[adrian_b]

I doubt very much that alcohol consumption in any quantity can cause a lower rate of any cancer and I have not heard of any study providing any kind of evidence for this.

When some studies show a lower cancer rate correlated with moderate consumption of certain alcoholic beverages, e.g. wine or beer, it is much more likely that those studies show a beneficial effect of some other substances contained in those beverages.

In that case, it is likely that drinking the non-fermented precursors of those beverages might have the same effects, even in the absence of alcohol, e.g. drinking fresh grape juice instead of wine, or even better, eating red or black grapes instead of drinking juice.

Alcohol in small enough quantities may have negligible bad effects, because humans and their relatives are adapted to tolerate the ingestion of fermented fruits, but there is no reason to expect any good effects.