I want to introduce you to a great resource named eat this not that.  Many years ago it started with a book and then a podcast and blog.  There is really great information there and I ran across this article about what to avoid and add into your diet for memory health.  The four items to avoid are, refined carbohydrates, consuming food with mercury in it, artificial sweeteners, and low quality fats.  The takeaway from this article is very well stated, “ While the impact of food on brain health and memory is still being researched, current data provide enough information to warrant caution when consuming the above foods. Genetics and other factors likely play a role in memory as well, but food choices are one actionable steps you can manage in efforts to maximize your brain health and memory."