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Leek vs. Welsh onion — In-Depth Nutrition Comparison

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How are Leek and Welsh onion different?

  • Leek is higher in Manganese, Vitamin B6, Folate, Iron, and Copper, however, Welsh onion is richer in Vitamin K, and Vitamin C.
  • Daily need coverage for Vitamin K from Welsh onion is 122% higher.
  • Leek contains 4 times more Folate than Welsh onion. While Leek contains 64µg of Folate, Welsh onion contains only 16µg.

Leeks, (bulb and lower leaf-portion), raw and Onions, welsh, raw are the varieties used in this article.

Infographic

Leek vs Welsh onion 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.
Leek
6
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 20% 18% 16% 79% 40% 3.3% 15% 2.6% 63% 5.5%
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 MagnesiumMagnesium +21.7%
Contains more CalciumCalcium +227.8%
Contains more IronIron +72.1%
Contains more CopperCopper +71.4%
Contains more ManganeseManganese +251.1%
Contains more SeleniumSelenium +66.7%
Contains more PotassiumPotassium +17.8%
Contains more ZincZinc +333.3%
Contains more PhosphorusPhosphorus +40%
Contains less SodiumSodium -15%

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.
Leek
6
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 40% 100% 18% 0% 15% 6.9% 7.5% 8.4% 54% 0% 118% 48% 5.2%
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% 70% 10% 0% 13% 21% 7.5% 10% 17% 0% 484% 12% 2.9%
Contains more Vitamin AVitamin A +43.7%
Contains more Vitamin EVitamin E +80.4%
Contains more Vitamin B1Vitamin B1 +20%
Contains more Vitamin B6Vitamin B6 +223.6%
Contains more FolateFolate +300%
Contains more CholineCholine +79.2%
Contains more Vitamin CVitamin C +125%
Contains more Vitamin B2Vitamin B2 +200%
Contains more Vitamin B5Vitamin B5 +20.7%
Contains more Vitamin KVitamin K +311.5%
~equal in Vitamin D ~0µg
~equal in Vitamin B3 ~0.4mg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Leek
2
14% 83%
Protein: 1.5 g
Fats: 0.3 g
Carbs: 14.15 g
Water: 83 g
Other: 1.05 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 +117.7%
Contains more OtherOther +50%
Contains more ProteinProtein +26.7%
Contains more FatsFats +33.3%
~equal in Water ~90.5g

Fat Type Comparison

Fat type breakdown side-by-side comparison
Leek
2
19% 2% 79%
Saturated Fat: Sat. Fat 0.04 g
Monounsaturated Fat: Mono. Fat 0.004 g
Polyunsaturated fat: Poly. Fat 0.166 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 -40.3%
Contains more Mono. FatMonounsaturated Fat +1300%
~equal in Polyunsaturated fat ~0.156g

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Leek Welsh onion Opinion
Calories 61kcal 34kcal Leek
Protein 1.5g 1.9g Welsh onion
Fats 0.3g 0.4g Welsh onion
Vitamin C 12mg 27mg Welsh onion
Net carbs 12.35g 4.1g Leek
Carbs 14.15g 6.5g Leek
Magnesium 28mg 23mg Leek
Calcium 59mg 18mg Leek
Potassium 180mg 212mg Welsh onion
Iron 2.1mg 1.22mg Leek
Sugar 3.9g 2.18g Welsh onion
Fiber 1.8g 2.4g Welsh onion
Copper 0.12mg 0.07mg Leek
Zinc 0.12mg 0.52mg Welsh onion
Phosphorus 35mg 49mg Welsh onion
Sodium 20mg 17mg Welsh onion
Vitamin A 1667IU 1160IU Leek
Vitamin A 83µg Leek
Vitamin E 0.92mg 0.51mg Leek
Manganese 0.481mg 0.137mg Leek
Selenium 1µg 0.6µg Leek
Vitamin B1 0.06mg 0.05mg Leek
Vitamin B2 0.03mg 0.09mg Welsh onion
Vitamin B3 0.4mg 0.4mg
Vitamin B5 0.14mg 0.169mg Welsh onion
Vitamin B6 0.233mg 0.072mg Leek
Vitamin K 47µg 193.4µg Welsh onion
Folate 64µg 16µg Leek
Choline 9.5mg 5.3mg Leek
Saturated Fat 0.04g 0.067g Leek
Monounsaturated Fat 0.004g 0.056g Welsh onion
Polyunsaturated fat 0.166g 0.156g Leek
Tryptophan 0.012mg 0.021mg Welsh onion
Threonine 0.063mg 0.074mg Welsh onion
Isoleucine 0.052mg 0.081mg Welsh onion
Leucine 0.096mg 0.113mg Welsh onion
Lysine 0.078mg 0.095mg Welsh onion
Methionine 0.018mg 0.021mg Welsh onion
Phenylalanine 0.055mg 0.061mg Welsh onion
Valine 0.056mg 0.084mg Welsh onion
Histidine 0.025mg 0.033mg Welsh onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Leek 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
32%
Leek
57%
Welsh onion
Minerals Daily Need Coverage Score
26%
Leek
17%
Welsh onion

Comparison summary

Which food is lower in Sugar?
Welsh onion
Welsh onion is lower in Sugar (difference - 1.72g)
Which food contains less Sodium?
Welsh onion
Welsh onion contains less Sodium (difference - 3mg)
Which food is cheaper?
Welsh onion
Welsh onion is cheaper (difference - $0.2)
Which food is lower in Saturated Fat?
Leek
Leek is lower in Saturated Fat (difference - 0.027g)
Which food is lower in glycemic index?
Leek
Leek is lower in glycemic index (difference - 7)
Which food is richer in minerals?
Leek
Leek is relatively richer in minerals
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
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. Leek - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169246/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.