In the study itself participants were given 1 gram of turmeric mixed into their ordinary breakfasts (Lee et al., 2014).
Their working memory was tested before and some time after their breakfast, and the results were compared with a placebo-control condition.
Professor Wahlqvist, who led the Taiwanese study, explained the results:
"We found that this modest addition to breakfast improved working memory over six hours in older people with pre-diabetes."Diabetes and memory problems are linked because having diabetes makes it more likely that a person will also develop dementia if the diabetes is not well controlled.
Turmeric is a yellow spice already widely used in cooking, especially in Asia.Its distinctive yellow colour is given to it by a substance called curcumin, which makes up between 3-6% of turmeric.It is the curcumin which is thought to have an active effect in reducing the memory problems associated with dementia.