Non-Nutrient/Non-Botanical

NAC 1000 mg

by NOW · Tablet or Pill

Supplement facts from the label of NAC 1000 mg by NOW: N-Acetyl Cysteine 1.0 Gram(s).

Label of NAC 1000 mg, NOW
Label image: NIH DSLD · full label (PDF)
Serving size1 Tablet(s)
Servings per container60
Most servings a day on the label3
TypeNon-Nutrient/Non-Botanical
Barcode733739001849
Label recordDSLD 335284 · entered 2025-07-24

Supplement Facts

IngredientPer serving% DVUpper limit (adults)
N-Acetyl Cysteine1.0 Gram(s)——

Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.

On the label

For: Vegan · Vegetarian · Adult (18 - 50 Years) · Kosher · Gluten Free · Dairy Free

Claim types: Nutrient · All Other · Structure/Function

Suggested/Recommended/Usage/Directions: Suggested usage: Take 1 tablet 1 to 3 times daily.

Formula re: Contains: N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine. It is a sulfur-containing amino acid that acts as a stabilizer for the formation of protein structures, and promotes the formation of glutathione.

Formulation re: Other: Glutathione is a powerful free radical scavenging compound that also helps to maintain normal, balanced immune system function. In addition, NAC can help to support healthy brain and neuronal tissues.

FDA Disclaimer Statement: 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.

Precautions re: Children: Caution: For adults only. Keep out of reach of children.

Precautions re: Pregnant or Nursing or Prescription Medications: Consult physician if pregnant/nursing, taking medication (especially nitroglycerin), or have a medical condition.

This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).