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Description
L-carnitine (LC) is a biologically active form of carnitine, a non-essential amino acid derivative and a fatty acid metabolism cofactor [17,18]

Today, they both exist as very popular supplements

doi: 10.1007/s40261-016-0454-3
Effects of L-carnitine supplementation on physical performance and energy metabolism of endurance-trained athletes: A double-blind crossover field study
Ultimately, a keto diet isnt detrimental to thyroid health, like many believe

F.Castro, et al
