l carnitine pvcs L-Carnitine Veg Capsules | NOW Foods LCarnitine 250mg Coenzyme Q10 100mg

Br J Urol 1984

This "metabolic buffering" role helps maintain the CoA/acyl-CoA ratio essential for TCA cycle function [1]

The nuance is that the body synthesizes carnitine and most people have adequate baseline carnitine levels from dietary intake (primarily from red meat) the supplemental benefit is most pronounced in vegetarians and vegans (who have significantly lower dietary carnitine intake), older adults (whose carnitine synthesis declines with age), athletes in high-volume training (who deplete carnitine more rapidly), and anyone in a caloric deficit where fatty acid oxidation demand is elevated relative to carnitine availability.

doi: 10.1039/D4FO06011C 116