L Carnitine: Benefits & Supplementation Integrated Mobile Health How to Take L Carnitine Liquid: Complete Guide The Science of Good Health Can I Take Berberine and Semaglutide Together? If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a If you're putting in the work but the scale isn't moving, your body might just need a little help tapping into its fat stores. That's where L Carnitine comes in. It's not a L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy.