Curcumin can potentially cause adverse effects, especially in large doses. Side effects include:
*Upset stomach
*Diarrhea
*Acid reflux
*Dizziness
*Headaches
Curcumin may increase levels of urinary oxalate. It may also negatively interact with some medications such as antibiotics, blood thinners, antihistamines, cardiac medications, chemotherapy treatments, and antidepressants.
Since curcumin is a blood thinner, it should be avoided if you have a bleeding disorder. It limits iron absorption and should be avoided if you’re on iron supplements. Curcumin should also be avoided by women who are expecting or breastfeeding.