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Russet potato vs. Onion — In-Depth Nutrition Comparison

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How are russet potatoes and onions different?

  • Russet potatoes are higher than onions in vitamin B6, potassium, iron, vitamin B3, copper, phosphorus, and vitamin B5.
  • Russet potatoes cover your daily need for vitamin B6, 18% more than onions.
  • Russet potatoes contain 12 times more vitamin B3 than onions. Russet potatoes contain 1.348mg of vitamin B3, while onions contain 0.116mg.
  • Russet potatoes have a higher glycemic index (82) than onions (15).

Potatoes, Russet, flesh and skin, baked and Onions, raw types were used in this article.

Infographic

Russet potato vs 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.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 21% 5.4% 49% 40% 36% 9.5% 30% 1.8% 30% 2.7%
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 +200%
Contains more PotassiumPotassium +276.7%
Contains more IronIron +409.5%
Contains more CopperCopper +174.4%
Contains more ZincZinc +105.9%
Contains more PhosphorusPhosphorus +144.8%
Contains more ManganeseManganese +76.7%
Contains more CalciumCalcium +27.8%
Contains less SodiumSodium -71.4%
~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.
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 28% 0.33% 1.4% 0% 17% 11% 25% 23% 82% 0% 5% 20% 8.2%
Onion
0
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%
Contains more Vitamin CVitamin C +12.2%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +250%
Contains more Vitamin B1Vitamin B1 +45.7%
Contains more Vitamin B2Vitamin B2 +77.8%
Contains more Vitamin B3Vitamin B3 +1062.1%
Contains more Vitamin B5Vitamin B5 +208.9%
Contains more Vitamin B6Vitamin B6 +195%
Contains more Vitamin KVitamin K +400%
Contains more FolateFolate +36.8%
Contains more CholineCholine +145.9%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
3% 21% 74%
Protein: 2.63 g
Fats: 0.13 g
Carbs: 21.44 g
Water: 74.45 g
Other: 1.35 g
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 +139.1%
Contains more FatsFats +30%
Contains more CarbsCarbs +129.6%
Contains more OtherOther +285.7%
Contains more WaterWater +19.7%

Fat Type Comparison

Fat type breakdown side-by-side comparison
36% 3% 61%
Saturated fat: Sat. Fat 0.032 g
Monounsaturated fat: Mono. Fat 0.003 g
Polyunsaturated fat: Poly. Fat 0.054 g
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 less Sat. FatSaturated fat -23.8%
Contains more Poly. FatPolyunsaturated fat +217.6%
Contains more Mono. FatMonounsaturated fat +333.3%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
94% 2% 2% 2%
Starch: 17.45 g
Sucrose: 0.39 g
Glucose: 0.37 g
Fructose: 0.32 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
Onion
3
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 +153.8%
Contains more GlucoseGlucose +432.4%
Contains more FructoseFructose +303.1%
~equal in Lactose ~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.
Russet potato Onion
Lower in Sugar ok
Lower in Saturated fat ok
Lower in price ok
Rich in minerals ok
Rich in vitamins ok
Lower in Sodium ok
Lower in Glycemic Index ok
Lower in Cholesterol Equal

All nutrients comparison - raw data values

Nutrient Russet potato Onion DV% diff.
Vitamin B6 0.354mg 0.12mg 18%
Potassium 550mg 146mg 12%
Iron 1.07mg 0.21mg 11%
Vitamin B3 1.348mg 0.116mg 8%
Copper 0.107mg 0.039mg 8%
Starch 17.45g 0g 7%
Phosphorus 71mg 29mg 6%
Magnesium 30mg 10mg 5%
Vitamin B5 0.38mg 0.123mg 5%
Manganese 0.228mg 0.129mg 4%
Carbs 21.44g 9.34g 4%
Calories 97kcal 40kcal 3%
Protein 2.63g 1.1g 3%
Choline 15mg 6.1mg 2%
Folate 26µg 19µg 2%
Vitamin B2 0.048mg 0.027mg 2%
Vitamin B1 0.067mg 0.046mg 2%
Zinc 0.35mg 0.17mg 2%
Fiber 2.3g 1.7g 2%
Fructose 0.32g 1.29g 1%
Calcium 18mg 23mg 1%
Vitamin K 2µg 0.4µg 1%
Vitamin C 8.3mg 7.4mg 1%
Fats 0.13g 0.1g 0%
Net carbs 19.14g 7.64g N/A
Sugar 1.08g 4.24g N/A
Sodium 14mg 4mg 0%
Vitamin E 0.07mg 0.02mg 0%
Vitamin A 1µg 0µg 0%
Selenium 0.5µg 0.5µg 0%
Saturated fat 0.032g 0.042g 0%
Monounsaturated fat 0.003g 0.013g 0%
Polyunsaturated fat 0.054g 0.017g 0%
Tryptophan 0.027mg 0.014mg 0%
Threonine 0.086mg 0.021mg 0%
Isoleucine 0.085mg 0.014mg 0%
Leucine 0.125mg 0.025mg 0%
Lysine 0.137mg 0.039mg 0%
Methionine 0.041mg 0.002mg 0%
Phenylalanine 0.104mg 0.025mg 0%
Valine 0.131mg 0.021mg 0%
Histidine 0.044mg 0.014mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Russet potato 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
17%
Russet potato
8%
Onion
Minerals Daily Need Coverage Score
23%
Russet potato
8%
Onion

Comparison summary

Which food is lower in Sugar?
Russet potato
Russet potato is lower in Sugar (difference - 3.16g)
Which food is lower in Saturated fat?
Russet potato
Russet potato is lower in Saturated fat (difference - 0.01g)
Which food is cheaper?
Russet potato
Russet potato is cheaper (difference - $0.2)
Which food is richer in minerals?
Russet potato
Russet potato is relatively richer in minerals
Which food is richer in vitamins?
Russet potato
Russet potato is relatively richer in vitamins
Which food contains less Sodium?
Onion
Onion contains less Sodium (difference - 10mg)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 67)
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. Russet potato - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170030/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.