Short answer

We found no documented interaction between NAC and Turmeric in the sources below. That isn't proof the combination is right for you: check each one's cautions, and ask your pharmacist if you take medication.

NAC (N-acetylcysteine)

What it is: An antioxidant that's both a hospital medicine (for acetaminophen overdose) and a supplement.

What the research says: As a medicine it treats acetaminophen poisoning. As a supplement, results for lung conditions and as an add-on for depression are mixed.

Cautions

• It can cause stomach upset, nausea, diarrhea, tiredness or rash; less often low blood pressure or headache.

Medicines to check

• Nitroglycerin: don't combine (severe headaches, lower blood pressure)
• Antidepressants: animal studies suggest NAC may strengthen their effect
• Cancer treatment: check with your care team

In Holitro: NAC (600 mg per capsule)

Source: Memorial Sloan Kettering Cancer Center, About Herbs: N-Acetylcysteine (updated October 2022)

Turmeric

What it is: A spice root in the ginger family; curcumin is its best-known active compound.

What the research says: There isn't enough evidence to say turmeric helps any health condition. Early evidence for knee osteoarthritis pain and stiffness is positive but needs better studies.

Cautions

• Standard turmeric or curcumin is likely safe in recommended amounts for 2 to 3 months.
• It can cause nausea, reflux, stomach upset, diarrhea or constipation.
• Liver damage has been reported with curcumin made to absorb better. Stop and see a clinician if you notice tiredness, dark urine or yellowing skin.
• May be unsafe in pregnancy.

Medicines to check

• Talk to your clinician if you take any medicine

In Holitro: Turmeric (700 mg per capsule)

Source: NIH National Center for Complementary and Integrative Health: Turmeric: Usefulness and Safety (updated April 2025)

Check with your doctor or pharmacist, especially if you take medication.

Check your stack — free

Educational information only, not medical advice. This reflects general ingredient overlap, not a personalized safety review. Always check with your doctor or pharmacist before combining supplements, especially if you take medication, are pregnant or nursing, or manage a health condition. These statements have not been evaluated by the FDA.