I bet you thought it was ENTIRELY about the carbs you were eating that were responsible for your weight gain, or slide into mild cognitive impairment.

Well, you're not entirely wrong, however, having lots of carbs puts an increased demand on your ability use and produce choline. High carbs are one of the reasons for the choline deficiency, the other reason is that some people 25 - 40+ percent are limited in their abilty to use and manufacture choline (from Bile, to acetyl choline a vital neurotransmitter, and more). 

Having high carbs (carbs in general), not consuming enough choline (egg yolks and liver) and having specific SNPs (single nuclear polymorphisms) that predispose you to not being able to use choline well, or at all, puts you unequivocally at risk for cognitive impairment, dementia, and NAFD, if not obesity as well.

The GOOD NEW is that it is correctable without medications through dietary changes.

I kid you not.