What is C15:0 fatty acid (found in fatty15), and does it have health benefits?

Answer:

C15:0 fatty acid, also called pentadecanoic acid and found in the supplement fatty15, is a saturated fatty acid naturally present in dairy fat, ruminant meats (e.g., beef, bison, and lamb), and some fish and plants (Venn-Watson, PLoS One 2022). C15:0 fatty acid in fatty15 (which suggests taking one 100-mg capsule daily) is promoted for "healthier hair & skin, balanced metabolism, and deeper sleep," as well as "slowing the aging process" and "optimizing red blood cell production," but there are no clinical studies to support these uses.

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