Celery vs. Onion

Nutrition comparison of Celery and Onion


Ever wonder how your favorite foods stack up against each other in terms of nutrition?

We compared the nutritional contents of celery versus onion (100g each) below using 2020 USDA and NIH data[1].

For a quick recap of significant nutrients and differences in celery and onion:

  • Celery has 65% less calories than onion.
  • Celery has 68% less carbohydrates than onion.
  • Celery has more riboflavin and pantothenic acid.
  • Celery is a great source of potassium.
Detailed nutritional comparison of celery and onion is analyzed below. You can also visualize the nutritional comparison for a custom portion or serving size and see how the nutrition compares.

USDA sources for nutritional information: Celery (Celery, raw) and Onion (Onions, raw) . Have a correction or suggestions? Shoot us an email.


Image of Celery src
Image of Onion src

Calories and Carbs

calories

Celery has 65% less calories than onion - celery has 14 calories per 100 grams and onion has 40 calories.

For macronutrient ratios, celery is heavier in protein, lighter in carbs and heavier in fat compared to onion per calorie. Celery has a macronutrient ratio of 17:72:11 and for onion, 11:87:3 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Celery Onion
Protein 17% 11%
Carbohydrates 72% 87%
Fat 11% 3%
Alcohol ~ ~

carbohydrates

Celery has 68% less carbohydrates than onion - celery has 3g of total carbs per 100 grams and onion has 9.3g of carbohydrates.

dietary fiber

Celery and onion contain similar amounts of dietary fiber - celery has 1.6g of dietary fiber per 100 grams and onion has 1.7g of dietary fiber.

sugar

Celery and onion contain similar amounts of sugar - celery has 1.3g of sugar per 100 grams and onion has 4.2g of sugar.

Protein

protein

Celery and onion contain similar amounts of protein - celery has 0.69g of protein per 100 grams and onion has 1.1g of protein.

Fat

saturated fat

Both celery and onion are low in saturated fat - celery has 0.04g of saturated fat per 100 grams and onion has 0.04g of saturated fat.

Vitamins

Vitamin C

Onion has 139% more Vitamin C than celery - celery has 3.1mg of Vitamin C per 100 grams and onion has 7.4mg of Vitamin C.

Vitamin A

Celery has more Vitamin A than onion - celery has 22ug of Vitamin A per 100 grams and onion does not contain significant amounts.

Vitamin E

Celery and onion contain similar amounts of Vitamin E - celery has 0.27mg of Vitamin E per 100 grams and onion has 0.02mg of Vitamin E.

Vitamin K

Celery has 72 times more Vitamin K than onion - celery has 29.3ug of Vitamin K per 100 grams and onion has 0.4ug of Vitamin K.

The B Vitamins

Celery has more riboflavin and pantothenic acid. Both celery and onion contain significant amounts of thiamin, niacin, Vitamin B6 and folate.

Celery Onion
Thiamin 0.021 MG 0.046 MG
Riboflavin 0.057 MG 0.027 MG
Niacin 0.32 MG 0.116 MG
Pantothenic acid 0.246 MG 0.123 MG
Vitamin B6 0.074 MG 0.12 MG
Folate 36 UG 19 UG

Minerals

calcium

Celery has 74% more calcium than onion - celery has 40mg of calcium per 100 grams and onion has 23mg of calcium.

iron

Celery and onion contain similar amounts of iron - celery has 0.2mg of iron per 100 grams and onion has 0.21mg of iron.

potassium

Celery is a great source of potassium and it has 78% more potassium than onion - celery has 260mg of potassium per 100 grams and onion has 146mg of potassium.

Antioxidants and Phytonutrients

flavonoids

Naturally occuring in fruits and vegetables, flavonoids are associated with many health benefits and used in a variety of medicinal and pharmaceutical applications. [2][3]

For specific flavonoid compounds, celery has more apigenin and luteolin than onion per 100 grams, however, onion contains more kaempferol, quercetin and isorhamnetin than celery per 100 grams.

Celery Onion
apigenin 2.85 mg 0.01 mg
luteolin 1.05 mg 0.02 mg
kaempferol 0.22 mg 0.65 mg
Quercetin 0.39 mg 20.3 mg
isorhamnetin ~ 5.01 mg
myricetin ~ 0.03 mg

carotenoids

Carotenoids are micronutrients commonly found in plants and some animal products. An example is beta-carotene, the notable carotenoid which is a popular source of Vitamin A.[4][5]

For specific types of carotenoids,

Celery Onion
beta-carotene 270 UG 1 UG
lutein + zeaxanthin 283 UG 4 UG

Omega-3 and Omega-6

omega 6s

Comparing omega-6 fatty acids, celery has more linoleic acid than onion per 100 grams.

Celery Onion
linoleic acid 0.079 G 0.013 G
Total 0.079 G 0.013 G



Customize your serving size


The comparison below is by common portions, e.g. cups, packages. You can also see a more concrete comparison by weight at equal weight (by grams) comparison.

Note: The specific food items compared are: Celery (Celery, raw) and Onion (Onions, raw) .

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G Water G
G Starch G
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FAQ

Does celery or onion contain more calories in 100 grams?
Celery has 70% less calories than onion - celery has 14 calories in 100g and onion has 40 calories.

Does celery or onion have more carbohydrates?
By weight, celery has 70% fewer carbohydrates than onion - celery has 3g of carbs for 100g and onion has 9.3g of carbohydrates.