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Onion vs Cucumber - In-Depth Nutrition Comparison

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What are the differences between Onion and Cucumber?

  • Onion is higher in Vitamin B6, and Vitamin C, yet Cucumber is higher in Vitamin K.
  • Cucumber's daily need coverage for Vitamin K is 13% more.
  • Onion has 3 times more Fiber than Cucumber. While Onion has 1.7g of Fiber, Cucumber has only 0.5g.
  • The amount of Sugar in Cucumber is lower.

We used Onions, raw and Cucumber, with peel, raw types in this article.

Infographic

Onion vs Cucumber 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
Onion
2
:
Contains more Calcium +43.8%
Contains more Phosphorus +20.8%
Contains more Iron +33.3%
Contains more Magnesium +30%
Contains less Sodium -50%
Contains more Zinc +17.6%
Equal in Potassium - 147
Equal in Copper - 0.041
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 7% 8% 8% 13% 13% 1% 5% 14%
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper 5% 11% 10% 11% 13% 1% 6% 14%
Contains more Calcium +43.8%
Contains more Phosphorus +20.8%
Contains more Iron +33.3%
Contains more Magnesium +30%
Contains less Sodium -50%
Contains more Zinc +17.6%
Equal in Potassium - 147
Equal in Copper - 0.041

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
Onion
5
:
Contains more Vitamin C +164.3%
Contains more Vitamin B1 +70.4%
Contains more Vitamin B3 +18.4%
Contains more Vitamin B6 +200%
Contains more Folate +171.4%
Contains more Vitamin A +5150%
Contains more Vitamin E +50%
Contains more Vitamin B2 +22.2%
Contains more Vitamin B5 +110.6%
Contains more Vitamin K +4000%
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% 25% 12% 7% 3% 8% 28% 15% 0% 1%
Vitamin A Vitamin E Vitamin D Vitamin C Vitamin B1 Vitamin B2 Vitamin B3 Vitamin B5 Vitamin B6 Folate Vitamin B12 Vitamin K 7% 1% 0% 10% 7% 8% 2% 16% 10% 6% 0% 41%
Contains more Vitamin C +164.3%
Contains more Vitamin B1 +70.4%
Contains more Vitamin B3 +18.4%
Contains more Vitamin B6 +200%
Contains more Folate +171.4%
Contains more Vitamin A +5150%
Contains more Vitamin E +50%
Contains more Vitamin B2 +22.2%
Contains more Vitamin B5 +110.6%
Contains more Vitamin K +4000%

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.
Onion Cucumber
Lower in glycemic index ok
Lower in price ok
Lower in Sugar ok
Lower in Sodium ok
Lower in Saturated Fat ok
Lower in Cholesterol Equal
Rich in minerals Equal
Rich in vitamins Equal

All nutrients comparison - raw data values

Nutrient Onion Cucumber Opinion
Net carbs 7.64g 3.13g Onion
Protein 1.1g 0.65g Onion
Fats 0.1g 0.11g Cucumber
Carbs 9.34g 3.63g Onion
Calories 40kcal 15kcal Onion
Starch 0g 0.83g Cucumber
Fructose 1.29g 0.87g Onion
Sugar 4.24g 1.67g Cucumber
Fiber 1.7g 0.5g Onion
Calcium 23mg 16mg Onion
Iron 0.21mg 0.28mg Cucumber
Magnesium 10mg 13mg Cucumber
Phosphorus 29mg 24mg Onion
Potassium 146mg 147mg Cucumber
Sodium 4mg 2mg Cucumber
Zinc 0.17mg 0.2mg Cucumber
Copper 0.039mg 0.041mg Cucumber
Vitamin A 2IU 105IU Cucumber
Vitamin E 0.02mg 0.03mg Cucumber
Vitamin D 0IU 0IU
Vitamin D 0µg 0µg
Vitamin C 7.4mg 2.8mg Onion
Vitamin B1 0.046mg 0.027mg Onion
Vitamin B2 0.027mg 0.033mg Cucumber
Vitamin B3 0.116mg 0.098mg Onion
Vitamin B5 0.123mg 0.259mg Cucumber
Vitamin B6 0.12mg 0.04mg Onion
Folate 19µg 7µg Onion
Vitamin B12 0µg 0µg
Vitamin K 0.4µg 16.4µg Cucumber
Tryptophan 0.014mg 0.005mg Onion
Threonine 0.021mg 0.019mg Onion
Isoleucine 0.014mg 0.021mg Cucumber
Leucine 0.025mg 0.029mg Cucumber
Lysine 0.039mg 0.029mg Onion
Methionine 0.002mg 0.006mg Cucumber
Phenylalanine 0.025mg 0.019mg Onion
Valine 0.021mg 0.022mg Cucumber
Histidine 0.014mg 0.01mg Onion
Cholesterol 0mg 0mg
Trans Fat 0g 0g
Saturated Fat 0.042g 0.037g Cucumber
Monounsaturated Fat 0.013g 0.005g Onion
Polyunsaturated fat 0.017g 0.032g Cucumber

Which food is preferable for your diet?

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

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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
8
Onion
9
Cucumber
Mineral Summary Score
8
Onion
8
Cucumber

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
7%
Onion
4%
Cucumber
Carbohydrates
9%
Onion
4%
Cucumber
Fats
0%
Onion
1%
Cucumber

Comparison summary

Which food is lower in glycemic index?
Onion
Onion is lower in glycemic index (difference - 6)
Which food is cheaper?
Onion
Onion is cheaper (difference - $0.2)
Which food is lower in Sugar?
Cucumber
Cucumber is lower in Sugar (difference - 2.57g)
Which food contains less Sodium?
Cucumber
Cucumber contains less Sodium (difference - 2mg)
Which food is lower in Saturated Fat?
Cucumber
Cucumber is lower in Saturated Fat (difference - 0.005g)
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.
Which food is richer in vitamins?
?
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

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. Onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170000/nutrients
  2. Cucumber - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168409/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.