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Onion vs. Corn — In-Depth Nutrition Comparison

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Significant differences between onions and corn

  • The amount of vitamin B5, vitamin B3, phosphorus, vitamin A, and polyunsaturated fat in corn is higher than in onions.
  • Corn covers your daily vitamin B5 needs 13% more than onions.
  • Corn has a higher glycemic index. The glycemic index of corn is 52, while the glycemic index of onions is 15.

Specific food types used in this comparison are Onions, raw and Corn, sweet, yellow, cooked, boiled, drained, without salt.

Infographic

Onion vs Corn infographic
Infographic link

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
Onion
2
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%
Corn
Corn
8
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 19% 0.9% 19% 17% 16% 17% 33% 0.13% 22% 1.1%
Contains more CalciumCalcium +666.7%
Contains more SeleniumSelenium +150%
Contains more MagnesiumMagnesium +160%
Contains more PotassiumPotassium +49.3%
Contains more IronIron +114.3%
Contains more CopperCopper +25.6%
Contains more ZincZinc +264.7%
Contains more PhosphorusPhosphorus +165.5%
Contains less SodiumSodium -75%
Contains more ManganeseManganese +29.5%

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
Onion
1
Vitamin C Vit. C Vitamin D Vit. D Vitamin A Vit. A Vitamin E Vit. E 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 25% 0% 0% 0.4% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14%
Corn
Corn
8
Vitamin C Vit. C Vitamin D Vit. D Vitamin A Vit. A Vitamin E Vit. E 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 18% 0% 4.3% 1.8% 23% 13% 32% 48% 32% 0% 1% 17%
Contains more Vitamin CVitamin C +34.5%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +350%
Contains more Vitamin B1Vitamin B1 +102.2%
Contains more Vitamin B2Vitamin B2 +111.1%
Contains more Vitamin B3Vitamin B3 +1350.9%
Contains more Vitamin B5Vitamin B5 +543.9%
Contains more Vitamin B6Vitamin B6 +15.8%
Contains more FolateFolate +21.1%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg
~equal in Vitamin K ~0.4µg

All nutrients comparison - raw data values

Nutrient Onion Corn DV% diff.
Vitamin B5 0.123mg 0.792mg 13%
Vitamin B3 0.116mg 1.683mg 10%
Phosphorus 29mg 77mg 7%
Protein 1.1g 3.41g 5%
Carbs 9.34g 20.98g 4%
Magnesium 10mg 26mg 4%
Zinc 0.17mg 0.62mg 4%
Vitamin B1 0.046mg 0.093mg 4%
Choline 6.1mg 29.1mg 4%
Polyunsaturated fat 0.017g 0.603g 4%
Calories 40kcal 96kcal 3%
Iron 0.21mg 0.45mg 3%
Fiber 1.7g 2.4g 3%
Starch 0g 7.17g 3%
Fats 0.1g 1.5g 2%
Vitamin C 7.4mg 5.5mg 2%
Calcium 23mg 3mg 2%
Potassium 146mg 218mg 2%
Manganese 0.129mg 0.167mg 2%
Vitamin B2 0.027mg 0.057mg 2%
Copper 0.039mg 0.049mg 1%
Vitamin A 0µg 13µg 1%
Selenium 0.5µg 0.2µg 1%
Vitamin B6 0.12mg 0.139mg 1%
Folate 19µg 23µg 1%
Saturated fat 0.042g 0.197g 1%
Monounsaturated fat 0.013g 0.374g 1%
Fructose 1.29g 0.79g 1%
Protein per 100 calories 2.8g 3.6g N/A
Calories per 10 g protein 364kcal 282kcal N/A
Weight per 100 calories 250g 104g N/A
Net carbs 7.64g 18.58g N/A
Sugar 4.24g 4.54g N/A
Sodium 4mg 1mg 0%
Vitamin E 0.02mg 0.09mg 0%
Vitamin K 0.4µg 0.4µg 0%
Tryptophan 0.014mg 0.023mg 0%
Threonine 0.021mg 0.133mg 0%
Isoleucine 0.014mg 0.133mg 0%
Leucine 0.025mg 0.358mg 0%
Lysine 0.039mg 0.141mg 0%
Methionine 0.002mg 0.069mg 0%
Phenylalanine 0.025mg 0.155mg 0%
Valine 0.021mg 0.191mg 0%
Histidine 0.014mg 0.091mg 0%

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Onion
Onion
1
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
Corn
Corn
4
3% 21% 73%
Protein: 3.41 g
Fats: 1.5 g
Carbs: 20.98 g
Water: 73.41 g
Other: 0.7 g
Contains more WaterWater +21.4%
Contains more ProteinProtein +210%
Contains more FatsFats +1400%
Contains more CarbsCarbs +124.6%
Contains more OtherOther +100%

Fat Type Comparison

Fat type breakdown side-by-side comparison
Onion
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
Corn
Corn
2
17% 32% 51%
Saturated fat: Sat. Fat 0.197 g
Monounsaturated fat: Mono. Fat 0.374 g
Polyunsaturated fat: Poly. Fat 0.603 g
Contains less Sat. FatSaturated fat -78.7%
Contains more Mono. FatMonounsaturated fat +2776.9%
Contains more Poly. FatPolyunsaturated fat +3447.1%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Onion
Onion
2
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
Corn
Corn
3
61% 23% 7% 7%
Starch: 7.17 g
Sucrose: 2.74 g
Glucose: 0.84 g
Fructose: 0.79 g
Lactose: 0 g
Maltose: 0.17 g
Galactose: 0 g
Contains more GlucoseGlucose +134.5%
Contains more FructoseFructose +63.3%
Contains more StarchStarch +∞%
Contains more SucroseSucrose +176.8%
Contains more MaltoseMaltose +∞%
~equal in Lactose ~0g
~equal in Galactose ~0g

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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. Corn - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169999/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.