Now NAC (600 mg) – 100 veg cap

🧬 What is NOW NAC 600 mg?

NOW NAC (N-Acetyl Cysteine) is a powerful antioxidant supplement delivering 600 mg of NAC per vegan capsule. NAC is a stable form of the amino acid L-cysteine and is known for boosting glutathione levels, supporting detoxification, lung health, immune balance, and liver function.

NOW Foods offers a vegan, non-GMO, and GMP-certified NAC supplement, ideal for people seeking respiratory, liver, or antioxidant support with clinical-grade purity.

📦 Product Snapshot

🧠 What Does NAC Do in the Body?

NAC acts as a precursor to glutathione, the body’s master antioxidant. It protects cells from oxidative stress, helps detoxify heavy metals and toxins, supports respiratory function by thinning mucus, and contributes to neuroprotection.

🧪 Ingredients Breakdown

✅ Free of common allergens like gluten, soy, and dairy.

💊 How to Use NOW NAC 600 mg

Suggested Use:

• Take 1 capsule 1–2 times daily, preferably with meals or as directed by your healthcare professional. 

Usage Scenarios:

• Liver health: Use with milk thistle or alpha-lipoic acid 
• Respiratory support: Use during cold season or high pollution exposure 
• Antioxidant defense: Combine with Vitamin C and Selenium for synergistic effects 

⏰ Best taken in the morning or early afternoon to align with natural detox cycles.

⚠️ Side Effects of NAC

Most users tolerate NAC well. Mild and rare side effects may include:

• Gastrointestinal discomfort (nausea, bloating) 
• Headache or dizziness 
• Unusual odor in urine (due to sulfur compounds) 

💡 To reduce GI upset, always take with food.

🚨 NAC Overdose Effects

High doses above 2,400–3,000 mg/day may lead to:

• Nausea, vomiting, diarrhea 
• Hypotension (low blood pressure) 
• Liver enzyme elevation (rare) 

⚠️ Stick to 600–1,800 mg/day unless supervised by a healthcare provider.

🔁 NOW NAC vs Other NAC Supplements

✅ NOW NAC is ideal for users seeking quality, clean sourcing, and vegan-friendly capsules.

❓ People Also Ask (FAQs)

What is NOW NAC 600 mg used for?

It’s used to boost glutathione, support lung health, aid in liver detoxification, and reduce oxidative stress.

Is NAC safe to take daily?

Yes, when taken in doses under 1,800 mg/day. NAC is widely studied and considered safe long-term.

Can NAC help with mental health?

Yes. Several studies show NAC supports brain function, mood, and even symptoms of depression or OCD.

Why is NAC sometimes hard to find?

NAC was under regulatory review by the FDA due to its classification. However, NOW NAC remains available as a dietary supplement in most markets.

Can I take NAC with other antioxidants?

Yes. It pairs well with Vitamin C, selenium, alpha-lipoic acid, and glutathione for enhanced antioxidant defense.