L-carnitine Supplements

 L-carnitine Supplements

L-Carnitine stands for levocarnitine. It is a chemical similar to amino acids. The naturally occurring derivative of amino acid is often taken as a supplement, or people can take it from food. The name carnitine derives from the Latin word carus or flesh. It is a generic term uses for various compounds like L-Carnitine, propionyl L-carnitine, and acetyl L-carnitine. This article will discuss the uses, side effects, precautions, and reviews about the L-carnitine supplements.

Overview of L-carnitine supplements

It has considered as the amino acid structure that occurs naturally. People can take it as a supplement or from their diet. Carnitine plays a main role in the production of energy in our bodies. It burns the excessive fats in our body by converting them into energy. L-carnitine is a form of carnitine which is a compound that is a derivative of amino acids. L-Carnitine is the biologically active form of carnitine.

Forms Of Carnitine

These are some of the other types of carnitines:

  • L-carnitine L-tartrate: Due to its rapid rate of absorption, athletes used it as a sports supplement. It recovers muscles and aids the soreness of the muscles while exercising.
  • Acetyl L-carnitine: It has also called ALCAR sometimes. It is mainly taken supplements to boost brain health. It has considered to benefits the patients suffering from neurodegenerative disease.
  • D-carnitine: This form of carnitine is often considered an inactive form. It can cause a deficiency of carnitine in a body by absorbing its other forms within our body when taken.
  • Propionyl L-carnitine: Taking its supplements can relieve pain and benefit heart health because of its antirheumatic properties. It is well suited for issues related to the circulatory system.

 Benefits of L-carnitine supplements

        Possibly L-carnitine seems to have high utility in diseases related to the brain. It has shown efficacy in brain fog and depression.

        The intake of supplements can benefit females suffering from polycystic ovary syndrome.

        Sperm quality in males has founded improved with supplementation. However, it has been noted in small numbers of studies.

     Fatigue is obvious in old age, but Intake of L- carnitine supplements can reduce it.

        Minorly, it seems to have beneficial effects on blood pressure. Moreover, have a good effect on insulin sensitivity.

        Since the fatty acids in your body move sufficiently by the carnitine intake, it may aid in weight loss.

        This form of carnitine can aid the brain from cell damage.

        Due to the increase in blood flow and nitric oxide formation, it can build up your stamina.

        Chemotherapy, a treatment for cancer patients, can lead to L-carnitine deficiency in a person. In these cases, it can be beneficial.

Side effects of L-Carnitine Supplements

Taking a 2-gram in a day have considered relatively safe. L-carnitine supplements are mostly tolerable for most people. But some sensitive people may experience digestive problems like nausea, cramps, discomfort, and vomiting. When taken by mouth, it can cause a fishy odor in your urine, breathe and sweat. At the same time, the injection of L-carnitine is pretty much safe with the approval of a health care provider. Hence, tentative evidence suggested that the supplementation of L-carnitine can lead to a high risk of atherosclerosis


  • Acenocoumarol (Sintrom) slows down the clotting of blood. The effectiveness of acenocoumarol(Sintrom) might increase by L-carnitine. Increasing Its effectiveness can slow down the clotting of blood too much. But you might need to change the dose of acenocoumarol (Sintrom).
  •   L-carnitine seems to decrease the functionality of the thyroid hormone in the body. Supplementation of L-carnitine may decrease the effects of thyroid hormones.
  • Warfarin (Coumadin) that have also used to slow blood clotting. The intake of L-carnitine will increase the effects of warfarin (Coumadin). Moreover, lead to the increases the chances of bleeding and bruising. Let your blood be checked regularly and consider the changing of the dosage of warfarin.
Dosage of L-carnitine supplements

        990 mg of tablets two to three times daily in tablets can be used daily in case of L-carnitine deficiency.

        You can take the dosage of 900 mg to 2 grams of supplements taken in one to two divided doses daily for two weeks to 6 months for the patient with chest pain.

         For patients with congestive heart failure, 1.5 to 3.0 grams of L-carnitine can be taken in one to two divided doses daily for about 34 months.

        Patients suffering from serious kidney disease can takeupto0.64-3 grams or 10 mg/kg of dosage daily for 3-52 weeks.

        2-4 grams of the tablets have been taken daily for 2-4 months for hyperthyroidism.

     In case of male infertility, taking 2-3 grams of L-carnitine supplements taken in three divided doses daily, with or without vitamin E, can effectively treat it for using it 2 to 24 weeks.

         100 mg/kg can be taken daily for four days to aid the myocarditis.

         The patient can take 250 mg of the supplement daily for 12 weeks. Take 3-4 grams of L-carnitine daily during the treatment starting on the 3rd day of the cycle and ends it within 2-3 weeks. Using L-carnitine 3 grams daily for three months has also recommended for females suffering from polycystic ovarian disease(PCOS).

50 to 100 mg/kg has been taken to avoid the toxic side effects caused by the drug valproic acid in dosage divided into three to four doses up to a maximum of 3 grams daily.

Precautions and Warning regarded L-carnitine supplements

There is no reliable information to know that supplementation of L-carnitine is safe to use in pregnancy. Consider being safe and avoid using it. Taking L-carnitine is considered safe in breastfeeding women while taken through the mouth according to the dosage given by a healthcare provider. L-carnitine is given to infants in small amounts through breast milk, and the formula does not have any reported side effects. While taking in excess by a breastfeeding mother's side effects are not known yet.
It is also safe for children when using it for the short term, appropriately by mouth. It can be taken safely through the mouth for up to 6 months.

Author: Umama Azeem

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