Pentadecanoic Acid
Pentadecanoic acid, or C15:0, is an odd-chain saturated fatty acid found in small amounts in dairy fat and some fish and plants.
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
What is pentadecanoic acid?
Pentadecanoic acid, or C15:0, is an odd-chain saturated fatty acid found in small amounts in dairy fat and some fish and plants. Laboratory and animal work has explored effects on inflammation and mitochondrial function, the machinery that helps cells produce energy. 1
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Does a high C15:0 blood level prove protection from diabetes?
No. The cohort evidence shows an association, not proof that raising the level prevents disease. 2
Is the essential-fatty-acid claim settled?
The cited paper presents it as a hypothesis requiring further research. 1
Does dairy intake affect the blood marker?
Yes. A controlled crossover study found higher C15:0 in cholesteryl esters after a dairy-rich diet. 3
Does flavoring approval establish supplement safety?
No. JECFA’s conclusion refers to current exposure as a flavoring agent. 4
Palmitic Acid
Docosapentaenoic acid