kidneys l carnitine inositol choline bitartrate l-carnitine: Nutrition, pathology, and health benefits Research Breakdown on L-Carnitine -
Description
In a randomized, placebo-controlled study of 495 patients with intermittent claudication, 2 g/day of propionyl-L-carnitine for 12 months significantly increased maximal walking distance and the distance walked prior to the onset of claudication in patients whose initial maximal walking distance was less than 250 meters (m), but no effect was seen in patients who had an initial maximal walking distance greater than 250 m (65)

Mol Asp Med

doi: 10.6061/clinics/2013(sup01)08 [DOI] [PMC free article] [PubMed] [Google Scholar] 106

However, certain limitations in the studies call for careful interpretation
