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Cucumber vs. Onion — In-Depth Nutrition Comparison

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What are the differences between Cucumber and Onion?

  • Cucumber is higher in Vitamin K, yet Onion is higher in Vitamin B6, and Vitamin C.
  • Cucumber's daily need coverage for Vitamin K is 13% more.

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

Infographic

Cucumber 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.
:
4
Onion
Contains more Iron +33.3%
Contains more Magnesium +30%
Contains less Sodium -50%
Contains more Zinc +17.6%
Contains more Calcium +43.8%
Contains more Phosphorus +20.8%
Contains more Manganese +63.3%
Contains more Selenium +66.7%
Equal in Potassium - 146
Equal in Copper - 0.039
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 5% 11% 10% 11% 13% 1% 6% 14% 11% 2%
Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Copper Manganese Selenium 7% 8% 8% 13% 13% 1% 5% 14% 17% 3%
Contains more Iron +33.3%
Contains more Magnesium +30%
Contains less Sodium -50%
Contains more Zinc +17.6%
Contains more Calcium +43.8%
Contains more Phosphorus +20.8%
Contains more Manganese +63.3%
Contains more Selenium +66.7%
Equal in Potassium - 146
Equal in Copper - 0.039

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.
:
5
Onion
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%
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%
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%
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%
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%
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%

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
:
2
Onion
Contains more Protein +69.2%
Contains more Carbs +157.3%
Equal in Fats - 0.1
Equal in Water - 89.11
Equal in Other - 0.35
4% 95%
Protein: 0.65 g
Fats: 0.11 g
Carbs: 3.63 g
Water: 95.23 g
Other: 0.38 g
9% 89%
Protein: 1.1 g
Fats: 0.1 g
Carbs: 9.34 g
Water: 89.11 g
Other: 0.35 g
Contains more Protein +69.2%
Contains more Carbs +157.3%
Equal in Fats - 0.1
Equal in Water - 89.11
Equal in Other - 0.35

Fat Type Comparison

Fat type breakdown side-by-side comparison
:
1
Onion
Contains less Saturated Fat -11.9%
Contains more Polyunsaturated fat +88.2%
Contains more Monounsaturated Fat +160%
50% 7% 43%
Saturated Fat: 0.037 g
Monounsaturated Fat: 0.005 g
Polyunsaturated fat: 0.032 g
58% 18% 24%
Saturated Fat: 0.042 g
Monounsaturated Fat: 0.013 g
Polyunsaturated fat: 0.017 g
Contains less Saturated Fat -11.9%
Contains more Polyunsaturated fat +88.2%
Contains more Monounsaturated Fat +160%

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
:
3
Onion
Contains more Starch +∞%
Contains more Maltose +∞%
Contains more Sucrose +3200%
Contains more Glucose +159.2%
Contains more Fructose +48.3%
33% 30% 35%
Starch: 0.83 g
Sucrose: 0.03 g
Glucose: 0.76 g
Fructose: 0.87 g
Lactose: 0 g
Maltose: 0.01 g
Galactose: 0 g
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 Starch +∞%
Contains more Maltose +∞%
Contains more Sucrose +3200%
Contains more Glucose +159.2%
Contains more Fructose +48.3%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Cucumber Onion
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 Cucumber Onion Opinion
Net carbs 3.13g 7.64g Onion
Protein 0.65g 1.1g Onion
Fats 0.11g 0.1g Cucumber
Carbs 3.63g 9.34g Onion
Calories 15kcal 40kcal Onion
Starch 0.83g 0g Cucumber
Fructose 0.87g 1.29g Onion
Sugar 1.67g 4.24g Cucumber
Fiber 0.5g 1.7g Onion
Calcium 16mg 23mg Onion
Iron 0.28mg 0.21mg Cucumber
Magnesium 13mg 10mg Cucumber
Phosphorus 24mg 29mg Onion
Potassium 147mg 146mg Cucumber
Sodium 2mg 4mg Cucumber
Zinc 0.2mg 0.17mg Cucumber
Copper 0.041mg 0.039mg Cucumber
Manganese 0.079mg 0.129mg Onion
Selenium 0.3µg 0.5µg Onion
Vitamin A 105IU 2IU Cucumber
Vitamin A RAE 5µg 0µg Cucumber
Vitamin E 0.03mg 0.02mg Cucumber
Vitamin C 2.8mg 7.4mg Onion
Vitamin B1 0.027mg 0.046mg Onion
Vitamin B2 0.033mg 0.027mg Cucumber
Vitamin B3 0.098mg 0.116mg Onion
Vitamin B5 0.259mg 0.123mg Cucumber
Vitamin B6 0.04mg 0.12mg Onion
Folate 7µg 19µg Onion
Vitamin K 16.4µg 0.4µg Cucumber
Tryptophan 0.005mg 0.014mg Onion
Threonine 0.019mg 0.021mg Onion
Isoleucine 0.021mg 0.014mg Cucumber
Leucine 0.029mg 0.025mg Cucumber
Lysine 0.029mg 0.039mg Onion
Methionine 0.006mg 0.002mg Cucumber
Phenylalanine 0.019mg 0.025mg Onion
Valine 0.022mg 0.021mg Cucumber
Histidine 0.01mg 0.014mg Onion
Saturated Fat 0.037g 0.042g Cucumber
Monounsaturated Fat 0.005g 0.013g Onion
Polyunsaturated fat 0.032g 0.017g Cucumber

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Cucumber 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
9%
Cucumber
8%
Onion
Minerals Daily Need Coverage Score
8%
Cucumber
8%
Onion

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

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