I look at it a completely different way. If they can conclusively substantiate a link between AD and blood glucose issues, that brings diet into play as a means of trying to prevent development of the horrid disease. It puts some additional control into our hands because if there's ONE thing we can control, it's what we put in our mouths. That scenario is infinitely better than sitting back and hoping genetics doesn't just play out.

So stay mentally and physically active and now eat right to reduce your risk? It sounds pretty much like the ticket to stave off a lot of problems.

The appropriately named MIND diet is the one in the news, but it seems to have some components to it that would conflict with glucose management for someone with IGT.

New 'MIND' diet linked to reduced risk of Alzheimer's

http://www.medicalnewstoday.com/articles/291073.php

http://www.ncbi.nlm.nih.gov/pubmed/25681666

10 foods to eat per the MIND diet, 5 foods to avoid, nicely summarized at the end of this article:

http://www.express.co.uk/life-style/...-risk-dementia

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