Plain vodka contains zero carbohydrates. A standard 1.5-ounce shot of 80-proof vodka has 0 grams of carbs, 0 grams of sugar, and 0 grams of fat, making it one of the most low-carb-friendly alcoholic drinks available. Its 97 calories come entirely from the alcohol itself.
Why Vodka Has Zero Carbs
Vodka is made from carbohydrate-rich ingredients like grains, potatoes, or corn, so it seems like it should contain carbs. The reason it doesn’t comes down to distillation. During this process, the fermented liquid is heated until the alcohol evaporates, then that vapor is collected and condensed back into liquid. Sugars and starches can’t evaporate, so they’re left behind. What ends up in the bottle is essentially just ethanol and water.
This applies to all distilled spirits. Vodka, gin, rum, whiskey, and tequila all have zero carbs in their plain, unflavored forms, regardless of what they were originally made from. Wheat vodka and potato vodka have the same carb count: zero.
Flavored Vodka Is a Different Story
There’s an important distinction between flavor-infused vodka and vodka drinks made with sugary syrups or liqueurs. Many brands sell infused vodkas (citrus, vanilla, berry) that are flavored during or shortly after distillation. These typically contain no more calories or carbs than plain vodka.
The trouble starts with products that add sweeteners after distillation, or with premixed vodka cocktails sold in bottles or cans. A lemonade vodka cocktail, for example, can pack around 26 grams of carbs per serving, with 25 of those grams coming from added sugars. If a flavored vodka tastes noticeably sweet, it likely has sugar added. The problem is that alcohol labeling in the U.S. doesn’t require nutrition facts. The federal agency that oversees spirits (the Alcohol and Tobacco Tax and Trade Bureau) allows voluntary calorie and carb statements on labels but doesn’t mandate them, so you often can’t check the bottle the way you’d check a food package.
What Your Mixer Adds
The carbs in a vodka drink almost always come from whatever you mix with it. Here’s where the numbers can climb fast:
- Soda water or sparkling water: 0 grams of carbs. This is the go-to for keeping a vodka drink truly low-carb.
- Diet tonic or diet soda: 0 grams of carbs, though regular tonic water has about 22 grams per 8-ounce serving, roughly the same as a soda.
- Orange juice: Around 26 grams of carbs per 8-ounce glass.
- Cranberry juice cocktail: About 30 grams of carbs per 8 ounces.
- Ginger beer: Typically 30 to 40 grams per 12-ounce can.
A vodka soda with a squeeze of lime keeps you at essentially zero carbs. A Moscow mule or a cosmopolitan does not.
Calories Still Count
Zero carbs doesn’t mean zero impact. That standard shot of vodka still delivers 97 calories, and those calories can’t be stored or used for anything productive by your body. Your liver prioritizes breaking down alcohol over everything else, which means fat burning effectively pauses while your body processes each drink. Two or three drinks can stall that process for hours.
Higher-proof vodkas carry more calories because more alcohol means more energy per sip. A shot of 100-proof vodka, for example, has noticeably more calories than the same pour of 80-proof, even though both still register zero carbs.
Vodka on a Keto or Low-Carb Diet
Because plain vodka has no carbs, it won’t add to your daily carb count on a ketogenic or other low-carb diet. That makes it a popular choice among people tracking macros. But alcohol and ketosis have a complicated relationship. When your liver is busy processing ethanol, it shifts its metabolic priorities in ways that can temporarily affect how your body handles fats and ketones. Research published in The Journal of Clinical Investigation found that sustained alcohol intake combined with dietary fat led to significant increases in ketone production, but this was a metabolic disruption rather than a sign of “better” ketosis.
In practical terms, a vodka soda on a Friday night won’t kick you out of ketosis through carbs. But it will slow fat burning while your body deals with the alcohol, and it may leave you more prone to overeating afterward. If you’re strictly tracking progress on a low-carb plan, alcohol tends to stall results even when the carb math looks clean.