Can turmeric supplements cause an allergic reaction?

While it may be possible to develop a sensitivity to turmeric, it would be considered highly unusual. More often what might be considered a symptom of sensitivity to turmeric supplement, like upset stomach or diarrhea, is not caused by an allergic reaction. However, if you experience any symptoms of allergic reaction (trouble breathing, itching, dizziness, palpitations, etc.), seek medical help. Allergic reactions associated with turmeric usually take the form of contact dermatitis, as when tumeric is used in therapeutic massage oil.