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Corn vs. Onion — In-Depth Nutrition Comparison

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Significant differences between corn and onions

  • 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.
  • Onions have 132 times less vitamin A than corn. Corn has 263 IU of vitamin A, while onions have 2 IU.
  • 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 Corn, sweet, yellow, cooked, boiled, drained, without salt and Onions, raw.

Infographic

Corn vs Onion 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.
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%
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%
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%
Contains more CalciumCalcium +666.7%
Contains more SeleniumSelenium +150%

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.
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%
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%
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%
Contains more Vitamin CVitamin C +34.5%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg
~equal in Vitamin K ~0.4µg

All nutrients comparison - raw data values

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

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
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
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
Contains more ProteinProtein +210%
Contains more FatsFats +1400%
Contains more CarbsCarbs +124.6%
Contains more OtherOther +100%
Contains more WaterWater +21.4%

Fat Type Comparison

Fat type breakdown side-by-side comparison
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
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
Contains more Mono. FatMonounsaturated fat +2776.9%
Contains more Poly. FatPolyunsaturated fat +3447.1%
Contains less Sat. FatSaturated fat -78.7%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
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
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
Contains more StarchStarch +∞%
Contains more SucroseSucrose +176.8%
Contains more MaltoseMaltose +∞%
Contains more GlucoseGlucose +134.5%
Contains more FructoseFructose +63.3%
~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. Corn - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169999/nutrients
  2. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/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.