Short answer

We found no documented interaction between B-complex 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.

B-complex (active forms)

What it is: A mix of B vitamins in their active forms.

What the research says: B vitamins help turn food into energy and keep blood and nerve cells healthy; a supplement helps if your diet falls short.

Cautions

• High-dose folate can hide a vitamin B12 deficiency.
• Taking a lot of vitamin B6 for a year or more can cause nerve damage.
• Niacin at 30 mg or more can cause flushing and itching.

Medicines to check

• Methotrexate: folate can interfere with it
• Anti-seizure medicines (folate and vitamin B6 notes)

In Holitro: Methyl B-Complex

Sources: NIH Office of Dietary Supplements: Folate: Fact Sheet for Consumers (updated November 2022); NIH Office of Dietary Supplements: Vitamin B6: Fact Sheet for Consumers (updated June 2023); NIH Office of Dietary Supplements: Niacin: Fact Sheet for Consumers (updated March 2021)

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.