The Science
A 10-year study of over 1600 Japanese seniors found that those who consumed a diet rich in trans fatty acids were up to 75% more likely to develop Alzheimer’s and other forms of dementia, even after adjustment for dietary factors.[1]  Using blood markers, the scientists tested for trans fats, most commonly consumed as sweet pastries, margarine, candies and other processed foods.

Expert Insight
Though trans fats are naturally occurring in meats and dairy, manmade trans fats are responsible for the majority of our intake. Due to their association with bad cholesterol (LDL), the FDA banned industrial trans fats in 2015, but extensions have been granted—and small amounts are still permitted in foods certified “trans-fat-free.” 

The Bottom line
In the fight against dementia, lifestyle matters. By steering clear of trans fats we can protect our brains and bodies from trouble down the road. Eating whole, unprocessed foods is probably the best way to achieve this. It’s never too late to start eating better! 

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[1] https://n.neurology.org/content/early/2019/10/23/WNL.0000000000008464