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  6. Bell pepper vs. Sweet onion

Bell pepper vs. Sweet onion — In-Depth Nutrition Comparison

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What are the differences between Bell pepper and Sweet onion?

  • Bell pepper is richer than Sweet onion in Vitamin C, Vitamin B6, and Vitamin K.
  • Bell pepper's daily need coverage for Vitamin C is 84% more.
  • Bell pepper has 25 times more Vitamin K than Sweet onion. While Bell pepper has 7.4µg of Vitamin K, Sweet onion has only 0.3µg.
  • The amount of Sugar in Bell pepper is lower.

We used Peppers, sweet, green, raw and Onions, sweet, raw types in this article.

Infographic

Bell pepper 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.
Bell pepper
Bell pepper
6
:
3
Sweet onion
Sweet onion
Contains more Iron +30.8%
Contains more Magnesium +11.1%
Contains more Potassium +47.1%
Contains less Sodium -62.5%
Contains more Copper +17.9%
Contains more Manganese +60.5%
Contains more Calcium +100%
Contains more Phosphorus +35%
Contains more Selenium +∞%
Equal in Magnesium - 9
Equal in Zinc - 0.13
Bell pepper
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 3% 13% 8% 9% 16% 1% 4% 22% 16% 0%
Sweet onion
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 6% 10% 7% 12% 11% 2% 4% 19% 10% 3%
Contains more Iron +30.8%
Contains more Magnesium +11.1%
Contains more Potassium +47.1%
Contains less Sodium -62.5%
Contains more Copper +17.9%
Contains more Manganese +60.5%
Contains more Calcium +100%
Contains more Phosphorus +35%
Contains more Selenium +∞%
Equal in Magnesium - 9
Equal in Zinc - 0.13

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.
Bell pepper
Bell pepper
10
:
1
Sweet onion
Sweet onion
Contains more Vitamin A +36900%
Contains more Vitamin E +1750%
Contains more Vitamin C +1575%
Contains more Vitamin B1 +39%
Contains more Vitamin B2 +40%
Contains more Vitamin B3 +260.9%
Contains more Vitamin B6 +72.3%
Contains more Vitamin K +2366.7%
Contains more Folate +130%
Equal in Vitamin B5 - 0.098
Bell pepper
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 23% 8% 0% 268% 15% 7% 9% 6% 52% 8% 0% 19%
Sweet onion
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 1% 1% 0% 16% 11% 5% 3% 6% 30% 18% 0% 1%
Contains more Vitamin A +36900%
Contains more Vitamin E +1750%
Contains more Vitamin C +1575%
Contains more Vitamin B1 +39%
Contains more Vitamin B2 +40%
Contains more Vitamin B3 +260.9%
Contains more Vitamin B6 +72.3%
Contains more Vitamin K +2366.7%
Contains more Folate +130%
Equal in Vitamin B5 - 0.098

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Bell pepper
Bell pepper
4
:
1
Sweet onion
Sweet onion
Contains more Fats +112.5%
Contains more Other +33.3%
Contains more Carbs +62.7%
Equal in Protein - 0.8
Equal in Water - 91.24
Bell pepper
5% 94%
Protein: 0.86 g
Fats: 0.17 g
Carbs: 4.64 g
Water: 93.89 g
Other: 0.44 g
Sweet onion
8% 91%
Protein: 0.8 g
Fats: 0.08 g
Carbs: 7.55 g
Water: 91.24 g
Other: 0.33 g
Contains more Fats +112.5%
Contains more Other +33.3%
Contains more Carbs +62.7%
Equal in Protein - 0.8
Equal in Water - 91.24

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Bell pepper
Bell pepper
0
:
4
Sweet onion
Sweet onion
Contains more Sucrose +554.5%
Contains more Glucose +94.8%
Contains more Fructose +80.4%
Contains more Lactose +∞%
Bell pepper
5% 49% 47%
Starch: 0 g
Sucrose: 0.11 g
Glucose: 1.16 g
Fructose: 1.12 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
Sweet onion
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 Sucrose +554.5%
Contains more Glucose +94.8%
Contains more Fructose +80.4%
Contains more Lactose +∞%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Bell pepper 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 vitamins ok
Lower in Cholesterol Equal
Rich in minerals Equal

All nutrients comparison - raw data values

Nutrient Bell pepper Sweet onion Opinion
Net carbs 2.94g 6.65g Sweet onion
Protein 0.86g 0.8g Bell pepper
Fats 0.17g 0.08g Bell pepper
Carbs 4.64g 7.55g Sweet onion
Calories 20kcal 32kcal Sweet onion
Fructose 1.12g 2.02g Sweet onion
Sugar 2.4g 5.02g Bell pepper
Fiber 1.7g 0.9g Bell pepper
Calcium 10mg 20mg Sweet onion
Iron 0.34mg 0.26mg Bell pepper
Magnesium 10mg 9mg Bell pepper
Phosphorus 20mg 27mg Sweet onion
Potassium 175mg 119mg Bell pepper
Sodium 3mg 8mg Bell pepper
Zinc 0.13mg 0.13mg
Copper 0.066mg 0.056mg Bell pepper
Manganese 0.122mg 0.076mg Bell pepper
Selenium 0µg 0.5µg Sweet onion
Vitamin A 370IU 1IU Bell pepper
Vitamin A RAE 18µg 0µg Bell pepper
Vitamin E 0.37mg 0.02mg Bell pepper
Vitamin C 80.4mg 4.8mg Bell pepper
Vitamin B1 0.057mg 0.041mg Bell pepper
Vitamin B2 0.028mg 0.02mg Bell pepper
Vitamin B3 0.48mg 0.133mg Bell pepper
Vitamin B5 0.099mg 0.098mg Bell pepper
Vitamin B6 0.224mg 0.13mg Bell pepper
Folate 10µg 23µg Sweet onion
Vitamin K 7.4µg 0.3µg Bell pepper
Tryptophan 0.012mg 0.009mg Bell pepper
Threonine 0.036mg 0.018mg Bell pepper
Isoleucine 0.024mg 0.014mg Bell pepper
Leucine 0.036mg 0.025mg Bell pepper
Lysine 0.039mg 0.033mg Bell pepper
Methionine 0.007mg 0.009mg Sweet onion
Phenylalanine 0.092mg 0.024mg Bell pepper
Valine 0.036mg 0.02mg Bell pepper
Histidine 0.01mg 0.011mg Sweet onion
Saturated Fat 0.058g Sweet onion
Monounsaturated Fat 0.008g Bell pepper
Polyunsaturated fat 0.062g Bell pepper

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Bell pepper Sweet onion
Low Fats diet ok
Low Carbs diet ok
Low Calories 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
34%
Bell pepper
7%
Sweet onion
Minerals Daily Need Coverage Score
9%
Bell pepper
8%
Sweet onion

Comparison summary

Which food is lower in Saturated Fat?
Sweet onion
Sweet onion is lower in Saturated Fat (difference - 0.058g)
Which food is lower in glycemic index?
Sweet onion
Sweet onion is lower in glycemic index (difference - 32)
Which food is cheaper?
Sweet onion
Sweet onion is cheaper (difference - $0.3)
Which food is lower in Sugar?
Bell pepper
Bell pepper is lower in Sugar (difference - 2.62g)
Which food contains less Sodium?
Bell pepper
Bell pepper contains less Sodium (difference - 5mg)
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.

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