Sports Research Vegan NAC Supplement (N-Acetyl Cysteine) 600 mg - Supports Antioxidant Activity - NAC 600 mg - Non-GMO - 90 Capsules for Adults Daily Use

Clinical trials typically use 600-1,800 mg daily. Sports Research Vegan NAC 600mg delivers 600mg NAC per capsule, which we classify as Therapeutic relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Vegan capsules vs alternatives), dose adequacy, and third-party testing.

Yes — Non-GMO Verified, Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

NAC at 600mg daily is the standard clinical dose used in hundreds of studies and is considered safe for most healthy adults. Sports Research Vegan NAC is Non-GMO Verified and third-party tested for purity. Consult your healthcare provider if you take prescription medications.

NAC may have mild anticoagulant properties and could interact with nitroglycerin, blood thinners, and certain immunosuppressants. If you take any prescription medications, consult your doctor before starting NAC supplementation.

Common side effects include mild nausea, a sulfurous taste or smell, and occasional digestive upset. These are typical for all NAC supplements and can be minimized by taking with food. The sulfur odor is a normal characteristic of NAC.

NAC has not been extensively studied during pregnancy or breastfeeding. While it is used in hospital settings for acetaminophen overdose in pregnant women, supplemental use during pregnancy should only be done under medical supervision. Consult your OB-GYN before use.

NAC has been used in clinical studies lasting several months with a strong safety profile at 600-1200mg daily. Long-term daily use at the 600mg dose is generally well-tolerated. Periodic breaks are not typically required, but discuss long-term use with your healthcare provider.

The recommended dose is 1 capsule (600mg) per day. For enhanced glutathione support or respiratory health, some practitioners recommend 2 capsules daily (1200mg). Each bottle contains 90 capsules, providing a 45-90 day supply depending on dosing.