system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that alcohol does not have to have the ingredients or nutritional facts printed on the bottle?
gpt
It all depends on whether something is regulated by the Food and Drug Administration (FDA, part of the Department of Health and Human Services) or the Alcohol and Tobacco Tax and Trade Bureau (TTB, part of the Treasury Department.) Only FDA-controlled items are required to have nutrition labels. For TTB beverages, it's voluntary. There have been efforts to standardize this, but nothing's ever come of it. The historical reason for this split is simple: Alcohol has always been an important source of government revenue, much more so than food.

Distilled spirits (aka hard liquor), wine, and malt beverages (aka beer and malt liquor) are all under TTB control. This creates some peculiar exceptions. Gluten-free "beer" made with something besides malted barley is an FDA-controlled beverage with a nutrition label. Hard cider is just as alcoholic as beer, but it's not malted, so needs a label. (For some purposes, it's apparently treated as wine.)