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NAC (N-Acetyl Cysteine) Supplements

Cholesterol Tests & NAC?

September 23, 2024
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Does N-acetyl cysteine (NAC) interfere with blood tests for cholesterol or uric acid? Find out in the Concerns and Cautions section of our NAC Supplements Review, which includes our Top Picks for NAC.

Also see: Which vitamins and supplements should be stopped before getting blood work, laboratory tests, or medical imaging?

NAC Storage

August 29, 2023
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Find out how temperature and humidity affect NAC (N-acetyl cysteine) quality, and learn one way to tell if it has been compromised, in the ConsumerTips section of our NAC Supplements Review. Also see our Top Picks for NAC.

Better Form of NAC?

May 23, 2023
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Is N-acetyl cysteine ethyl ester (NACET) more bioavailable than NAC? Find out what research suggests in the What It Does section of our NAC Supplements Review.

Also see our Top Picks for NAC.

Thyroid Concern with NAC

November 08, 2022
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A form of NAC was recently found to contain excess levels of iodide that caused hypothyroidism. Get the details, including the product used and symptoms that occurred, in the Concerns and Cautions section of our NAC Supplements Review.

NAC on Amazon

August 26, 2022
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NAC (N-Acetyl Cysteine) supplements are being sold again on Amazon, after the retailer removed them from its site last year. Find out why in our updated NAC Supplements Review.

NAC + Glycine for Aging?

August 23, 2022
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Supplementing with N-acetylcysteine (NAC) and glycine may have antiaging effects, according to recent studies described in the What It Does section of our NAC Supplements Review. However, as we point out, these studies have important weaknesses.

NAC for Fibrocystic Breast Pain?

July 12, 2022
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Can NAC (N-Acetyl Cysteine) supplementation reduce monthly fibrocystic breast pain? See what a recent study found in the What It Does section of our NAC Supplements Review.

Why NAC Is Coming Off Retail Shelves

September 23, 2021
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Find out why some major retailers are no longer selling N-acetyl cysteine (NAC) supplements. See the ConsumerTips section of our NAC Supplements Review.

NAC and Lung Cancer

September 13, 2021
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Was there a study that showed that animals given NAC developed lung cancer? Find out what research in animals suggested in the Concerns and Cautions section of our NAC supplements Review.

NAC & Body Odor

August 16, 2021
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Can supplementing with N-acetyl-cysteine (NAC) cause body odor? Find out in the Concerns and Cautions section of our NAC Supplements Review.

Sulfa Allergy to NAC?

July 23, 2021
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Can people with a sulfa allergy (an allergy to sulfonamide drugs) use NAC, which contains sulfur? Find out in the Concerns and Cautions section of our N-Acetylcysteine Supplements Review.

GlyNAC vs. NAC

June 07, 2021
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What is GlyNAC, how does it compare to NAC, and does it have anti-aging effects? Find out in the What It Does section of our N-acetyl cysteine (NAC) Supplements Review. Also, see our Top Picks for NAC.

NAC for Parkinson's?

July 15, 2019
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A recent, preliminary study suggested that NAC (N-acetyl-cysteine) given orally and intravenously improved symptoms in Parkinson's disease patients. For details, see the What It Does section of the NAC Supplements Review. Also see our Top Picks for NAC as a powder, capsule, and tablet.

What NAC (N-Acetylcysteine)

December 03, 2017
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NAC is both a supplement and a drug used to treat conditions ranging from flu and chronic bronchitis to compulsive behavior. A recent study evaluated its use in preventing kidney injury during angiography (imaging of blood vessels). Get the results and learn more in the "What It Does" section of the NAC (N-Acetylcysteine) Supplements Review >> Also see our top choices among NAC supplements.

NAC Reduces Compulsive Picking

March 25, 2016
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A number of studies have shown that N-acetyl cysteine (NAC), a supplement with wide variety of uses, may also reduce compulsive behaviors. The most recent study showed significant improvement in adults with skin picking disorder. Details about this and other studies with NAC, and our ratings of NAC supplements, are found in the N-Acetyl Cysteine Supplements Review >>