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Product Reviews N-Acetyl Cysteine Supplements Review |
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Initial Posting: 9/26/14 Last Update: 12/4/17
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Choose the Best N-Acetyl Cysteine SupplementFind Out Which NAC Supplements Provide Best Quality and Value
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NAC (N-acetyl cysteine) is a supplement which the body converts into glutathione, an important antioxidant. Supplementation may be helpful for reducing symptoms of the flu and flare-ups of chronic bronchitis and COPD. NAC may also be beneficial in Sjogren's syndrome, renal failure, schizophrenia, compulsive behavior, and polycystic ovary disease.
We independently and rigorously tested the quality of many popular NAC supplements on the market. Among the products that passed testing, the cost to obtain an equivalent dose of NAC ranged from just 9 cents to 70 cents -- meaning that you can save a lot by shopping wisely. Some products contain added ingredients, but it may not be worth paying more for these. We also found that the daily suggested dose ranged just 500 mg to 1,800 mg, so it's critical that you know how much you really need rather than rely on labels.
You must be a member to get the full test results for NAC supplements along with ConsumerLab.com's recommendations and quality ratings. You'll get results for ten NAC supplements selected by ConsumerLab.com and for four others that passed the same testing through CL's voluntary certification program, as well as information about another product very similar to one of those that passed testing.
In this comprehensive review, you'll discover:
- Which NAC supplements passed or failed our tests
- Which of the best NAC supplements provide the greatest value, i.e., high-quality NAC at lowest cost
- Why additional ingredients are sometimes added to NAC supplements and whether they matter
- What "free form" NAC means and whether it's important to look for it on labels
- Dosage of NAC for specific uses — as well as the evidence for or against these uses
- Concerns, cautions, and potential side effects with NAC
Learn More About Finding the Best N-Acetyl Cysteine SupplementsQuestion:
If I buy NAC as a loose powder in a large bag, as opposed to in tablet form, will it spoil? I've heard it can spoil or degrade into a harmful by-product. Get the answer >>
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Is it true that NAC can help clear nasal passages? Get the answer >>
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Which supplements reduce the risk of stroke? Which increase the risk of stroke? Get the answer >>
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Do glutathione supplements work to prevent aging or for other conditions? Get the answer >>
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Which supplements can help treat constipation? Get the answer >>
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Which supplements can cause diarrhea? Get the answer >>
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Can taking NAC (N-acetylcysteine) interfere with blood tests? Get the answer >>
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Which supplements can cause constipation? Get the answer >>
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