l-carnitine l-tartrate webmd Tartrate which helps support the bodys natural functions L-Carnitine Side Effects & Safety:

A few other things that the researchers mentioned: avoiding protein supplements that contain anabolic steroids, as they identified that as a specific contributing factor

In addition, androgens promote lipolysis and glucose uptake by upregulating the expression of key enzymes and proteins involved in glucose and lipid metabolism, such as ATGL and GLUT4, to alleviate glycolipotoxicity, thus eventually achieving a protective effect on the structural integrity and function of the electron transfer chain ( Figure 2 )

Contrary to previous findings, a study by Dastan et al

If this is true, sipping it in your coffee is better than taking a large dose of a supplement