l-carnitine + cla Cutler Nutrition Liquid Fat Burner Supplement with Acetyl L-Carnitine & L-Carnitine Tartrate - Fat Burner Formula for Optimal Absorption, Energy & Muscle Support A Guide to L-Carnitine on
Description
Acetyl l-carnitine in particular is most commonly used for this purpose

Diabetes Care 43(5):940-7 2020 PMC7171946 Mather KJ, Bebu I, Baker C, Cohen RM, Crandall JP, DeSouza C, Green JB, Kirkman MS, Krause-Steinrauf H, Larkin M, Pettus J, Seaquist ER, Soliman EZ, Schroeder EB, Wexler DJ, Pop-Busui R, GRADE Research Group

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Wang D, Hu B, Hu C, Zhu F, Liu X, Zhang J, et al
