Longevity
Curcumin — timing, dose & interactions
Main active compound in turmeric, with anti-inflammatory activity in lab studies. Rapidly conjugated in the gut and liver, so bioavailability is the main problem.
Also known as Turmeric extract
Timing
When to take it
Take with a fat-containing meal. Plain curcumin is poorly absorbed unless enhanced.
Interactions
Curcumin with other supplements
Safety
Medications & health conditions
Curcumin may increase bleeding risk. Curcumin has antiplatelet effects, and case reports describe raised INR in people on warfarin.
Curcumin may lower blood sugar. Possible additive effect with diabetes medication. Monitor glucose.
Antioxidants may interfere with cancer treatment. Some chemotherapy and radiation work partly through oxidative damage; high-dose antioxidants could reduce their effect. Discuss every supplement with your oncology team.
Curcumin supplements may not be safe in pregnancy. Culinary turmeric is fine; supplement doses have not been shown to be safe.
Rare liver injury reported with turmeric supplements. Most cases involved high-bioavailability or piperine-enhanced products.
Stop curcumin before surgery. Antiplatelet effects — commonly paused 2 weeks before surgery.
Buying guide
What to look for on the label
Curcumin
- With piperine (BioPerine®)
- Or enhanced forms: phytosome, micellar, or with turmeric oils
FAQ
Common questions
When is the best time to take Curcumin?
Lunch or Dinner. Take with a fat-containing meal. Plain curcumin is poorly absorbed unless enhanced.
Should Curcumin be taken with food?
Yes. It is fat-soluble, so take it with a meal that contains some fat.
Can you take Curcumin with Iron?
Probably fine for most people, but separate them if you are treating low iron. If you are iron-deficient, keep curcumin at least 2 hours away from iron.
Can you take Curcumin with Piperine?
Yes — take them at the same time; that is the whole point of the pairing. Take in the same dose, with a fat-containing meal. If you take prescription drugs, check with a pharmacist first — or choose a piperine-free enhanced curcumin (phytosome, micellar).
Sources