Alzheimer's is a side effect of a sugar rich diet.
Careful with those absolutes. That linked article overall discusses obesity as a likely risk factor for it. On the sugar point, "sucrose" only appears once in the piece and the referenced study involved mice, not humans.
“Currently, there is a rapid growth in the literature pointing toward insulin deficiency and insulin resistance as mediators of AD-type neurodegeneration, but this surge of new information is riddled with conflicting and unresolved concepts regarding the potential contributions of type 2 diabetes mellitus (T2DM), metabolic syndrome, and obesity to AD pathogenesis.”
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769828/#:~:tex....https://www.mdpi.com/2227-9059/12/1/99
Part of why that matters is that you will have no trouble finding people who ate little sugar and still developed it, or sweet fiends who didn’t, and presenting such a simple explanation can feel cruel to people who saw their loved ones die a pretty ugly death since it sounds like you’re saying it’s a choice.