is l carnitine effective for fat loss Carnitine: the claims and why it may not work The bright and the dark

Deferasirox targeting ferroptosis synergistically ameliorates myocardial ischemia reperfusion injury in conjunction with cyclosporine A

So taking it in a multivitamin is best, unless you have been diagnosed with a deficiency

A number of studies have shown that L-carnitine supplementation can improve endurance in athletes

PLoS One 2013;8: e70215

Some other medications can lead to low levels of vitamin B12 in your body

Impaired gut barrier function: Gluten or dairy sensitivity can lead to increased intestinal permeability or "leaky gut," which may impair the release of DAO into the intestinal lumen where it is needed to break down histamine