Thank you, that's super interesting information I wasn't aware of. I did get 23andMe back in 2009 and was able to locate the ApoE4 SNP. For anyone with 23andMe or WGS etc. and wants to do the same, look up rs7412 - the C/C combination is "normal", while one T increases your AD risk by 3x and two Ts by 10x.

As it turns out, I do have one T, so I have another really good reason to avoid alcohol entirely - and also to take krill oil, quercetin, resveratrol/pterostilbene, D3, K2, the Bs, and lithium (the recommendations from the study you linked).