What is Carnitine?
L-carnitine, a compound present in almost all cells in the body, helps in the process of metabolizing fatty acids into energy. L-carnitine is chemically similar to an amino acid, and is manufactured in the liver and kidneys from the amino acids L-lysine and L-methionine. L-carnitine is naturally occurring in many animal source foods and a few plant source foods such as avocado.

Health Benefits
Because L-carnitine is primarily manufactured in the liver and kidneys, supplementation of the compound in those with liver or kidney disease may be necessary due to impaired L-carnitine synthesis.

Studies are being conducted on the benefit of acetyl-L-carnitine (produced in the brain) to those with Alzheimer’s disease. These studies are promising, but more research is needed.

There is conflicting research as to the benefit of L-carnitine on exercise performance and obesity. Most promising is the advantage L-carnitine may provide to endurance athletes. More research is needed.

Usage Indications
Use as directed. Dosages vary; general recommended dosage is 500-1000mg, 2-3 times per day. Supplement can be taken with or without food.
L-carnitine is available in capsule, liquid, and tablet form.

Amino acids are often given a prefix of L- or D-. Choose L-carnitine, as it is most similar to the compound produced in the body.

Side effects: May cause mild gastrointestinal discomfort. In rare cases, L-carnitine may cause seizures in those with no pre-existing seizure disorder. In those with a preexisting seizure disorder, L-carnitine may increase the frequency and/or the severity of seizures. Consult your physician. An unusually high dose of L-carnitine may cause an undesirable body odor.
Indications: It is not recommended that those who are pregnant/nursing take L-carnitine supplements, as safety has not been proven.

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