Interesting that higher rice content in beer "revealed buttery, vanilla and creamy notes" and "was correlated with increased levels of larger alcohol molecules, like 3-methyl-1-butanol, which contribute positively to mouthfeel without raising the alcohol content above the legal nonalcoholic beer threshold." Do those larger alcohol compounds have known downsides similar to ethanol (e.g. carcinogenicity)? I'd sure like lower-alcohol beers that pose less health risk.

Most mainstream Japanese lager is made partially from rice (in these lagers, over 1/3rd of the grain used is rice), so the flavor difference is probably already familiar to many people.