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Onion vs. Corn — In-Depth Nutrition Comparison

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Significant differences between Onion and Corn

  • The amount of Vitamin B5, Vitamin B3, Phosphorus, and Polyunsaturated fat in Corn is higher than in Onion.
  • Corn covers your daily Vitamin B5 needs 13% more than Onion.

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
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
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
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% 0.12% 0.4% 0% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14% 3.3%
Corn
9
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 18% 16% 1.8% 0% 23% 13% 32% 48% 32% 0% 1% 17% 16%
Contains more Vitamin CVitamin C +34.5%
Contains more Vitamin AVitamin A +13050%
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 CholineCholine +377%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg
~equal in Vitamin K ~0.4µg

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
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
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
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
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
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

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Onion Corn Opinion
Calories 40kcal 96kcal Corn
Protein 1.1g 3.41g Corn
Fats 0.1g 1.5g Corn
Vitamin C 7.4mg 5.5mg Onion
Net carbs 7.64g 18.58g Corn
Carbs 9.34g 20.98g Corn
Magnesium 10mg 26mg Corn
Calcium 23mg 3mg Onion
Potassium 146mg 218mg Corn
Iron 0.21mg 0.45mg Corn
Sugar 4.24g 4.54g Onion
Fiber 1.7g 2.4g Corn
Copper 0.039mg 0.049mg Corn
Zinc 0.17mg 0.62mg Corn
Starch 0g 7.17g Corn
Phosphorus 29mg 77mg Corn
Sodium 4mg 1mg Corn
Vitamin A 2IU 263IU Corn
Vitamin A 0µg 13µg Corn
Vitamin E 0.02mg 0.09mg Corn
Manganese 0.129mg 0.167mg Corn
Selenium 0.5µg 0.2µg Onion
Vitamin B1 0.046mg 0.093mg Corn
Vitamin B2 0.027mg 0.057mg Corn
Vitamin B3 0.116mg 1.683mg Corn
Vitamin B5 0.123mg 0.792mg Corn
Vitamin B6 0.12mg 0.139mg Corn
Vitamin K 0.4µg 0.4µg
Folate 19µg 23µg Corn
Choline 6.1mg 29.1mg Corn
Saturated Fat 0.042g 0.197g Onion
Monounsaturated Fat 0.013g 0.374g Corn
Polyunsaturated fat 0.017g 0.603g Corn
Tryptophan 0.014mg 0.023mg Corn
Threonine 0.021mg 0.133mg Corn
Isoleucine 0.014mg 0.133mg Corn
Leucine 0.025mg 0.358mg Corn
Lysine 0.039mg 0.141mg Corn
Methionine 0.002mg 0.069mg Corn
Phenylalanine 0.025mg 0.155mg Corn
Valine 0.021mg 0.191mg Corn
Histidine 0.014mg 0.091mg Corn
Fructose 1.29g 0.79g Onion

Which food is preferable for your diet?

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

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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
17%
Corn
Minerals Daily Need Coverage Score
8%
Onion
14%
Corn

Comparison summary

Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 0.3g)
Which food is lower in Saturated Fat?
Onion
Onion is lower in Saturated Fat (difference - 0.155g)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 37)
Which food is cheaper?
Onion
Onion is cheaper (difference - $1)
Which food contains less Sodium?
Corn
Corn contains less Sodium (difference - 3mg)
Which food is richer in minerals?
Corn
Corn is relatively richer in minerals
Which food is richer in vitamins?
Corn
Corn is relatively richer in vitamins
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. 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.