‘Could cheese and wine help to prevent Alzheimer’s disease 2’

Last week I got the whole article ‘Could cheese and wine help to prevent Alzheimer’s disease’ from a coworker from the University of Iowa. After reading it, I am even more confused. The researchers found out that ‘alcohol of any type daily also appear beneficial, and red wine was sometimes additionally protective’.And yes, during their obervations they concluded that adding cheese and red wine to the diet daily, and lamb on a weekly basis, may improve long-term cognitive outcomes. And there were also increased baseline levels of Fluid Intelligence with daily consumption of cheese.
And a greater red wine consumption should increase Fluid Inteligence baseline in the case you have a APOE4 gene.
The APOE4 variant is particularly significant because it is associated with an increased risk of developing Alzheimer’s disease and cardiovascular diseases. People who inherit one copy of the APOE4 gene from one parent have a higher risk, and those who inherit two copies (one from each parent) have an even greater risk.
But with this kind of remark I am very confused. In the study/research they found out that when distinguishing amount, type  and frequency of drinking alcohol, greater red wine consumption over time was related to better FIT (Fluid Intelligence Test) scores and consistent alcohol daily, but not weekly or monthly consumption, may further inprove score performance. But one of the conclusions is even stranger: ‘We further observed that up to a bottle a day of red wine could be beneficial, under the right conditions’.
I learned in the past that consuming alcohol is not good for your body. But I read also that some wine writers and researchers claim that in red wine you have some very good substances like flavonoids (antioxidants). The antioxidants help your body to get less bad radicals (like bad cells) in your system.
I believe that drinking red wine can be good for you, but like everything else, with moderation.