L-Carnitine May Enhance Endurance Capacity Studies have shown that L-Carnitine can enhance endurance capacity, by improving oxygen uptake and reducing the build up of lactic acid

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The blood pressure-lowering effect appears to be driven primarily by weight loss (patients in the STEP trials lost 10-15% of body weight), though improvements in insulin sensitivity and vascular function may also contribute
Arch Dermatol 139:767770 Anavi Y, Mintz S (1992) Unusual physiologic melanin pigmentation of the tongue
Hansen, A
On December 22, 2025, Novo Nordisk announced that the U.S