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Tomato Calories
Rich in lycopene and vitamin C
CALORIES
GI
POTASSIUM
FIBER
Tomato Nutrition Facts
Selected: 100 g
18
KCAL / 100G
Carbs
3.9g
· 74%
Protein
0.9g
· 17%
Fat
0.2g
· 9%
Fiber
1.2g
Tomato Vitamins & Minerals
Vitamins
Vitamin C
13.7mg · 15% DV
Biotin
4µg · 13% DV
Vitamin K
7.9µg · 7% DV
Vitamin A
42µg · 5% DV
Minerals
Potassium ⭐
237mg · 7% DV
Magnesium
11mg · 3% DV
Phosphorus
24mg · 3% DV
Calcium
10mg · 1% DV
Tomato Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Tomato Processed?
NOVA 1
Unprocessed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Tomato Contain Allergens?
No known major allergens
Which Diets Is Tomato Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
Tomato Fat Profile
SATURATED
0.03g
MONOUNSATURATED
0.03g
POLYUNSATURATED
0.09g
Omega 6:3 ratio 8:1
Above the ideal 4:1 (8:1).
Foods Similar to Tomato
Tomato — Frequently Asked Questions
How can sliced tomato stay fresh for longer?
Keep sliced tomato in a sealed container in the refrigerator and ideally use it within 1–2 days. Whole tomatoes generally keep their best flavor at room temperature, away from direct sunlight.
Can sliced tomato be frozen?
Yes, but it becomes soft and watery after thawing, so it is not ideal for salads. Frozen tomato works better in soups, sauces, stews, or egg dishes.
Does refrigerating tomatoes affect their flavor?
Cold storage can dull the aroma and alter the texture of whole, unripe tomatoes. Once a tomato has been cut, however, it should be refrigerated for food safety.
Why do some tomatoes taste sour or bitter?
Flavor varies with the variety, ripeness, growing conditions, and harvest timing. Firmer, less-ripe tomatoes often taste more tart, while ripening at room temperature can mellow their flavor.
Do you need to peel tomatoes before eating them?
No. The skin is fine to eat in salads and sandwiches. Peeling is mainly useful for very smooth sauces or for people who find tomato skins hard to digest.
Why is tomato often eaten with olive oil?
Tomatoes contain lycopene, a compound that is absorbed more effectively when eaten with some dietary fat. Adding a little olive oil to a tomato salad can therefore improve lycopene absorption.
Are cooked tomatoes healthier than raw tomatoes?
Both can be part of a healthy diet. Cooking can make lycopene easier for the body to use, while prolonged high heat may reduce some heat-sensitive vitamins.
Is tomato better before or after a workout?
Tomato alone is not a complete workout meal, but it can fit into a light pre-workout meal if it feels comfortable to digest. After exercise, add it to a meal that also provides protein and carbohydrate, such as a sandwich, grain bowl, or egg dish.
Should people with reflux be careful with tomatoes?
Yes. Tomato’s acidity can trigger heartburn or reflux symptoms in some people, especially in larger amounts or late in the evening. Individual tolerance is the best guide.
Does eating tomato and cucumber together reduce their nutrition?
No reliable evidence shows that combining tomato and cucumber meaningfully reduces their nutritional value. Eating them together is a simple way to add variety, crunch, and different plant compounds to a meal.
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Nutrition data compiled from USDA FoodData Central and scientific sources.