system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If hard liquor like gin, vodka and whiskey are said to have no sugar or carbs, how does it impact your insulin levels and weight? Is the former just incorrect?
gpt
Between fermentation & distilation, there should be virtually zero carbs in hard alcohol.  The body, however, breaks down alcohol for energy and *that* is what causes problems for diabetics & weight gain.

A shot of vodka is roughly 100 calories.  If you eat "normally" (ie - all you "need") and then have a few drinks every night, those calories add up over time.