Regular ketchup is carbohydrate-dense compared with many unsweetened condiments. Measure the amount rather than treating a bottle serving as negligible. The published reference is 27.1g net carbs per 100 g.
Is Ketchup (Regular) Keto?

YOUR PORTION
How much are you having?
Per 100 g (Catsup). USDA FoodData Central.
Scales this reference to your portion, with no extra deductions. Calculation and units.
27.1gnet carbs in your portion
- Total carbs
- 27.4g
- Fiber
- 0.3g
- Protein
- 1g
- Fat
- 0.1g
- Calories
- 101
The 100 g reference amount has 27.1g net carbs, so keep portions small or choose a lower-carb swap.
- Net carbs (100 g)27.1g
- Protein (100 g)1g
- Fat (100 g)0.1g
- Keto verdictLimit portions
NUTRITION FACTS
Per 100 g (Catsup)
Source: USDA FoodData Central reference record
Source fit: generic reference; variety, brand, or preparation may differ
Net-carb calculation: total carbohydrate - fiber
Generic reference: Catsup. September 2026 arithmetic review used the existing USDA snapshot accessed 2026-07-09; it was not a fresh branded-product label check.
Nutrition record reviewed 2026-09-05. Maintained by KetoLens Team.
WHY TO LIMIT IT ON KETO
- Compare Ketchup (Sugar-Free) using the current bottle label; its name alone does not establish total carbohydrate.
PREPARATION SUGGESTIONS
TINY TASTE
Use a few drops only, then balance with mustard or Mayonnaise to keep carbs minimal.
BLEND-DOWN SAUCE
Dilute 1 tsp ketchup with vinegar and spices to stretch flavor across multiple servings.
HOMEMADE LOW-CARB
Make ketchup with tomato paste, Apple Cider Vinegar, spices, and Allulose (Sugar Substitute) as a keto sweetener.
MIX & SWAP
Combine a touch of regular ketchup with Ketchup (Sugar-Free) to reduce carbs while keeping flavor.