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  6. Sweet onion vs. Bell pepper

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

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What are the differences between Sweet onion and Bell pepper?

  • 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.
  • Sweet onion has 2 times more Sugar than Bell pepper. While Sweet onion has 5.02g of Sugar, Bell pepper has only 2.4g.

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

Infographic

Sweet onion vs Bell pepper 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.
Sweet onion
Sweet onion
3
:
6
Bell pepper
Bell pepper
Contains more Calcium +100%
Contains more Phosphorus +35%
Contains more Selenium +∞%
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%
Equal in Zinc - 0.13
Sweet onion
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 6% 10% 7% 12% 11% 2% 4% 19% 10% 3%
Bell pepper
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 3% 13% 8% 9% 16% 1% 4% 22% 16% 0%
Contains more Calcium +100%
Contains more Phosphorus +35%
Contains more Selenium +∞%
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%
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.
Sweet onion
Sweet onion
1
:
10
Bell pepper
Bell pepper
Contains more Folate +130%
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%
Equal in Vitamin B5 - 0.099
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%
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%
Contains more Folate +130%
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%
Equal in Vitamin B5 - 0.099

Macronutrient Comparison

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

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
Sweet onion
Sweet onion
4
:
0
Bell pepper
Bell pepper
Contains more Sucrose +554.5%
Contains more Glucose +94.8%
Contains more Fructose +80.4%
Contains more Lactose +∞%
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
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
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.
Sweet onion Bell pepper
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 Sweet onion Bell pepper Opinion
Net carbs 6.65g 2.94g Sweet onion
Protein 0.8g 0.86g Bell pepper
Fats 0.08g 0.17g Bell pepper
Carbs 7.55g 4.64g Sweet onion
Calories 32kcal 20kcal Sweet onion
Fructose 2.02g 1.12g Sweet onion
Sugar 5.02g 2.4g Bell pepper
Fiber 0.9g 1.7g Bell pepper
Calcium 20mg 10mg Sweet onion
Iron 0.26mg 0.34mg Bell pepper
Magnesium 9mg 10mg Bell pepper
Phosphorus 27mg 20mg Sweet onion
Potassium 119mg 175mg Bell pepper
Sodium 8mg 3mg Bell pepper
Zinc 0.13mg 0.13mg
Copper 0.056mg 0.066mg Bell pepper
Manganese 0.076mg 0.122mg Bell pepper
Selenium 0.5µg 0µg Sweet onion
Vitamin A 1IU 370IU Bell pepper
Vitamin A RAE 0µg 18µg Bell pepper
Vitamin E 0.02mg 0.37mg Bell pepper
Vitamin C 4.8mg 80.4mg Bell pepper
Vitamin B1 0.041mg 0.057mg Bell pepper
Vitamin B2 0.02mg 0.028mg Bell pepper
Vitamin B3 0.133mg 0.48mg Bell pepper
Vitamin B5 0.098mg 0.099mg Bell pepper
Vitamin B6 0.13mg 0.224mg Bell pepper
Folate 23µg 10µg Sweet onion
Vitamin K 0.3µg 7.4µg Bell pepper
Tryptophan 0.009mg 0.012mg Bell pepper
Threonine 0.018mg 0.036mg Bell pepper
Isoleucine 0.014mg 0.024mg Bell pepper
Leucine 0.025mg 0.036mg Bell pepper
Lysine 0.033mg 0.039mg Bell pepper
Methionine 0.009mg 0.007mg Sweet onion
Phenylalanine 0.024mg 0.092mg Bell pepper
Valine 0.02mg 0.036mg Bell pepper
Histidine 0.011mg 0.01mg 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
Sweet onion Bell pepper
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
7%
Sweet onion
34%
Bell pepper
Minerals Daily Need Coverage Score
8%
Sweet onion
9%
Bell pepper

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. Sweet onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170008/nutrients
  2. Bell pepper - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170427/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.