Carnitine
Supplement
A popular supplement purported to increase the oxidation of fatty acids, though the data supporting this effect is not robust.
Mentioned in 3 videos
Videos Mentioning Carnitine

2020's Most Notable Research (with guests Eric Helms and Mike Zourdos) - Episode 51
Stronger By Science
A supplement reviewed in a meta-analysis where recalculations showed different, often non-significant, results from the original publication.

Dr. Martin Gibala: The Science of Vigorous Exercise — From VO2 Max to Time Efficiency of HIIT
FoundMyFitness
A popular supplement purported to increase the oxidation of fatty acids, though the data supporting this effect is not robust.

224 ‒ Dietary protein: amount needed, ideal timing, quality, and more | Don Layman, Ph.D.
Peter Attia MD
A molecule involved in fatty acid metabolism, partly formed from lysine.