L-Carnitine Strong is a dietary supplement in capsules containing 1060 mg of L-carnitine per daily serving. This formula is perfect as a daily dietary supplement for physically active individuals or those who practice sports professionally. What is L-carnitine? L -carnitine is an organic chemical compound synthesized in the body from two amino acids – lysine and methionine. L-carnitine was first isolated from muscle (Latin: caro, carnis ), hence its name. L-carnitine is water-soluble, so excess is eliminated from the body through the kidneys. L-carnitine can also be supplied to the body through a well-balanced diet. Meat and dairy products are particularly valuable sources of L-carnitine. It is present in beef, pork, lamb, and fish, among others. Another way to supplement L-carnitine in your diet is through the SFD dietary supplement. The package contains 120 capsules, which is enough for one person for 60 days of daily supplementation.