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Onion vs. Welsh onion — In-Depth Nutrition Comparison

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A recap on differences between onions and welsh onion

  • Onions have less vitamin K, vitamin A, vitamin C, and iron.
  • Welsh onion covers your daily vitamin K needs 161% more than onions.
  • Welsh onion contains 2 times less sugar than onions. Onions contain 4.24g of sugar, while welsh onion contains 2.18g.
  • The glycemic index of welsh onion is higher.

Food varieties used in this article are Onions, raw and Onions, welsh, raw.

Infographic

Onion vs Welsh 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.
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%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 16% 5.4% 19% 46% 23% 14% 21% 2.2% 18% 3.3%
Contains more CalciumCalcium +27.8%
Contains less SodiumSodium -76.5%
Contains more MagnesiumMagnesium +130%
Contains more PotassiumPotassium +45.2%
Contains more IronIron +481%
Contains more CopperCopper +79.5%
Contains more ZincZinc +205.9%
Contains more PhosphorusPhosphorus +69%
Contains more SeleniumSelenium +20%
~equal in Manganese ~0.137mg

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
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 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 90% 0% 10% 0% 13% 21% 7.5% 10% 17% 0% 484% 12% 2.9%
Contains more Vitamin B6Vitamin B6 +66.7%
Contains more FolateFolate +18.8%
Contains more CholineCholine +15.1%
Contains more Vitamin CVitamin C +264.9%
Contains more Vitamin EVitamin E +2450%
Contains more Vitamin B2Vitamin B2 +233.3%
Contains more Vitamin B3Vitamin B3 +244.8%
Contains more Vitamin B5Vitamin B5 +37.4%
Contains more Vitamin KVitamin K +48250%
~equal in Vitamin A ~µg
~equal in Vitamin D ~0µg
~equal in Vitamin B1 ~0.05mg
~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
2% 7% 91%
Protein: 1.9 g
Fats: 0.4 g
Carbs: 6.5 g
Water: 90.5 g
Other: 0.7 g
Contains more CarbsCarbs +43.7%
Contains more ProteinProtein +72.7%
Contains more FatsFats +300%
Contains more OtherOther +100%
~equal in Water ~90.5g

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
24% 20% 56%
Saturated fat: Sat. Fat 0.067 g
Monounsaturated fat: Mono. Fat 0.056 g
Polyunsaturated fat: Poly. Fat 0.156 g
Contains less Sat. FatSaturated fat -37.3%
Contains more Mono. FatMonounsaturated fat +330.8%
Contains more Poly. FatPolyunsaturated fat +817.6%

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Onion Welsh onion DV% diff.
Vitamin K 0.4µg 193.4µg 161%
Vitamin C 7.4mg 27mg 22%
Iron 0.21mg 1.22mg 13%
Vitamin B2 0.027mg 0.09mg 5%
Vitamin B6 0.12mg 0.072mg 4%
Zinc 0.17mg 0.52mg 3%
Magnesium 10mg 23mg 3%
Vitamin E 0.02mg 0.51mg 3%
Phosphorus 29mg 49mg 3%
Fiber 1.7g 2.4g 3%
Copper 0.039mg 0.07mg 3%
Vitamin B3 0.116mg 0.4mg 2%
Protein 1.1g 1.9g 2%
Fructose 1.29g 2%
Potassium 146mg 212mg 2%
Polyunsaturated fat 0.017g 0.156g 1%
Sodium 4mg 17mg 1%
Folate 19µg 16µg 1%
Calcium 23mg 18mg 1%
Carbs 9.34g 6.5g 1%
Vitamin B5 0.123mg 0.169mg 1%
Calories 40kcal 34kcal 0%
Fats 0.1g 0.4g 0%
Net carbs 7.64g 4.1g N/A
Sugar 4.24g 2.18g N/A
Selenium 0.5µg 0.6µg 0%
Manganese 0.129mg 0.137mg 0%
Vitamin B1 0.046mg 0.05mg 0%
Choline 6.1mg 5.3mg 0%
Saturated fat 0.042g 0.067g 0%
Monounsaturated fat 0.013g 0.056g 0%
Tryptophan 0.014mg 0.021mg 0%
Threonine 0.021mg 0.074mg 0%
Isoleucine 0.014mg 0.081mg 0%
Leucine 0.025mg 0.113mg 0%
Lysine 0.039mg 0.095mg 0%
Methionine 0.002mg 0.021mg 0%
Phenylalanine 0.025mg 0.061mg 0%
Valine 0.021mg 0.084mg 0%
Histidine 0.014mg 0.033mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Welsh onion
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
51%
Welsh onion
Minerals Daily Need Coverage Score
8%
Onion
17%
Welsh onion

Comparison summary

Which food is richer in minerals?
Welsh onion
Welsh onion is relatively richer in minerals
Which food is lower in Sugar?
Welsh onion
Welsh onion is lower in Sugar (difference - 2.06g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 13mg)
Which food is lower in Saturated fat?
Onion
Onion is lower in Saturated fat (difference - 0.025g)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 24)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is cheaper?
?
The foods are relatively equal in price ($0.2)
Which food is richer in vitamins?
?
It cannot be stated which food is richer in vitamins. See the charts below for detailed information. See the charts below for detailed information. See the charts below for detailed information.

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. Welsh onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170007/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.