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  6. Onion vs. Sweet onion

Onion vs. Sweet onion — In-Depth Nutrition Comparison

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What are the main differences between onions and sweet onion?

  • Onions have 2 times more Fiber than sweet onion. Onions have 1.7g of Fiber, while sweet onion has 0.9g.

We used Onions, raw and Onions, sweet, raw types in this comparison.

Infographic

Onion vs Sweet 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
Onion
5
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 6.4% 6% 11% 9.8% 19% 3.5% 12% 1% 9.9% 2.7%
Contains more CalciumCalcium +15%
Contains more PotassiumPotassium +22.7%
Contains more ZincZinc +30.8%
Contains less SodiumSodium -50%
Contains more ManganeseManganese +69.7%
Contains more IronIron +23.8%
Contains more CopperCopper +43.6%
~equal in Magnesium ~9mg
~equal in Phosphorus ~27mg
~equal in Selenium ~0.5µg

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
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 25% 0.12% 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 16% 0.06% 0.4% 0% 10% 4.6% 2.5% 5.9% 30% 0% 0.75% 17% 3%
Contains more Vitamin CVitamin C +54.2%
Contains more Vitamin AVitamin A +100%
Contains more Vitamin B1Vitamin B1 +12.2%
Contains more Vitamin B2Vitamin B2 +35%
Contains more Vitamin B5Vitamin B5 +25.5%
Contains more Vitamin KVitamin K +33.3%
Contains more Vitamin B3Vitamin B3 +14.7%
Contains more FolateFolate +21.1%
~equal in Vitamin E ~0.02mg
~equal in Vitamin D ~0µg
~equal in Vitamin B6 ~0.13mg
~equal in Vitamin B12 ~µg
~equal in Choline ~5.5mg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Onion
Onion
4
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
8% 91%
Protein: 0.8 g
Fats: 0.08 g
Carbs: 7.55 g
Water: 91.24 g
Other: 0.33 g
Contains more ProteinProtein +37.5%
Contains more FatsFats +25%
Contains more CarbsCarbs +23.7%
~equal in Water ~91.24g
~equal in Other ~0.33g

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Onion
Onion
1
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
14% 45% 40%
Starch: 0 g
Sucrose: 0.72 g
Glucose: 2.26 g
Fructose: 2.02 g
Lactose: 0.02 g
Maltose: 0 g
Galactose: 0 g
Contains more SucroseSucrose +37.5%
Contains more GlucoseGlucose +14.7%
Contains more FructoseFructose +56.6%
Contains more LactoseLactose +∞%
~equal in Starch ~0g
~equal in Maltose ~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 Sweet onion
Lower in Saturated Fat ok
Lower in Glycemic Index ok
Lower in price ok
Lower in Sugar 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 Sweet onion Opinion
Calories 40kcal 32kcal Onion
Protein 1.1g 0.8g Onion
Fats 0.1g 0.08g Onion
Vitamin C 7.4mg 4.8mg Onion
Net carbs 7.64g 6.65g Onion
Carbs 9.34g 7.55g Onion
Magnesium 10mg 9mg Onion
Calcium 23mg 20mg Onion
Potassium 146mg 119mg Onion
Iron 0.21mg 0.26mg Sweet onion
Sugar 4.24g 5.02g Onion
Fiber 1.7g 0.9g Onion
Copper 0.039mg 0.056mg Sweet onion
Zinc 0.17mg 0.13mg Onion
Phosphorus 29mg 27mg Onion
Sodium 4mg 8mg Onion
Vitamin A 2IU 1IU Onion
Vitamin E 0.02mg 0.02mg
Manganese 0.129mg 0.076mg Onion
Selenium 0.5µg 0.5µg
Vitamin B1 0.046mg 0.041mg Onion
Vitamin B2 0.027mg 0.02mg Onion
Vitamin B3 0.116mg 0.133mg Sweet onion
Vitamin B5 0.123mg 0.098mg Onion
Vitamin B6 0.12mg 0.13mg Sweet onion
Vitamin K 0.4µg 0.3µg Onion
Folate 19µg 23µg Sweet onion
Choline 6.1mg 5.5mg Onion
Saturated Fat 0.042g Sweet onion
Monounsaturated Fat 0.013g Onion
Polyunsaturated fat 0.017g Onion
Tryptophan 0.014mg 0.009mg Onion
Threonine 0.021mg 0.018mg Onion
Isoleucine 0.014mg 0.014mg
Leucine 0.025mg 0.025mg
Lysine 0.039mg 0.033mg Onion
Methionine 0.002mg 0.009mg Sweet onion
Phenylalanine 0.025mg 0.024mg Onion
Valine 0.021mg 0.02mg Onion
Histidine 0.014mg 0.011mg Onion
Fructose 1.29g 2.02g Sweet onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion Sweet 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
7%
Sweet onion
Minerals Daily Need Coverage Score
8%
Onion
8%
Sweet onion

Comparison summary

Which food is lower in Saturated Fat?
Sweet onion
Sweet onion is lower in Saturated Fat (difference - 0.042g)
Which food is lower in glycemic index?
Sweet onion
Sweet onion is lower in glycemic index (difference - 15)
Which food is cheaper?
Sweet onion
Sweet onion is cheaper (difference - $0.2)
Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 0.78g)
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 4mg)
Which food is richer in minerals?
Onion
Onion is relatively richer in minerals
Which food is richer in vitamins?
Onion
Onion 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. Sweet onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170008/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.