l-carnitine dietary sources Source Naturals Capsules 250mg, 120 ct L Carnitine For Weight Loss
Description
For example, studies show improvements in running speed, increased maximal oxygen uptake, and decreases in average oxygen consumption, heart rate, and lactic acid

Acetyl-L-carnitine in HIV-associated antiretroviral toxic neuropathy

This could potentially help in avoiding fatigue during exercise, muscle weakness, chemotherapy-induced neuropathy, and hyperlipoproteinemia

The antioxidant properties of L-carnitine are associated with its function in mitochondrial fatty acid transport, which prevents the accumulation of free fatty acids in the cytosol
doi: 10.1093/humrep/16.11.2338