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Tomato and onion Calories
Provides vitamin C and potassium
CALORIES
GI
POTASSIUM
FIBER
Tomato and onion Nutrition Facts
Selected: 100 g
33
KCAL / 100G
Carbs
7.1g
· 82%
Protein
1.1g
· 13%
Fat
0.2g
· 5%
Fiber
1.6g
Tomato and onion Vitamins & Minerals
Vitamins
Vitamin C
11mg · 12% DV
B6
0.12mg · 7% DV
Vitamin K
8µg · 7% DV
Folate
18µg · 5% DV
Minerals
Potassium ⭐
210mg · 6% DV
Phosphorus
28mg · 4% DV
Magnesium
11mg · 3% DV
Calcium
18mg · 2% DV
Tomato and onion Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Tomato and onion 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 and onion Contain Allergens?
No known major allergens
Which Diets Is Tomato and onion Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Tomato and onion 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 and onion
Tomato and onion — Frequently Asked Questions
Does cooking tomatoes and onions significantly reduce their nutritional value?
Brief cooking over moderate heat can make lycopene in tomatoes easier for the body to use. Very long cooking at high heat may reduce some heat-sensitive vitamins.
Why can tomatoes and onions worsen heartburn or reflux?
Tomatoes are naturally acidic, and onions contain fermentable carbohydrates that can trigger burning, bloating, or gas in sensitive people. Those with reflux or irritable bowel symptoms may do better with smaller portions and by checking their individual tolerance.
How can you make raw onion less sharp?
Soak chopped onion in cold water for 10 to 15 minutes to mellow its pungency. Drain and pat it dry before adding it to a salad so it does not make the dish watery.
What can you eat with tomatoes and onions to make a more filling meal?
Pair them with protein foods such as chickpeas, lentils, eggs, cheese, yogurt, or grilled chicken, plus a satisfying staple such as whole-grain bread. A little olive oil also helps absorb fat-soluble compounds from tomatoes.
Are tomatoes and onions better before or after a workout?
They can be part of a light pre-workout meal, although raw onion may cause stomach discomfort during exercise for some people. After training, they work well alongside a meal that contains both protein and carbohydrate.
Are tomatoes and onions too heavy to eat at night?
They are usually light foods, but raw onion and tomato can trigger indigestion or reflux when eaten late. If that happens, choose a smaller serving or use cooked onion in the evening.
How long do chopped tomatoes and onions keep in the fridge?
Store them in separate airtight containers and ideally use them the same day. Chopped onion is generally best within one to two days, while chopped tomato is best used within about one day because its texture declines quickly.
Can tomatoes and onions be frozen?
Yes, especially for cooked dishes and sauces. Once thawed, they become soft and watery, so they are better for soups, sauces, sautés, or egg dishes than for salads.
Can tomatoes and onions replace antibiotics when you are ill?
No. They can be part of a nutritious diet, but they do not treat bacterial infections and should not replace medical assessment or prescribed antibiotics.
Should people taking blood thinners be careful with tomatoes and onions?
Normal food portions are usually not a concern for most people, but concentrated onion supplements or extracts may affect bleeding risk. Anyone taking anticoagulant medication should ask a clinician or pharmacist before using such supplements.
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Nutrition data compiled from USDA FoodData Central and scientific sources.