01/28/2026
L-Carnitine is a naturally occurring amino-acid–like compound your body uses to turn fat into energy. It’s stored mostly in your muscles and is popular as a supplement for fat loss, energy, and workout performance.
What it does
• Fat metabolism: Helps transport fatty acids into your cells’ mitochondria to be burned for energy
• Energy & endurance: May reduce fatigue during workouts
• Recovery: Can help with muscle soreness and recovery
• Brain & heart support: Plays a role in cognitive and cardiovascular health
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