Bourbon Nutrition Facts: Calories, Carbs, Gluten & Sugar

Bourbon's nutritional profile is simpler than many people expect, mostly because distillation strips out most of what people are usually asking about when they raise these questions.

Calories

A standard 1.5 oz shot of 80-proof bourbon contains roughly 97 calories, almost entirely from the alcohol itself. Higher-proof bourbons contain proportionally more calories per equivalent pour, since alcohol content — not sugar — is the primary calorie source in straight, unflavored bourbon.

Carbohydrates and Sugar

Straight bourbon contains effectively zero carbohydrates and zero sugar. While bourbon is made from grain, the distillation process removes the sugars and starches entirely — what remains is pure ethanol and water, plus trace flavor compounds. This differs meaningfully from beer or sweetened cocktails, which do carry real carbohydrate content.

Is Bourbon Gluten Free?

This is a genuinely more nuanced question. Bourbon is distilled from a grain mash that includes wheat, rye, or barley alongside corn — grains that do contain gluten before distillation. However, distillation is understood to remove gluten proteins from the final spirit, since gluten proteins don't carry over in the distillation process the way alcohol does. The overwhelming consensus among celiac disease organizations is that distilled spirits, including bourbon, are safe for people with celiac disease, even though the starting grains contained gluten — a genuinely different situation from beer, which is not distilled and does retain gluten from the malted barley.

What Actually Adds Calories, Carbs, or Sugar

The bourbon itself contributes essentially none of these beyond pure alcohol calories — what changes the nutritional picture dramatically is what you mix it with. A bourbon and soda water stays close to bourbon's baseline nutrition, while a sweetened cocktail (a Whiskey Sour, for instance) adds meaningful sugar and calories from the syrup and juice, not the bourbon.

The Bottom Line

Straight bourbon, on its own, is effectively zero-carb and zero-sugar, and widely considered safe for people avoiding gluten despite starting from gluten-containing grains — but always check with a doctor if celiac disease specifically is a concern, since individual sensitivity can vary.