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L-carnitine can sometimes cause stomach problems, such as feeling sick, vomiting, loose stools or just an upset stomach, especially if you take it in too high amounts or take it all the time without food

You can get a certain amount of L-carnitine from your diet, as it's found in foods such as red meat typically the redder the meat, the better

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Supplementation does not seem to increase muscle carnitine in almost all situations

Consult your doctor before use

The number of leg press repetitions and the leg press third set lifting volume increased in the LC group compared to the placebo group [43]