N-Acetyl L-Cysteine Review

Editor's Review: 3.2 / 5.0

What You Should Know

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N-Acetyl L-Cysteine is a natural ingredient used in many weight loss supplements. Another common name for the ingredient is N-Acetyl Cysteine. According to professional online sources, N-Acetyl L-Cysteine is an amino acid that has a variety of uses in traditional and alternative medicine.

List of Ingredients

N-Acetyl L-Cysteine.

Product Features

In traditional medicine, N-Acetyl L-Cysteine can be used for many conditions and situations. The amino acid derivative can be used to reverse the effects of acetaminophen and is commonly used in patients who have carbon monoxide poisoning. Angina, bile duct blockage in children and Lou Gehrig’s disease patients also use N-Acetyl L-Cysteine. Other conditions that may benefit from N-Acetyl L-Cysteine include kidney disease, hay fever, chronic bronchitis, pneumonia, emphysema and cystic fibrosis.

There are no current studies or clinical trials being performed to study the potential effects of N-Acetyl L-Cysteine on weight loss or fat burn. The amino acid derivative has been tested, however, for its use as a treatment for Obsessive Compulsive Disorder and other mental conditions. If a dieter feels obsessed with eating food, they may find some benefit from taking a supplement with N-Acetyl L-Cysteine.

At the heart of the effect of N-Acetyl L-Cysteine in the body is the production of glutathione. Glutathione is an antioxidant that can help combat the effects of free radicals in the body. Free radicals can cause damage to healthy cells in the body which may affect the way a dieter loses weight or how muscles repair after working out. Essentially, when a workout is complete, the muscles are torn and must repair in order to build larger muscles that burn more calories. If free radicals inhibit this process, recovering from a workout can take longer. N-Acetyl L-Cysteine is sold online for around $10.00 per bottle.

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  • N-Acetyl L-Cysteine is used in traditional and alternative medicine.
  • The supplement is priced lower than other supplements.
  • Dieters can find N-Acetyl L-Cysteine easily online.


  • There is no known weight loss promoting effects.
  • Fat loss will not be increased by using N-Acetyl L-Cysteine.


Dieters looking for an increase in weight loss using a natural ingredient may not find the benefit they are looking for from N-Acetyl L-Cysteine. While the amino acid derivative is currently being tested for a variety of conditions, none of these conditions are weight loss related. Today, N-Acetyl L-Cysteine is used in traditional medicine to fight and treat a variety of disorders which increases trust the consumer may have for the ingredient, but the effects will likely be antioxidant based when included in a weight loss formula. Free radicals can damage healthy cells that are needed to repair muscles and restore the body to a healthy condition. Antioxidants help fight off free radical damage.

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One User Review about N-Acetyl L-Cysteine

  • 1

    Someone told me that she gained weight while on the NAC 600mg product. She was using it 2x a Day. Does NAC cause weight gain? I really need to know before using it.