Keto Approved
Diet Soda
1.10g net carbs per 12 oz
Poured straight from the can over ice, a 12 oz glass carries just 1.1 g net carbs and 7 calories, so it slots easily into a keto day. Keep an eye on how the sweeteners affect your own cravings, since that varies person to person.
Built by Barron Hansen · Last updated July 2026
Nutrition Facts
Fits My Daily Budget?
Set your daily net carb limit to see how one serving fits.
One serving uses 6% of your 20g daily budget.
Plan the rest of your day
Good to Know
Most major diet sodas (Diet Coke, Coke Zero, Diet Dr Pepper, Diet Mountain Dew) use aspartame, sucralose, or acesulfame potassium instead of sugar, which is why the carb count stays near zero. Check the label, though, because some flavored or regional versions sneak in a little juice or sugar and read "diet" loosely. If you are tracking sweetener tolerance, note that some people find these drinks trigger sweet cravings, so watch how you respond rather than counting on the macros alone.
Is Diet Soda Keto? The Full Answer
Diet Soda contains 1.10g net carbs per 12 oz (1.10g total carbs minus 0.00g fiber). Poured straight from the can over ice, a 12 oz glass carries just 1.1 g net carbs and 7 calories, so it slots easily into a keto day. Keep an eye on how the sweeteners affect your own cravings, since that varies person to person.
On a standard ketogenic diet, most people target 20-25g net carbs per day. A single serving uses 6% of a 20g daily carb limit. That makes Diet Soda a reliable keto staple.
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