Keto Approved
Tomato
3.30g net carbs per 1 medium tomato
Juicy and bright, one medium tomato lands at 3.3 g net carbs, so it slips into a keto day with room to spare. Slice it over a salad or layer it on a burger lettuce wrap and you stay well inside your carb budget.
By MeKeto Editorial · 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 16% of your 20g daily budget.
Plan the rest of your day
Good to Know
Cherry and grape tomatoes carry slightly more sugar per bite, so count them if you graze on a handful. Watch the processed stuff: canned tomato sauce and ketchup often hide added sugar, and a single tablespoon of standard ketchup can run about 4 g of carbs, more than a whole fresh tomato. Sun-dried tomatoes concentrate the sugars too, so a small jarred portion adds up faster than you might expect.
Is Tomato Keto? The Full Answer
Tomato contains 3.30g net carbs per 1 medium tomato (4.80g total carbs minus 1.50g fiber). Juicy and bright, one medium tomato lands at 3.3 g net carbs, so it slips into a keto day with room to spare. Slice it over a salad or layer it on a burger lettuce wrap and you stay well inside your carb budget.
On a standard ketogenic diet, most people target 20-25g net carbs per day. A single serving uses 16% of a 20g daily carb limit. That makes Tomato a reliable keto staple.
Measure Your Ketone Levels
A blood ketone meter reads beta-hydroxybutyrate from a finger prick, the marker that defines nutritional ketosis at 0.5 to 3.0 mmol/L. Urine strips measure acetoacetate instead, which drops off once you are fat-adapted. Keto-Mojo makes a blood meter.
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