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Bell pepper vs Onion - In-Depth Nutrition Comparison

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A recap on differences between Bell pepper and Onion

  • Onion has less Vitamin C, Vitamin B6, and Vitamin K.
  • Bell pepper covers your daily Vitamin C needs 81% more than Onion.
  • Onion contains 19 times less Vitamin K than Bell pepper. Bell pepper contains 7.4µg of Vitamin K, while Onion contains 0.4µg.
  • Bell pepper has less Sugar.

Food varieties used in this article are Peppers, sweet, green, raw and Onions, raw.

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Bell pepper 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" chart below show how much of the daily needs can be covered by 300 grams of the food
Contains more Iron +61.9%
Contains more Potassium +19.9%
Contains more Copper +69.2%
Contains less Sodium -25%
Contains more Calcium +130%
Contains more Zinc +30.8%
Contains more Phosphorus +45%
Equal in Magnesium - 10
Iron Calcium Potassium Magnesium Copper Zinc Phosphorus Sodium 13% 3% 16% 8% 22% 4% 9% 1%
Iron Calcium Potassium Magnesium Copper Zinc Phosphorus Sodium 8% 7% 13% 8% 14% 5% 13% 1%
Contains more Iron +61.9%
Contains more Potassium +19.9%
Contains more Copper +69.2%
Contains less Sodium -25%
Contains more Calcium +130%
Contains more Zinc +30.8%
Contains more Phosphorus +45%
Equal in Magnesium - 10

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" chart below show how much of the daily needs can be covered by 300 grams of the food
:
2
Onion
Contains more Vitamin C +986.5%
Contains more Vitamin A +18400%
Contains more Vitamin E +1750%
Contains more Vitamin B1 +23.9%
Contains more Vitamin B3 +313.8%
Contains more Vitamin B6 +86.7%
Contains more Vitamin K +1750%
Contains more Vitamin B5 +24.2%
Contains more Folate +90%
Equal in Vitamin B2 - 0.027
Vitamin C Vitamin A Vitamin E Vitamin D Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Vitamin B12 Vitamin K Folate 268% 23% 8% 0% 15% 7% 9% 6% 52% 0% 19% 8%
Vitamin C Vitamin A Vitamin E Vitamin D Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Vitamin B12 Vitamin K Folate 25% 1% 1% 0% 12% 7% 3% 8% 28% 0% 1% 15%
Contains more Vitamin C +986.5%
Contains more Vitamin A +18400%
Contains more Vitamin E +1750%
Contains more Vitamin B1 +23.9%
Contains more Vitamin B3 +313.8%
Contains more Vitamin B6 +86.7%
Contains more Vitamin K +1750%
Contains more Vitamin B5 +24.2%
Contains more Folate +90%
Equal in Vitamin B2 - 0.027

Vitamin and Mineral Summary Scores

The summary score is calculated by summing up the daily values contained in 300 grams of the product. Obviously the more the food fulfills human daily needs, the more the summary score is.
Vitamin Summary Score
34
Bell pepper
8
Onion
Mineral Summary Score
9
Bell pepper
8
Onion

Macronutrients Comparison

Macronutrient comparison charts compare the amount of protein, total fats, and total carbohydrates in 300 grams of the food. The displayed values show how much of the daily needs can be covered by 300 grams of food.
Protein
5%
Bell pepper
7%
Onion
Carbohydrates
5%
Bell pepper
9%
Onion
Fats
1%
Bell pepper
0%
Onion

Comparison summary table

Pay attention to the most right column. It shows the amounts side by side, making it easier to realize the amount of difference.
Bell pepper 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 vitamins ok
Lower in Cholesterol Equal
Rich in minerals Equal

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Bell pepper Onion
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low glycemic index diet ok

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Comparison summary

Which food is lower in Saturated Fat?
Onion
Onion is lower in Saturated Fat (difference - 0.016g)
Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 17)
Which food is cheaper?
Onion
Onion is cheaper (difference - $0.1)
Which food is lower in Sugar?
Bell pepper
Bell pepper is lower in Sugar (difference - 1.84g)
Which food contains less Sodium?
Bell pepper
Bell pepper contains less Sodium (difference - 1mg)
Which food is richer in vitamins?
Bell pepper
Bell pepper is relatively richer in vitamins
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
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.

All nutrients comparison - raw data values

Nutrient Bell pepper Onion Opinion
Calories 20 40 Onion
Protein 0.86 1.1 Onion
Fats 0.17 0.1 Bell pepper
Vitamin C 80.4 7.4 Bell pepper
Net carbs 2.940000057220459 7.639999866485596 Onion
Carbs 4.64 9.34 Onion
Cholesterol 0 0
Vitamin D 0 0
Iron 0.34 0.21 Bell pepper
Calcium 10 23 Onion
Potassium 175 146 Bell pepper
Magnesium 10 10
Sugar 2.4 4.24 Bell pepper
Fiber 1.7 1.7
Copper 0.066 0.039 Bell pepper
Zinc 0.13 0.17 Onion
Starch 0 0
Phosphorus 20 29 Onion
Sodium 3 4 Bell pepper
Vitamin A 370 2 Bell pepper
Vitamin E 0.37 0.02 Bell pepper
Vitamin D 0 0
Vitamin B1 0.057 0.046 Bell pepper
Vitamin B2 0.028 0.027 Bell pepper
Vitamin B3 0.48 0.116 Bell pepper
Vitamin B5 0.099 0.123 Onion
Vitamin B6 0.224 0.12 Bell pepper
Vitamin B12 0 0
Vitamin K 7.4 0.4 Bell pepper
Folate 10 19 Onion
Trans Fat 0 0
Saturated Fat 0.058 0.042 Onion
Monounsaturated Fat 0.008 0.013 Onion
Polyunsaturated fat 0.062 0.017 Bell pepper
Tryptophan 0.012 0.014 Onion
Threonine 0.036 0.021 Bell pepper
Isoleucine 0.024 0.014 Bell pepper
Leucine 0.036 0.025 Bell pepper
Lysine 0.039 0.039
Methionine 0.007 0.002 Bell pepper
Phenylalanine 0.092 0.025 Bell pepper
Valine 0.036 0.021 Bell pepper
Histidine 0.01 0.014 Onion
Fructose 1.12 1.29 Onion

References

The source of all the nutrient values on the page (excluding the main article the sources for which are presented separately if present) is the USDA's FoodCentral. The exact links to the foods presented on this page can be found below.

  1. Bell pepper - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170427/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.