0 kcal 🥦 Vegetables and Vegetable Products
Calories in Tomato, roma
A fruit the US Supreme Court legally declared a vegetable — for tax purposes
22 kcal
What makes tomato so powerful?
Botanically, tomatoes are fruits, since they develop from a flower's ovary and contain seeds, but in 1893 the US Supreme Court ruled in Nix v. Hedden that tomatoes count as vegetables under tariff law, since that's how people use and eat them — a ruling still cited today as the classic case of culinary versus botanical classification. Tomatoes also do something unusual when cooked: heat increases the bioavailability of lycopene, the antioxidant responsible for their red color, by breaking down plant cell walls and making lycopene easier for the body to absorb — a rare case where cooking a vegetable can make it nutritionally better, not worse.
Legally a vegetable, botanically a fruit
An 1893 Supreme Court tariff ruling settled, legally, what tomatoes "are."
Cooking improves nutrition
Heat boosts how much lycopene the body can actually absorb, unlike most vegetables.
Lycopene's job
The same antioxidant responsible for the red color is linked in research to cardiovascular benefits.
💡 When & how to use it
Cook tomatoes with a bit of olive oil specifically to maximize lycopene absorption — both heat and fat improve uptake of this fat-soluble antioxidant. Tomato paste and sauce, being concentrated and cooked, often deliver more usable lycopene than fresh raw tomatoes.
Calories by Serving Size
100g
22 kcal
P 0.7g C 3.84g F 0.43g
1 RACC (85g)
19 kcal
P 0.6g C 3.3g F 0.4g
200g
44 kcal
P 1.4g C 7.7g F 0.9g
50g
11 kcal
P 0.4g C 1.9g F 0.2g
Full Nutrition Facts
Per 100g — daily values based on a 2,000 calorie diet
Nutrition Facts
Serving size: 100g
Calories 22
% Daily Value*
Total Fat 0.43g 1%
Sodium 0mg 0%
Total Carbohydrate 3.84g 1%
Dietary Fiber 0.97g 3%
Protein 0.7g 1%
Vitamin C 17.8mg 20%
Calcium 9.96mg 1%
Iron 0.1mg 1%
Potassium 193mg 4%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
How does Tomato fit your daily goals?
4 min
Walking to burn 22 kcal
1%
of 2,000 kcal daily goal
0.7g
protein (1% of daily 50g)
91
servings until 2,000 kcal
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Frequently Asked Questions
How many calories are in Tomato, roma?
Tomato, roma contains 22 calories per 100g. A standard serving of 1 RACC (85g) provides 19 calories. It is considered a very low-calorie food (under 50 kcal/100g), making it excellent for weight management.
How much protein does Tomato, roma have?
Tomato, roma provides 0.7g of protein per 100g, which is 1% of the 50g daily recommended value. It is not a primary protein source.
How many carbs are in Tomato, roma?
Tomato, roma contains 3.84g of carbohydrates per 100g . It also provides 0.97g of dietary fiber.
Is Tomato, roma good for weight loss?
Yes! Tomato, roma is very low in calories (22 kcal/100g) and can be eaten in generous portions even on a calorie-restricted diet.
How do I track Tomato, roma calories accurately?
The easiest way to track tomato is with CalRay. Simply snap a photo of your meal and the AI will automatically identify the food and calculate calories and macros based on the estimated portion size — no manual lookup required. You can also search by name and adjust gram weight manually.
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