Info on L-Carnitine

What is L-carnitine? It is very similar to the nonessential amino acid carnitine. L-carnitine is the cheapest form of carnitine available and is also believed to be the safest type. It performs some of the same functions, such as helping metabolize food into energy. L-carnitine is synthesized in the body from the amino acids lysine and methionine. L-Carnitine is available as a high quality supplement from natural and synthetic sources. It is also found in avocados, dairy products, and red meats (especially lamb and beef).

L-carnitine transfers long-chain fatty acids, such as triglycerides into mitochondria (a cell's energy powerhouse), where they may be oxidized to produce energy. L-carnitine is a very popular supplement that promotes growth and development. It is also used for fat-burning, increasing energy, and improving resistance to muscle fatigue. L-carnitine also helps to build muscle. It is also great in dieting, as it reduces feelings of hunger and weakness.

There are a variety of published studies that suggest L-carnitine is useful in increasing the heart's output and improving it's functioning, as well as stimulating the heart's energy supply and supporting cardiac performance. Anyone deficient in protein or amino acids in their diet could benefit from L-carnitine supplementation. Pre-mature infants, vegan vegetarians, children, and breast-feeding women are likely to be deficient.

Although deficiencies are rare, muscle fatigue, cramps, or pre-mature aging are all signs of possible deficiency.

How much should be taken? Are there any side effects?

Between two and four grams of L-carnitine should be taken one hour before exercise, for two weeks. Then a 7 day rest period is required before taking L-carnitine again.

Local products such as Del Monte Fit 'n Right contains 300 mg of L-carnitine per serving (330 ml bottle), which means 7 servings will equal to a serving of 2.1 grams to show visible results in 6 weeks, combined with proper diet and exercise. Their Grapefruit and Blueberry flavored drinks are the ones with the fewest calories at 70 per 330 ml serving. I also recommend VitWater Kiwi Strawberry as a lower calorie alternative.

Taking L-carnitine is very safe, although the DL form of carnitine may be toxic and is not recommended. I would recommend a dosage of 1 to 1.2 grams daily for optimum results and for maintenance purposes.