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Onion vs. Tomato paste — In-Depth Nutrition Comparison

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How are onions and tomato paste different?

  • Tomato paste is higher than onions in copper, iron, vitamin A, vitamin E, potassium, vitamin B3, vitamin C, vitamin B2, fiber, and vitamin K.
  • Tomato paste covers your daily need for copper, 36% more than onions.
  • Tomato paste has a higher glycemic index (45) than onions (15).

Onions, raw and Tomato products, canned, paste, without salt added types were used in this article.

Infographic

Onion vs Tomato paste infographic
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Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Onion
1
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 7.1% 6.9% 13% 7.9% 13% 4.6% 12% 0.52% 17% 2.7%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 30% 11% 89% 112% 122% 17% 36% 7.7% 39% 29%
Contains less SodiumSodium -93.2%
Contains more MagnesiumMagnesium +320%
Contains more CalciumCalcium +56.5%
Contains more PotassiumPotassium +594.5%
Contains more IronIron +1319%
Contains more CopperCopper +835.9%
Contains more ZincZinc +270.6%
Contains more PhosphorusPhosphorus +186.2%
Contains more ManganeseManganese +134.1%
Contains more SeleniumSelenium +960%

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Onion
1
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 25% 0% 0.4% 0% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14% 3.3%
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 73% 25% 86% 0% 15% 35% 58% 8.5% 50% 0% 29% 9% 21%
Contains more FolateFolate +58.3%
Contains more Vitamin CVitamin C +195.9%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +21400%
Contains more Vitamin B1Vitamin B1 +30.4%
Contains more Vitamin B2Vitamin B2 +466.7%
Contains more Vitamin B3Vitamin B3 +2551.7%
Contains more Vitamin B5Vitamin B5 +15.4%
Contains more Vitamin B6Vitamin B6 +80%
Contains more Vitamin KVitamin K +2750%
Contains more CholineCholine +531.1%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Onion
1
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
4% 19% 74% 3%
Protein: 4.32 g
Fats: 0.47 g
Carbs: 18.91 g
Water: 73.5 g
Other: 2.8 g
Contains more WaterWater +21.2%
Contains more ProteinProtein +292.7%
Contains more FatsFats +370%
Contains more CarbsCarbs +102.5%
Contains more OtherOther +700%

Fat Type Comparison

Fat type breakdown side-by-side comparison
Onion
1
58% 18% 24%
Saturated fat: Sat. Fat 0.042 g
Monounsaturated fat: Mono. Fat 0.013 g
Polyunsaturated fat: Poly. Fat 0.017 g
31% 20% 49%
Saturated fat: Sat. Fat 0.1 g
Monounsaturated fat: Mono. Fat 0.067 g
Polyunsaturated fat: Poly. Fat 0.16 g
Contains less Sat. FatSaturated fat -58%
Contains more Mono. FatMonounsaturated fat +415.4%
Contains more Poly. FatPolyunsaturated fat +841.2%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Onion
1
23% 46% 30%
Starch: 0 g
Sucrose: 0.99 g
Glucose: 1.97 g
Fructose: 1.29 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
2% 2% 46% 47% 2%
Starch: 0.22 g
Sucrose: 0.3 g
Glucose: 5.75 g
Fructose: 5.85 g
Lactose: 0 g
Maltose: 0.28 g
Galactose: 0 g
Contains more SucroseSucrose +230%
Contains more StarchStarch +∞%
Contains more GlucoseGlucose +191.9%
Contains more FructoseFructose +353.5%
Contains more MaltoseMaltose +∞%
~equal in Lactose ~0g
~equal in Galactose ~0g

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Onion Tomato paste
Rich in minerals ok
Lower in price ok
Rich in vitamins ok
Lower in Sugar ok
Lower in Sodium ok
Lower in Saturated fat ok
Lower in Glycemic Index ok
Lower in Cholesterol Equal

All nutrients comparison - raw data values

Nutrient Onion Tomato paste DV% diff.
Copper 0.039mg 0.365mg 36%
Iron 0.21mg 2.98mg 35%
Vitamin E 0.02mg 4.3mg 29%
Potassium 146mg 1014mg 26%
Vitamin B3 0.116mg 3.076mg 19%
Vitamin C 7.4mg 21.9mg 16%
Vitamin B2 0.027mg 0.153mg 10%
Fiber 1.7g 4.1g 10%
Selenium 0.5µg 5.3µg 9%
Vitamin K 0.4µg 11.4µg 9%
Manganese 0.129mg 0.302mg 8%
Vitamin A 0µg 76µg 8%
Magnesium 10mg 42mg 8%
Phosphorus 29mg 83mg 8%
Vitamin B6 0.12mg 0.216mg 7%
Protein 1.1g 4.32g 6%
Choline 6.1mg 38.5mg 6%
Fructose 1.29g 5.85g 6%
Zinc 0.17mg 0.63mg 4%
Carbs 9.34g 18.91g 3%
Folate 19µg 12µg 2%
Calories 40kcal 82kcal 2%
Sodium 4mg 59mg 2%
Fats 0.1g 0.47g 1%
Polyunsaturated fat 0.017g 0.16g 1%
Vitamin B1 0.046mg 0.06mg 1%
Calcium 23mg 36mg 1%
Net carbs 7.64g 14.81g N/A
Sugar 4.24g 12.18g N/A
Starch 0g 0.22g 0%
Vitamin B5 0.123mg 0.142mg 0%
Saturated fat 0.042g 0.1g 0%
Monounsaturated fat 0.013g 0.067g 0%
Tryptophan 0.014mg 0.031mg 0%
Threonine 0.021mg 0.133mg 0%
Isoleucine 0.014mg 0.089mg 0%
Leucine 0.025mg 0.124mg 0%
Lysine 0.039mg 0.134mg 0%
Methionine 0.002mg 0.027mg 0%
Phenylalanine 0.025mg 0.13mg 0%
Valine 0.021mg 0.088mg 0%
Histidine 0.014mg 0.071mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Tomato paste
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet ok

People also compare

Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
8%
Onion
31%
Tomato paste
Minerals Daily Need Coverage Score
8%
Onion
49%
Tomato paste

Comparison summary

Which food is richer in minerals?
Tomato paste
Tomato paste is relatively richer in minerals
Which food is cheaper?
Tomato paste
Tomato paste is cheaper (difference - $0.2)
Which food is richer in vitamins?
Tomato paste
Tomato paste is relatively richer in vitamins
Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 7.94g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 55mg)
Which food is lower in Saturated fat?
Onion
Onion is lower in Saturated fat (difference - 0.058g)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 30)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)

References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/nutrients
  2. Tomato paste - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170459/nutrients

All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.