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Canned tomatoes Calories
Convenient, ready to cook, source of vitamin C
CALORIES
GI
POTASSIUM
FIBER
Canned tomatoes Nutrition Facts
Selected: 100 g
21
KCAL / 100G
Carbs
4.2g
· 73%
Protein
1.1g
· 19%
Fat
0.2g
· 8%
Fiber
1.2g
Canned tomatoes Vitamins & Minerals
Vitamins
Vitamin C
11mg · 12% DV
Vitamin A
42µg · 5% DV
B6
0.08mg · 5% DV
Vitamin E
0.7mg · 5% DV
Minerals
Iron
1mg · 6% DV
Potassium ⭐
210mg · 6% DV
Sodium
120mg · 5% DV
Magnesium
11mg · 3% DV
Canned tomatoes Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Canned tomatoes Processed?
NOVA 3
Processed
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 Canned tomatoes Contain Allergens?
No known major allergens
Which Diets Is Canned tomatoes Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Canned tomatoes Fat Profile
SATURATED
0.03g
MONOUNSATURATED
0.03g
POLYUNSATURATED
0.04g
Omega 6:3 ratio 3:1
Below the ideal 4:1 — a good omega balance.
Foods Similar to Canned tomatoes
Canned tomatoes — Frequently Asked Questions
Can canned tomatoes replace fresh tomatoes in cooking?
Yes. They work especially well in soups, pasta sauces, stews, and other long-cooked dishes, though their flavor and texture are often more concentrated than fresh tomatoes.
Does cooking canned tomatoes reduce their nutritional value?
Long cooking can reduce some heat-sensitive vitamins. However, cooking tomatoes with a little fat can make lycopene, the red plant pigment, easier for the body to absorb.
Why do canned tomatoes sometimes taste metallic?
A metallic taste can develop when leftover tomatoes are stored in the opened can. Transfer leftovers to a covered glass or food-safe plastic container instead.
How long do opened canned tomatoes last in the fridge?
Once opened, transfer them to a clean sealed container and use within about 3 to 4 days. Discard them if you notice mold, fizzing, an off smell, or an unusual color.
Can you freeze canned tomatoes after opening?
Yes. Freeze leftovers in recipe-sized portions for later use. Their texture may become softer after thawing, but they remain suitable for sauces, soups, and cooked dishes.
Should you drain canned tomatoes before using them?
It depends on the recipe. Drain some liquid for a thicker sauce, or use it in soups, rice dishes, and braises where extra tomato flavor and moisture are useful.
What goes well with canned tomatoes?
Olive oil helps balance tomato acidity and supports absorption of lycopene from cooked tomatoes. Garlic, onion, basil, oregano, beans, lentils, and whole grains also pair well with them.
Are canned tomatoes less healthy than fresh tomatoes?
Not necessarily. Choose products with simple ingredients and check the label for added salt, sugar, or sauces; plain canned tomatoes can be a practical everyday option.
Should people with reflux be careful with canned tomatoes?
Yes. Tomato acidity can trigger heartburn or reflux symptoms in some people, particularly in larger portions or late-evening meals. Individual tolerance matters.
Is it safe to use a dented or swollen can of tomatoes?
Do not use cans that are swollen, leaking, badly dented, or damaged around the seam or lid. If the contents spray on opening, smell unpleasant, or look abnormal, discard them without tasting.
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Nutrition data compiled from USDA FoodData Central and scientific sources.