Curcumin/turmeric supplements may increase the effects of several drugs, including blood-thinning and blood-sugar lowering medications, as discussed in detail in the Concerns and Cautions
section of ConsumerLab.com's Curcumin and Turmeric Supplements & Spice Review
Curcumin may also reduce iron absorption from foods
Also, be aware that piperine (from black pepper extract) found in many curcumin supplements may also increase the effects of a number of medications, just as it increases the bioavailability of curcumin.
Turmeric itself has a lower concentration of curcumin than the purified forms used in curcumin supplements. Although diets high in turmeric tend to provide far less curcumin
than found in such supplements, adding a very large
amount of turmeric spice to food was reported in one case to cause a serious drug interaction
For more details, see the Cautions and Concerns Section of the Curcumin and Turmeric Supplements & Spices Review >>
Also see these related CL Answers:
Can curcumin with black pepper extract cause constipation? I had this problem when taking a curcumin formula with piperine, but it resolved when I switched to a curcumin supplement without this added ingredient. >>
How does turmeric spice compare to turmeric (curcumin) in supplements? I sprinkle it on my foods and wonder if that's equivalent to taking a supplement. >>
Is it safe to take curcumin or turmeric supplements for a long period of time? >>
How should curcumin dose be adjusted if using formulations with enhanced bioavailability such as Meriva, BCM-95, CurcuWin, Theracurmin, Bioperine, and C3? >>
Is it true that taking turmeric/curcumin with food can reduce iron absorption from food? >>
This CL Answer initially posted on 10/25/2016.
Last updated 8/1/2017.