How are curcumin and dementia related?

What first got our attention was that there were epidemiological studies that showed that in India, where they consume a lot of spicy foods like curry, which has turmeric and curcumin, there was a lower rate of Alzheimer’s disease, compared to in other countries. Of course, that’s what a lawyer might call circumstantial evidence; it doesn’t prove cause and effect. But the basic scientific evidence that I alluded to—the anti-inflammatory effects, anti-amyloid, anti-tau and even antioxidant effects—suggested it might be brain protective.