L-CARNITINE and its properties in the body

Properties of L-CARNITINE “TILEX”
Improved physical performance

The results of the clinical trials conducted to date are inconclusive.
Current data indicate that a dose of 2 g of L-carnitine per day, divided into 1 to 3 doses, does not appear to pose a health risk38.
Description of carnitine


The body synthesizes the carnitine it needs from lysine and methionine, two amino acids found in food. This process also requires the presence of vitamin C, iron, vitamin B6 and vitamin B3 (niacin) and several enzymes. Carnitine plays a key role in the transport of long-chain fatty acids into mitochondria (components of the body’s cells). This process, in the mitochondria, allows the production of energy in the form of adenosine triphosphate (ATP). Carnitine is therefore essential for the proper functioning of the muscles, including the heart, a muscle that is constantly under stress and therefore continually in need of “fuel”.

In the body, carnitine is mainly synthesized by the liver and kidneys. That of commerce is synthesized in the laboratory and sold as a dietary supplement in the form of L-carnitine and acetyl-L-carnitine (in capsules, tablets, powder for diluting, etc.). L-carnitine is water-soluble while acetyl-L-carnitine is fat-soluble (fat-soluble).

Food sources of carnitine
The body synthesizes the carnitine it needs from food. The best sources are meat, especially red, and, to a lesser degree, dairy products, avocado and tempeh (a fermented soybean product). In modern societies, dietary intake of carnitine is estimated to be between 20mg and 200mg per day, which is much lower than the doses administered in clinical trials. However, carnitine of food origin is much better absorbed (75%) than that in the form of supplement (from 5% to 18%).

Carnitine deficiency
Carnitine deficiency is relatively rare. It can be caused by the use of certain drugs (valproic acid, antiepileptics, and reverse transcriptase inhibitors such as AZT, for example) or by prolonged dialysis treatments.

It can also be due to certain genetic diseases or metabolic dysfunction that interferes with the normal synthesis of this substance in the body.

Premature infants who are intubated may be at risk for carnitine deficiency. It is manifested by muscle weakness, increased fatiguability and cardiac arrhythmia.
Improved physical performance

The results of the clinical trials conducted to date are inconclusive.
Current data indicate that a dose of 2 g of L-carnitine per day, divided into 1 to 3 doses, does not appear to present a health hazard.
Description of carnitine
The body synthesizes the carnitine it needs from lysine and methionine, two amino acids found in food. This process also requires the presence of vitamin C, iron, vitamin B6 and vitamin B3 (niacin) and several enzymes. Carnitine plays a key role in the transport of long-chain fatty acids into mitochondria (components of the body’s cells). This process, in the mitochondria, allows the production of energy in the form of adenosine triphosphate (ATP). Carnitine is therefore essential for the proper functioning of the muscles, including the heart, a muscle that is constantly under stress and therefore continually in need of “fuel”.

In the body, carnitine is mainly synthesized by the liver and kidneys. That of commerce is synthesized in the laboratory and sold as a dietary supplement in the form of L-carnitine and acetyl-L-carnitine (in capsules, tablets, powder for diluting, etc.). L-carnitine is water-soluble while acetyl-L-carnitine is fat-soluble (fat-soluble).

Food sources of carnitine
The body synthesizes the carnitine it needs from food. The best sources are meat, especially red, and, to a lesser degree, dairy products, avocado and tempeh (a fermented soybean product). In modern societies, dietary intake of carnitine is estimated to be between 20mg and 200mg per day, which is much lower than the doses administered in clinical trials. However, carnitine of food origin is much better absorbed (75%) than that in the form of supplement (from 5% to 18%).

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