is l'carnitine safe L-Carnitine Benefits, Sources, and Side Effects L-CARNITINE increases muscle mass, reduces
Description
A lot of people combine L-carnitine with structured nutrition plans or complementary supplements

doi: 10.1053/ajkd.1998.v32.pm9708610

Sum CF, Winocour PH, Agius L, and et al

P., Xiao, J

Anyone considering taking L-carnitine should talk with their doctor to discuss any medications they are taking and the possible drug interactions

So, while 500 mg might work perfectly for one person, someone else might need 1,000 mg or more to see noticeable changes
