July 8

N-Acetyl-Cysteine: All About This Powerful Antioxidant


Getting to know the properties of NAC  

First and foremost, NAC is beneficial to the body because of its antioxidant properties (1). Antioxidants — a group of compounds that include other well-known supplements like vitamin C, vitamin E, and astaxanthin — have the important job of helping fight free radical damage and preventing oxidative stress in the body. This is an important job, as oxidative stress has been linked to a wide range of diseases and dysfunctions, including cellular damage and cancer. (2)

NAC acts as an antioxidant in its own right, but it also increases the production of other antioxidants such as glutathione. Glutathione is known as the “master antioxidant” and has demonstrated an ability to fight oxidative stress, support immune health (3), and offer protection from heavy metals (4), making it one of the most important — if not the most important — antioxidant in the body. 

NAC has also demonstrated strong anti-inflammatory properties; according to one study, published in Agents and Actions, it works by reducing the activity (5) of inflammatory cytokines and macrophages. 

Why you should care about NAC 

Because of its antioxidant and anti-inflammatory properties, NAC has been studied as a potential treatment for a wide range of conditions. The research in this area is still very new and developing, but the results look very promising.  

Some of the potential benefits of NAC include:

1. NAC and endometriosis 

NAC may be particularly helpful for endometriosis, a painful condition that affects many women. A 2013 study on 92 women in Italy showed that 24 of the 47 women who took 600 mg of NAC three times a day for three months actually canceled their scheduled laparoscopy because their endometriosis symptoms disappeared, they experienced a reduction in pain, or they had gotten pregnant. (6) This is a big deal not only because many women suffer from endo, but because there is a major lack of effective treatments and no cure for this painful condition, which means many women suffer for years without relief. 

2. NAC and the liver and kidneys  

Remember when I mentioned that NAC was used as a poison antidote? Well, that’s thanks to its protective effect on the liver and kidneys. It’s not uncommon (7) for doctors to give NAC to patients coming in with an acetaminophen overdose; in fact, it has been used for exactly this purpose for over 30 years. It’s also been studied as a remedy for acute organophosphate poisoning (8) and lead poisoning (9). 

3. NAC and brain health

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It’s also possible that NAC will prove beneficial for neurodegenerative conditions like Alzheimer’s. One controlled trial, in particular, showed that supplementing with NAC improved almost all outcomes (10) for patients and led to significant improvements in those related to cognition. 

4. NAC and fertility

NAC has been studied in the context of fertility for both men and women! One study showed that men taking NAC had increased sperm quality (11) and another showed that it improved oocyte and embryo quality in women with PCOS (12), one of the most common hormone disorders and causes of infertility in women. 

5. NAC and addiction 

NAC also represents a potential alternative treatment for substance abuse and addiction. It has been studied for gambling (13), cigarette, and even cocaine addictions (14). 

There’s still a lot to learn about NAC, but as you can see from the studies above, what we know so far is extremely exciting. As a functional medicine practitioner, I’m always looking for natural compounds that could act as remedies for difficult-to-treat disorders or as a substitute for pharmaceutical drugs. NAC represents both — and I, for one, will be keeping a close eye on the science surrounding this powerful antioxidant!

If you want to learn more about your own health case please check out our consultation process. We offer in person as well as phone and webcam consultations for people across the country and around the world.

Photo: unsplash.com

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