how much l-carnitine should a runner take – The Endurance Enhancer – RunStrong From 5k to Ultramarathon: 8
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Frequently Asked Questions Acetyl-L-Carnitine (ALCAR) supports energy metabolism, muscle recovery, and overall health in horses

Given the specificity and affinity provided by the cation interaction, it has been hypothesized that glycine betaine and carnitine-sensitive transcription factors utilize a functionally similar binding site (Bremer, 2011)

In addition, Shao et al

The compound is particularly popular among those maintaining consistent, high-intensity training schedules year-round
