commun 2021 · checked 23 September 2026
- Europe PMC search, MOTS-c · checked 23 September 2026
Last reviewed 23 September 2026