l carnitine l tartrate or acetyl Old School Labs 4-in-1 Liquid L-Carnitine 3000 Plus for Energy & Metabolism Buy Acetyl L-Carnitine 800mg Capsules

And it can certainly be indicated for those who have a deficiency in their own production of carnitine and are vegetarians

If either is present, do not use the liquid

Although there was a decrease in the median (IQR) of GI symptoms score in the patients on KD with L-carnitine supplementation in comparison to KD only group indicating clinical improvement in GI symptoms, and an increase in the median (IQR) of the Bristol stool scale indicating that the stool was softer, these results didnt reach statistical significance

Endima L-Carnitine 360 is a dietary supplement tablets with L-Carnitine, zinc and sweeteners

given third prize (erroneously, in my view, but it's probably a bit late to say that now)