L-Carnitine Benefits And Side Effects

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Updated December 25, 2020

L-Carnitine Fat Burner IngredientL-carnitine is one of the most common ingredients in weight loss and pre workout supplements today. The Amino Acid supplement has also been known to improve the overall metabolism in the body, reduce fatigue and depression. The role it has played in promoting faster and safer weight loss is undeniable. Nevertheless, it is still important to separate the hype from the science and see if indeed L-carnitine works and to explore any possible side effects it may possess.

What is L-carnitine?

L-carnitine is basically a slightly modified amino acid normally produced in the liver and is a very important protein building block in the body. However, L-carnitine doesn’t necessarily form any protein. Its primary purpose is to move fats into special parts of the human cell known as the mitochondria where they can be burned and converted into energy.

It is based on this amazing function that L-carnitine has been termed as a very effective solution in weight loss and fat burning. On the other hand, L-carnitine supplements are simply natural products that are all designed to stimulate the production of L-carnitine with the sole aim of promoting effective fat burning and ultimately weight loss.

Why L-Carnitine Is A Popular Ingredient In Fat Burning Supplements?

One of the main reasons why many weight-loss supplements have been incorporating L-carnitine is based on its indigenous function in the body. Remember, L-carnitine is a form of amino acid that moves fat to specialized areas of the cell for energy.

Stimulating the production of more L-carnitine at an optimum will lead to better metabolism and ultimately better fat burning. Additionally, this will be a natural physiological process that will not interfere with the normal functioning of the body. This makes L-carnitine supplements safe and effective for most people who desire to reshape their bodies.

The Benefits of L-Carnitine Supplements in Burning Fat

L-carnitine has been subjected to a wide range of clinical tests and just like the feedback of people who have used it, the results have been quite promising. L-carnitine has a number of great benefits. Here is an overview of some of the l-carnitine benefits:

Effective Fat Burning: L-carnitine is responsible for moving fat to the Mitochondria which is responsible for burning it into fatty acids that are used in the production of energy. With better levels of L-carnitine in the body, it is easier to burn fat faster and easily… and significantly increase your energy levels in the process.

Improved Energy Levels: People who use L-carnitine supplements have also reported increased energy levels and a remarkable drop in fatigue.

Improved Metabolism: L-carnitine is also a crucial element in the improvement of the overall rate of metabolism in the body. This leads to improved fat burning and high energy levels.

Detox: There are some studies that have also reported that L-carnitine is responsible for the removal of potentially harmful by-products that arise through the burning of fatty acids. This goes a long way in reducing the chances of cell damage.

Its Natural: It is important to note that acetyl L-carnitine fat loss is a natural supplement that only facilitates the body to burn its own fat on its own. So contrary to popular misconceptions, L-carnitine does not burn fat its simply a stimulant that allows the body to improve its fat burning capacity.

L-Carnitine Side Effects

L-carnitine has a number of side effects but it is important to categorically state that a moderate intake of L-carnitine supplements has very mild shortcomings. The following are some of the major L-carnitine side effects that you should expect if you use L-carnitine for fat loss:

Increase in Blood Pressure: L-carnitine can sometimes cause a mild increase in the blood pressure and this has been reported in some patients.

Difficulty in Sleeping: The high energy levels created by L-carnitine can cause difficulty in sleeping for some people, though this is something that has been reported on a very mild scale.

Loss of Appetite: L-carnitine has also been reported to cause a gradual drop in appetite which on the bright side might be a good thing for people who want to lose fat and reduce weight.

The trick to deal with these side effects is to take L-carnitine at a moderate level. These shortcomings can only be visible if users overdose on the supplement. In case you are not sure which dosage suits you, feel free to talk to a doctor or a specialist who understands the workings of the L-carnitine supplement.


Losing weight and burning fat go hand in hand. Although a number of weight loss supplements have emerged in recent years, very few can actually compare to the effectiveness of L-carnitine and weight loss. For people looking for a natural, effective and proven fat burning supplement, L-carnitine is the best bet. Besides, the supplement has mild and manageable side effects and the results it has shown as far as fat burning is concerned, have been noteworthy.



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Joe Costello CNC
Certified Nutrition Coach (CNC)
Joe Costello is a National Academy of Sports Medicine (NASM) Certified Nutrition Coach, author, and internet blogger. Joe has more than 10 years of experience in the sports nutrition industry and over 3 years of experience as a supplement and nutrition blogger. As a Certified Nutrition Coach who specializes in dietary supplements, Joe strives to deliver accurate, comprehensive, and research-backed information to his readers.

You can find more of Joe’s work including his E-Books about fitness and nutrition at his official website joecostellonwc.com, or connect with him on LinkedIn, Facebook, Instagram, Vimeo, or YouTube. Joe Costello is one of the founders of TheSupplementReviews.org and years after the creation of the site, partnered with TEK Naturals, a nutritional supplement company.