Zucchini vs Onion - In-Depth Nutrition Comparison
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How are Zucchini and Onion different?
- Zucchini has more Vitamin C, and Vitamin B2 than Onion.
- Daily need coverage for Vitamin C from Zucchini is 12% higher.
- Zucchini contains 3 times more Vitamin B2 than Onion. While Zucchini contains 0.094mg of Vitamin B2, Onion contains only 0.027mg.
- Zucchini has less Sugar.
Squash, summer, zucchini, includes skin, raw and Onions, raw are the varieties used in this article.
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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
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Iron
+76.2%
Contains
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Magnesium
+80%
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Phosphorus
+31%
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Potassium
+78.8%
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Zinc
+88.2%
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Copper
+35.9%
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Calcium
+43.8%
Contains
less
Sodium
-50%
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Iron
+76.2%
Contains
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Magnesium
+80%
Contains
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Phosphorus
+31%
Contains
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Potassium
+78.8%
Contains
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Zinc
+88.2%
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Copper
+35.9%
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Calcium
+43.8%
Contains
less
Sodium
-50%
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
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Contains
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Vitamin A
+9900%
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Vitamin E
+500%
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Vitamin C
+141.9%
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Vitamin B2
+248.1%
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Vitamin B3
+288.8%
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Vitamin B5
+65.9%
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Vitamin B6
+35.8%
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Folate
+26.3%
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Vitamin K
+975%
Equal in Vitamin B1 - 0.046
Contains
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Vitamin A
+9900%
Contains
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Vitamin E
+500%
Contains
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Vitamin C
+141.9%
Contains
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Vitamin B2
+248.1%
Contains
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Vitamin B3
+288.8%
Contains
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Vitamin B5
+65.9%
Contains
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Vitamin B6
+35.8%
Contains
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Folate
+26.3%
Contains
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Vitamin K
+975%
Equal in Vitamin B1 - 0.046
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.
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Rich in minerals |
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Lower in Sugar |
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Rich in vitamins |
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Lower in Sodium |
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Lower in Saturated Fat |
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Lower in price |
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Lower in Cholesterol | Equal | ||
Lower in glycemic index | Equal |
All nutrients comparison - raw data values
Nutrient | ![]() |
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Opinion |
Net carbs | 2.11g | 7.64g |
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Protein | 1.21g | 1.1g |
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Fats | 0.32g | 0.1g |
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Carbs | 3.11g | 9.34g |
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Calories | 17kcal | 40kcal |
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Starch | 0g | 0g | |
Fructose | 1.38g | 1.29g |
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Sugar | 2.5g | 4.24g |
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Fiber | 1g | 1.7g |
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Calcium | 16mg | 23mg |
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Iron | 0.37mg | 0.21mg |
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Magnesium | 18mg | 10mg |
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Phosphorus | 38mg | 29mg |
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Potassium | 261mg | 146mg |
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Sodium | 8mg | 4mg |
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Zinc | 0.32mg | 0.17mg |
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Copper | 0.053mg | 0.039mg |
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Vitamin A | 200IU | 2IU |
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Vitamin E | 0.12mg | 0.02mg |
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Vitamin D | 0IU | 0IU | |
Vitamin D | 0µg | 0µg | |
Vitamin C | 17.9mg | 7.4mg |
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Vitamin B1 | 0.045mg | 0.046mg |
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Vitamin B2 | 0.094mg | 0.027mg |
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Vitamin B3 | 0.451mg | 0.116mg |
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Vitamin B5 | 0.204mg | 0.123mg |
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Vitamin B6 | 0.163mg | 0.12mg |
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Folate | 24µg | 19µg |
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Vitamin B12 | 0µg | 0µg | |
Vitamin K | 4.3µg | 0.4µg |
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Tryptophan | 0.01mg | 0.014mg |
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Threonine | 0.029mg | 0.021mg |
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Isoleucine | 0.044mg | 0.014mg |
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Leucine | 0.071mg | 0.025mg |
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Lysine | 0.067mg | 0.039mg |
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Methionine | 0.018mg | 0.002mg |
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Phenylalanine | 0.043mg | 0.025mg |
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Valine | 0.054mg | 0.021mg |
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Histidine | 0.026mg | 0.014mg |
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Cholesterol | 0mg | 0mg | |
Trans Fat | 0g | 0g | |
Saturated Fat | 0.084g | 0.042g |
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Monounsaturated Fat | 0.011g | 0.013g |
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Polyunsaturated fat | 0.091g | 0.017g |
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Which food is preferable for your diet?


is better in case of low diet
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Low Fats diet |
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Low Carbs diet |
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Low Calories diet |
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Low glycemic index diet | Equal |
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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
16

8

Mineral Summary Score
12

8

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%

7%

Carbohydrates
3%

9%

Fats
1%

0%

Comparison summary
Which food is richer in minerals?

Zucchini is relatively richer in minerals
Which food is lower in Sugar?

Zucchini is lower in Sugar (difference - 1.74g)
Which food is richer in vitamins?

Zucchini is relatively richer in vitamins
Which food contains less Sodium?

Onion contains less Sodium (difference - 4mg)
Which food is lower in Saturated Fat?

Onion is lower in Saturated Fat (difference - 0.042g)
Which food is cheaper?

Onion is cheaper (difference - $0.2)
Which food contains less Cholesterol?
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The foods are relatively equal in Cholesterol (0 mg)
Which food is lower in glycemic index?
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The foods have equal glycemic indexes (15)