Use in Moderation
Ketchup
4.60g net carbs per 1 tbsp
Squeezed straight from the bottle, a single tablespoon runs 4.6 g net carbs, mostly from added sugar, so the count climbs fast if you pour freely. Measure it out or look for a no-sugar-added version to keep your daily total in check.
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 23% of your 20g daily budget.
Plan the rest of your day
Good to Know
The carbs come almost entirely from added sugar, and many standard bottles list high-fructose corn syrup or sugar near the top of the ingredients. Look for sugar-free versions like Heinz No Sugar Added or Primal Kitchen, which cut the net carbs to around 1 g per tablespoon by using stevia or monk fruit. Watch restaurant packets and diner pours, since those are the easiest places to blow through several tablespoons on a burger or eggs.
Is Ketchup Keto? The Full Answer
Ketchup contains 4.60g net carbs per 1 tbsp (4.70g total carbs minus 0.10g fiber). Squeezed straight from the bottle, a single tablespoon runs 4.6 g net carbs, mostly from added sugar, so the count climbs fast if you pour freely. Measure it out or look for a no-sugar-added version to keep your daily total in check.
On a standard ketogenic diet, most people target 20-25g net carbs per day. A single serving uses 23% of a 20g daily carb limit. Track your portions carefully and account for other carbs in your meals.
Better Keto Swaps
Sugar-free ketchup like Primal Kitchen Unsweetened is the closest match, sweetened with monk fruit instead of sugar, and it lands around 1 g net carbs per tablespoon. When you want a richer, slow-cooked flavor, try a no-sugar-added marinara such as Rao's, which runs about 2 g net carbs for a couple of tablespoons and works well as a dip. Plain tomato paste thinned with water and a pinch of salt gives you that concentrated tomato punch for roughly 2 g net carbs per tablespoon, and you control everything that goes in.
Track Your Ketone Levels
The Keto-Mojo meter is the gold standard for confirming you're actually in ketosis. Know your numbers - don't guess.