Yes — tequila contains zero carbohydrates and is one of the most keto-friendly spirits available. Choose 100% agave tequila blanco (silver) for the cleanest, most authentic margarita flavor and the purest ingredient profile. Avoid flavored tequilas which may contain added sugar.

Allulose produces the closest result to a classic margarita — it dissolves cleanly in cold liquid, does not crystallize, and has no cooling aftertaste like erythritol. Monk fruit sweetener is also excellent. Make a simple syrup by dissolving the sweetener in warm water at a 1 to 1 ratio before adding to the cocktail.

A keto margarita made with 2 ounces tequila, 1 ounce fresh lime juice, and a sugar-free sweetener contains approximately 2 to 4 grams of net carbs — almost entirely from the lime juice. A traditional margarita made with commercial mix contains 20 to 30 grams of sugar per serving.

You can but fresh lime juice is strongly preferred. Bottled lime juice often contains preservatives and has a flat, slightly bitter flavor compared to fresh. For a keto margarita where the lime is the primary flavor, fresh juice makes a significant difference. One lime yields approximately 1 ounce of juice — enough for one cocktail.

Alcohol itself contains no carbohydrates but it does temporarily pause fat burning — the liver prioritizes metabolizing alcohol over producing ketones. A single keto margarita will not end ketosis but will slow it temporarily. The carb-free nature of tequila makes it a far better choice than beer or sweet cocktails for people following a ketogenic diet.