NOW Foods NAC Quercetin & Zinc 90 Veg Capsules

NOW® NAC Quercetin & Zinc delivers three synergistic ingredients per serving: 1,000 mg NAC, 500 mg quercetin and 15 mg zinc.* N-acetyl cysteine (NAC) is a stable form of the amino acid cysteine that promotes the formation of glutathione — a powerful free-radical scavenger that helps maintain normal, balanced immune function.* Quercetin is a free-radical neutralizer that supports healthy seasonal immune function and helps promote normal respiratory function.* Zinc is included for its well-established immune-supporting properties.* A comprehensive, modern immune-and-respiratory formula in one vegan capsule.*

About the key ingredients

• NAC (N-Acetyl Cysteine) – 1,000 mg: A stable form of cysteine that promotes the formation of glutathione, a powerful antioxidant that helps maintain normal, balanced immune function.*
• Quercetin – 500 mg: A flavonoid free-radical neutralizer that supports healthy seasonal immune function and helps promote normal respiratory function.*
• Zinc – 15 mg: An essential mineral included for its well-established role in supporting healthy immune function.* Learn more about Zinc from the NIH.
• Other ingredients: A plant-based hypromellose (cellulose) capsule with minimal flow agents — no unnecessary fillers.

Who it's for

NAC Quercetin & Zinc suits adults who want a comprehensive immune-and-respiratory formula combining glutathione support (NAC), a flavonoid antioxidant (quercetin) and an immune mineral (zinc) in one capsule.* It appeals to those focused on seasonal immune and antioxidant wellness.*

Suggested use

Take 2 capsules daily.

Quality & certifications

• Family Owned Since 1968
• GMP Quality Assured
• Made in the USA
• Non-GMO
• UL Dietary Supplement Certified

Frequently asked questions

Why combine NAC, quercetin and zinc?
NAC boosts glutathione (a master antioxidant that supports balanced immune function), quercetin supports seasonal immune and normal respiratory function, and zinc is a key immune mineral — a three-way approach to immune and respiratory wellness.*

How do I take it?
Take 2 capsules daily, which provides 1,000 mg NAC, 500 mg quercetin and 15 mg zinc.*

Any cautions?
Quercetin may interact with medications (especially nitroglycerin), so check with your doctor if you take prescription drugs or have kidney issues. Avoid additional high-dose zinc long-term.*

Cautions & interactions

Quercetin may interact with a variety of medications, especially nitroglycerin — consult your physician before use if you take prescription drugs. This product supplies 15 mg zinc; avoid additional high-dose zinc long-term (which can lower copper). Talk to your doctor if pregnant, nursing or managing a medical condition (especially kidney dysfunction). Keep out of reach of children.

Allergen information: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Quercetin may interact with a variety of medications; consult physician before using this product if taking prescription drugs (especially nitroglycerin). Consult physician if pregnant/nursing or have a medical condition. Keep out of reach of children.

*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.