Carbs in Bourbon: The Quick Answer
Bourbon whiskey contains 0g of net carbs — pure distilled spirits have no carbohydrates. The distillation process removes all sugars and starches from the grain mash. With 231 calories per 100mL (about 102 calories per 1.5oz shot), 0g protein, and 0g fat, bourbon is one of the most keto-friendly alcoholic options available.
Net carbs — not total carbs — are what matter for keto and low-carb diets. Only net carbs raise blood sugar and affect insulin, which is why tracking them accurately is key to staying in ketosis. Use our Keto Macro Calculator to find your daily net carb limit based on your body and goals.
Is Bourbon Keto Friendly?
Yes — bourbon is keto friendly. Pure bourbon whiskey has 0g net carbs per serving. The distillation process eliminates all carbohydrates from the grain mash. The calories in bourbon come from alcohol (7 cal/g), not carbohydrates. Watch out for bourbon cocktails with sugary mixers — the mixers, not the bourbon, are what add carbs.
Best Low-Carb Swaps for Bourbon
Bourbon is high in carbs. If you're eating low-carb or keto, these swaps deliver the same satisfaction with a fraction of the net carbs.
| Instead of | Try this | Why it helps |
|---|---|---|
| Bourbon neat or on ice | Already 0g net carbs — a great keto spirit | Pure distilled spirits have no carbs |
| Bourbon cocktail with sugary mixers | Bourbon + sparkling water + bitters | Zero-carb cocktail — bitters add ~0.5g, skip the simple syrup entirely |
| Old Fashioned with sugar cube | Old Fashioned with liquid stevia instead of sugar | Same cocktail, zero sugar carbs |
How Net Carbs Are Calculated
Net carbs are calculated by subtracting dietary fiber from total carbohydrates: Net Carbs = Total Carbs − Fiber. For bourbon whiskey: 0g total carbs − 0g fiber = 0g net carbs. Bourbon's calories come entirely from alcohol content, not carbohydrates.
Dietary fiber is subtracted because it passes through the digestive system without being absorbed as glucose. It does not raise blood sugar or trigger an insulin response, making it irrelevant for carb counting on keto and low-carb diets.