A recent study published in the American Journal of Geriatric Psychiatry showed that taking Theracurmin, a bioavailable form of curcumin, improved memory and other measures in non-demented persons compared to controls, and seemed to prevent accumulation of amyloid beta and tau protein, as measured using FDDNP (TauMark) PET scans. Amyloid beta and tau are important biomarkers in the brain for Alzheimer's disease. Prevention or reduction in the accumulation of amyloid beta and tau protein might mean that Theracurmin prevents or delays the onset of Alzheimer's disease, but further studies are needed to see if this is true.
Memory and Brain Amyloid and Tau Effects of a Bioavailable Form of Curcumin in Non-Demented Adults: A Double-Blind, Placebo-Controlled 18-Month Trial.
Am J Geriatr Psychiatry. 2018 Mar;26(3):266-277. doi: 10.1016/j.jagp.2017.10.010. Epub 2017 Oct 27.