3 Reasons to Supplement with NAC

N-acetyl-L-cysteine (NAC) is an amino acid that acts as an antioxidant and is a precursor in the body to glutathione, a critical antioxidant. Glutathione works in the liver to change chemicals and metabolic byproducts into harmless substances for excretion from the body. NAC is also an antioxidant in its own right.

There are many other benefits to supplemental NAC. Here are 3 of the health benefits of an NAC supplement where it may be supportive.

1. Heart Disease

Research has pinpointed a specific lipoprotein called Lp(a) as an indicator associated with heart disease risk. Lp(a) is considered a relevant marker in heart disease risk assessment.

Diets and drugs designed to lower blood cholesterol levels, or trying to lower LDL, do not lower Lp(a) levels. Research as indicated that NAC may be one of the most effective nutrients known to lower Lp(a) levels. NAC reduced Lp(a) levels by 70%. LP(a) is comprised of an LDL particle attached to the large glycoprotein apo(a) by one or more disulfide bonds. NAC breaks up the disulfide bonds by converting each disulfide group into two sulphydryl groups.

NAC also inhibits heart damage by preventing LDL from being oxidized, by reducing plasma homocysteine levels and by free-radical quenching effects. Among its NAC heart benefits, NAC protects against ischaemic and reperfusion damage. NAC also potentiates the coronary dilating and anti-platelet effects of nitroglycerine, as well as limiting the development of tolerance to nitroglycerine. Finally, ST-depression, a clinical sign of myocardial ischaemia, was not seen following pretreatment with NAC, suggesting attenuation of impaired tissue oxygenation and preservation of myocardial performance by NAC. 

2. Detoxification & Chelator

Sulphydryl groups protect against toxins. SH groups react directly with many poisons, including herbicides, drugs (acetaminophen), environmental pollutants such as carbon tetrachloride, microorganisms including E. coli and aflatoxin, and against heavy metals. Indirectly, NAC helps with detoxification by producing optimal amounts of glutathione for conjugation reactions, making harmful compounds less toxic. NAC is approved as a drug for use to prevent liver damage from acetaminophen overdose.

3. Respiratory Effects

NAC has been used for years as a mucolytic in persons having bronchopulmonary diseases including chronic bronchitis, cystic fibrosis, asthma, sinusitis and pneumonia. NAC helps reduce the viscosity of mucus so that it may be more easily coughed up. It accomplishes this by converting the disulphide bond of the mucoproteins into sulphydryl bonds and cleaving the mucoproteins into smaller molecules.

Please consult with a health care professional before taking any new supplement to ensure proper dosage. To learn more about NAC and other supplements, contact Village Green Apothecary.

NAC Benefits for Men

A lot of our male users have asked us where they should place NAC in their routine, and most of it comes down to glutathione and oxidative stress. Being a glutathione precursor, NAC may help lower oxidative stress and support the body’s antioxidant defenses, linked to healthy aging. The benefits of NAC supplements here draw on the same detox and heart research from above, just from a men’s-health angle. As ever, consult your healthcare provider for the right dose.

Frequently Asked Questions

Is NAC good for cholesterol?

NAC has been investigated as a treatment for reducing Lp(a), a type of lipoprotein that’s one of the most accurate markers for heart disease. NAC reduced Lp(a) levels by 70%, something that traditional cholesterol-lowering diets and medications can’t do. It might also be useful as a NAC supplement for cholesterol, supporting healthy levels by protecting LDL from oxidation. Talk with your doctor about using NAC as part of a heart health regimen.

Is NAC good for your heart?

The heart is another area in which NAC has been researched. It may help support the heart by quenching free radicals, guarding against ischemic and reperfusion injury, and reducing homocysteine. Studies have shown that NAC can potentiate the coronary vasodilatory and antiplatelet effects of nitroglycerin. See if you can find out from your health care professional whether NAC would be beneficial for you.

Can it help with cholesterol?

It is the same question, essentially, as “Does NAC support cholesterol?” And there does appear to be some evidence supporting that idea. NAC may contribute to healthy lipid balance mainly by lowering Lp(a) and helping prevent LDL oxidation. Not a replacement for your physician’s advice, so get your doc in on it.

Can NAC help?

NAC has been researched for a broad range of purposes. It is a precursor of glutathione so it may help support detoxification, and it’s long been used as a mucolytic, helping to thin the mucus in the airways. NAC may help support the body's natural detoxification pathways for heavy metals such as mercury, cadmium, and lead. The potential uses depend on your overall health, so a consultation is the best starting point.

Can NAC lower blood pressure?

Other studies have examined whether NAC will lower blood pressure, mostly indirectly via its effect on oxidative stress and homocysteine, markers of vascular health. Again, the evidence is early, and not as definitive as for cholesterol and detox. If high blood pressure is the issue, discuss a personalized strategy with your health care provider.

Does NAC help lower cholesterol?

NAC has been investigated for reducing Lp(a), a lipoprotein considered one of the most accurate markers for heart disease risk. According to the article, NAC reduced Lp(a) levels by 70%, something traditional cholesterol-lowering diets and medications cannot do. It may also support healthy levels by protecting LDL from oxidation. Talk with your doctor about using NAC as part of a heart health regimen.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.