The Top NAC Supplements in Australia

by CamilaGriffin 2928 views Supplements

The Top NAC Supplements in Australia

This new not-so-new supplement is making waves now, so what’s the deal with NAC or n-acetyl l-cysteine? NAC is the supplement form of l-cysteine, a conditionally essential amino acid that the body can make. When our bodies are under stress, l-cysteine becomes deficient or when dietary intake is inadequate.

Why is L-Cysteine important?

L-cysteine is a crucial amino acid when it comes to glutathione production. Glutathione is the most powerful antioxidant, which helps to reduce inflammation, oxidative stress, and toxicity in the body. All these can lead to poor health outcomes and rapid ageing. The N-acetyl form of l-cysteine has better absorption and passes through the blood barrier. As Dr Vincent, Australia's leading cellular and antioxidant researcher, explains

Our body naturally produces cysteine from two other amino acids: methionine and serine, and it is also easily found in most protein rich foods, dairy products, seeds and legumes. A serve of chicken breast supplies our body with almost double the RDI value of cysteine. It is an important precursor in our body antioxidant’s mechanism, along with other nutrients such as glutamine and glycine, to produce glutathione.  NAC has been studied to investigate its health effects on brain functions, liver functions and fertility in both men and women.

What are the benefits of NAC?

Because NAC is a potent antioxidant, anti-inflammatory and immune-supporting amino acid, it has many benefits. Here are some:

Immune Support

N Acetyl l-cysteine (NAC) has been shown to work as a famous immune-supporting formula. This powerful antioxidant has become popular due to its great benefit to immune health. In a study, NAC supplementation has completely restored natural killer cell function in patients infected with HIV.

In another study with patients who had the flu, started having NAC, and were able to reduce the virus’s ability to replicate and reduce viral load, reducing symptoms and length of the illness.


NAC has been shown to play a vital role in detoxification as it can prevent the side effects of certain drugs, pollutants, heavy metals, and environmental toxins.

Some studies have suggested the importance of NAC use to support liver and kidney health after toxicity occurs. This is because of the powerful detoxifying and anti-inflammatory benefits. Another study indicates the application of NAC for non-alcohol fatty liver disease (NAFLD) and other hepatic disorders.

Brain Health:

Because NAC can replenish glutathione and regulate glutamate in the brain, it may help to support brain health, memory and learning. Some studies suggest that NAC may help slow age-related brain decline due to oxidative stress over time.

Final thoughts:

NAC is a precursor of glutathione, which is the most potent antioxidant in the body. There are many health benefits associated with this powerful amino acid. For maximal results, NAC is better taken at night-time and dosage between 600 – 1200mg. You can find NAC in capsule or powdered form.

Product Spotlight: 

NAC by Switch Nutrition

More Info

The Benefits of NAC by Switch Nutrition:

  • Reduce free radical damage in the body
  • Support Glutathione production
  • Maintain healthy immune system function
  • Support performance and body goals
  • GMP quality assured

Each serving of NAC by Switch Nutrition contains:

  • 100% pure N-Acetyl L-Cysteine

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de Andrade KQ, Moura FA, dos Santos JM, de Araújo OR, de Farias Santos JC, Goulart MO. Oxidative Stress and Inflammation in Hepatic Diseases: Therapeutic Possibilities of N-Acetylcysteine. Int J Mol Sci. 2015 Dec 18;16(12):30269-308. doi: 10.3390/ijms161226225. PMID: 26694382; PMCID: PMC4691167.

Mokhtari, V., Afsharian, P., Shahhoseini, M., Kalantar, S. M., & Moini, A. (2017). A Review on Various Uses of N-Acetyl Cysteine. Cell journal, 19(1), 11–17.

Costa M, Bernardi J, Fiuza T, Costa L, Brandão R, Pereira ME. N-acetylcysteine protects memory decline induced by streptozotocin in mice. Chem Biol Interact. 2016 Jun 25;253:10-7. doi: 10.1016/j.cbi.2016.04.026. Epub 2016 Apr 14. PMID: 27087133



Health & Fitness Writer

I am a journalist/writer who loves the health and fitness industry. I graduated from the University of Queensland in 2008, and I have been involved in the fitness and health industry for many years. I have taught Body Pump in the past and competed at WBFF. I love writing and researching about nutrition and supplements. In my spare time, you'll find me at the beach.

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