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Banana vs. Onion — In-Depth Nutrition Comparison

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Important differences between bananas and onions

  • Bananas have more vitamin B6, potassium, and manganese than onions.
  • Bananas' daily need coverage for vitamin B6 is 19% more.
  • Bananas contain 6 times more vitamin B3 than onions. Bananas contain 0.665mg of vitamin B3, while onions contain 0.116mg.
  • Onions contain less sugar.
  • Bananas have a higher glycemic index. The glycemic index of bananas is 48, while the glycemic index of onions is 15.

The food varieties used in the comparison are Bananas, raw and Onions, raw.

Infographic

Banana vs 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.
Banana
7
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 19% 1.5% 32% 9.8% 26% 4.1% 9.4% 0.13% 35% 5.5%
Onion
3
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 +170%
Contains more PotassiumPotassium +145.2%
Contains more IronIron +23.8%
Contains more CopperCopper +100%
Contains less SodiumSodium -75%
Contains more ManganeseManganese +109.3%
Contains more SeleniumSelenium +100%
Contains more CalciumCalcium +360%
Contains more ZincZinc +13.3%
Contains more PhosphorusPhosphorus +31.8%

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.
Banana
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 29% 1% 2% 0% 7.8% 17% 12% 20% 85% 0% 1.3% 15% 5.3%
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% 0.4% 0% 12% 6.2% 2.2% 7.4% 28% 0% 1% 14% 3.3%
Contains more Vitamin CVitamin C +17.6%
Contains more Vitamin AVitamin A +∞%
Contains more Vitamin EVitamin E +400%
Contains more Vitamin B2Vitamin B2 +170.4%
Contains more Vitamin B3Vitamin B3 +473.3%
Contains more Vitamin B5Vitamin B5 +171.5%
Contains more Vitamin B6Vitamin B6 +205.8%
Contains more Vitamin KVitamin K +25%
Contains more CholineCholine +60.7%
Contains more Vitamin B1Vitamin B1 +48.4%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg
~equal in Folate ~19µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Banana
3
23% 75%
Protein: 1.09 g
Fats: 0.33 g
Carbs: 22.84 g
Water: 74.91 g
Other: 0.83 g
Onion
2
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
Contains more FatsFats +230%
Contains more CarbsCarbs +144.5%
Contains more OtherOther +137.1%
Contains more WaterWater +19%
~equal in Protein ~1.1g

Fat Type Comparison

Fat type breakdown side-by-side comparison
Banana
2
52% 15% 34%
Saturated fat: Sat. Fat 0.112 g
Monounsaturated fat: Mono. Fat 0.032 g
Polyunsaturated fat: Poly. Fat 0.073 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 more Mono. FatMonounsaturated fat +146.2%
Contains more Poly. FatPolyunsaturated fat +329.4%
Contains less Sat. FatSaturated fat -62.5%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Banana
5
31% 14% 28% 28%
Starch: 5.38 g
Sucrose: 2.39 g
Glucose: 4.98 g
Fructose: 4.85 g
Lactose: 0 g
Maltose: 0.01 g
Galactose: 0 g
Onion
0
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 +141.4%
Contains more GlucoseGlucose +152.8%
Contains more FructoseFructose +276%
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.
Banana Onion
Lower in Sugar ok
Lower in Saturated fat ok
Lower in Glycemic Index ok
Lower in Sodium ok
Rich in vitamins ok
Lower in Cholesterol Equal
Lower in price Equal
Rich in minerals Equal

All nutrients comparison - raw data values

Nutrient Banana Onion DV% diff.
Vitamin B6 0.367mg 0.12mg 19%
Potassium 358mg 146mg 6%
Manganese 0.27mg 0.129mg 6%
Carbs 22.84g 9.34g 5%
Fructose 4.85g 1.29g 4%
Copper 0.078mg 0.039mg 4%
Vitamin B5 0.334mg 0.123mg 4%
Magnesium 27mg 10mg 4%
Vitamin B2 0.073mg 0.027mg 4%
Fiber 2.6g 1.7g 4%
Vitamin B3 0.665mg 0.116mg 3%
Starch 5.38g 0g 2%
Calories 89kcal 40kcal 2%
Calcium 5mg 23mg 2%
Vitamin B1 0.031mg 0.046mg 1%
Phosphorus 22mg 29mg 1%
Choline 9.8mg 6.1mg 1%
Vitamin E 0.1mg 0.02mg 1%
Iron 0.26mg 0.21mg 1%
Selenium 1µg 0.5µg 1%
Vitamin C 8.7mg 7.4mg 1%
Protein 1.09g 1.1g 0%
Fats 0.33g 0.1g 0%
Net carbs 20.24g 7.64g N/A
Sugar 12.23g 4.24g N/A
Zinc 0.15mg 0.17mg 0%
Sodium 1mg 4mg 0%
Vitamin A 3µg 0µg 0%
Vitamin K 0.5µg 0.4µg 0%
Folate 20µg 19µg 0%
Saturated fat 0.112g 0.042g 0%
Monounsaturated fat 0.032g 0.013g 0%
Polyunsaturated fat 0.073g 0.017g 0%
Tryptophan 0.009mg 0.014mg 0%
Threonine 0.028mg 0.021mg 0%
Isoleucine 0.028mg 0.014mg 0%
Leucine 0.068mg 0.025mg 0%
Lysine 0.05mg 0.039mg 0%
Methionine 0.008mg 0.002mg 0%
Phenylalanine 0.049mg 0.025mg 0%
Valine 0.047mg 0.021mg 0%
Histidine 0.077mg 0.014mg 0%

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Banana 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
15%
Banana
8%
Onion
Minerals Daily Need Coverage Score
14%
Banana
8%
Onion

Comparison summary

Which food is lower in Sugar?
Onion
Onion is lower in Sugar (difference - 7.99g)
Which food is lower in Saturated fat?
Onion
Onion is lower in Saturated fat (difference - 0.07g)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 33)
Which food contains less Sodium?
Banana
Banana contains less Sodium (difference - 3mg)
Which food is richer in vitamins?
Banana
Banana is relatively richer in vitamins
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 minerals?
?
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. Banana - https://fdc.nal.usda.gov/fdc-app.html#/food-details/173944/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.