NOW Foods - NAC 1000 mg

Suppie Report

NOW Foods

NAC 1000 mg

B grade
85/100
SUPPIE SCORE
85/100
EFFICACY
High
SAFETY
80/100
CLEANLINESS

What Does NAC 1000 mg Do?

NOW Foods NAC 1000 mg offers a high-dose, evidence-backed formula for antioxidant protection, immune and liver support. Dosage aligns with clinical studies showing strong benefits for detoxification. Overall safe with minimal GI side effects; ideal for adults seeking reliable NAC supplementation.
What are the main benefits of NAC for immune support?
How does NAC support liver health, and what dosage is effective?
Are there any long-term effects of taking NAC supplements?
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What Are the Benefits of NAC 1000 mg?

Based on proven scientific research

Free Radical ProtectionStrong
Immune System SupportModerate
Liver Health SupportVery strong
Glutathione ProductionStrong

Good For:

What Are the Side Effects of NOW Foods NAC 1000 mg?

Always consult your health practitioner if in doubt.

RiskLow Risk

Overview

•NAC at 1000 mg is well within safe oral limits (up to 3000 mg/day), with GRAS status and low toxicity for healthy adults.
•Common side effects include mild gastrointestinal issues like nausea or diarrhea, affecting <10% of users at this dose.
•Potential interactions with nitroglycerin or blood thinners; consult physician if on medications, especially for heart conditions.
•Not recommended during pregnancy/nursing without medical advice; avoid in asthma or bleeding disorders due to rare risks.
•Vegetarian formula free of common allergens (wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, sesame), suitable for most sensitivities.
•GMP-manufactured in USA; no reported contamination issues, but store in cool, dry place to maintain quality.

Potential Side Effects

Negative Interactions

Inactive Ingredients

Microcrystalline cellulose
Low Risk
Hydroxypropyl cellulose
Low Risk
Stearic acid (vegetable source)
Low Risk
Croscarmellose sodium
Low Risk
Vegetarian coating (hypromellose (cellulose))
Low Risk
Sunflower lecithin
Low Risk
Triethyl citrate
Low Risk
Sunflower oil
Low Risk
Silicon dioxide
Low Risk

What Are the Ingredients in NOW Foods NAC 1000 mg?

N-Acetyl Cysteine (NAC)
1,000 mg
Microcrystalline Cellulose
Hydroxypropyl Cellulose
Stearic Acid (vegetable source)
Croscarmellose Sodium
Vegetarian Coating (hypromellose (cellulose))
Sunflower Lecithin
Triethyl Citrate
Sunflower Oil
Silicon Dioxide

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Dosage & Bioavailability

How the active doses and forms in NAC 1000 mg compare to the research.

•N-Acetyl Cysteine (NAC) — 1,000 mg per serving; within the 900-1,800 mg/day used in studies.

Frequently Asked Questions

Common questions about NOW Foods NAC 1000 mg