How much curcumin should you take per day?

Osteoarthritis is the best-researched area of application. For knee complaints, 1000 mg per day (500 mg twice daily, as a specially absorbed extract) demonstrably outperformed a placebo over 8 weeks: more than a third of participants were able to reduce their pain medication, compared with 13% in the placebo group. A broader review study cites 1000 to 2000 mg per day as the most studied and recommended daily dose for osteoarthritis, although the exact optimal dosage has not yet been established.

For cardiovascular risk factors in people with type 2 diabetes, 1500 mg per day has been studied (500 mg three times daily). This led to a significant reduction in blood pressure and LDL cholesterol, as well as lower inflammatory markers in the blood. It had no measurable effect on blood sugar regulation.

For bowel conditions such as Crohn's disease or colitis, the picture is still preliminary. Doses used ranged from 550 mg three times daily to 1000 mg twice daily, and initial results were positive, but the evidence is too thin for a concrete recommendation. The same applies to muscle recovery after exercise: outcomes are inconsistent and no dosage has been shown to work reliably.

An important consideration is absorption. Curcumin barely enters the bloodstream after ordinary ingestion. Newer forms, such as liposomal or lipid-bound formulations, improve absorption. The RCT in osteoarthritis also used such a specialised extract. With standard curcumin powder, the effective dose may therefore need to be higher in practice.

Curcumin is considered safe up to high doses. Phase I research found no serious side effects at doses up to 8 grams, and even 12 grams per day for three months proved well tolerated. Nevertheless, around 16% of users reported gastrointestinal complaints even at ordinary doses. At 1500 mg per day, approximately 14% also reported nausea and 11% reported headache. So do not start immediately with a high dose if you are sensitive to it.