Mushroom vs. Onion

Nutrition comparison of Mushroom and Onion


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

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

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

  • Mushroom has 65% less carbohydrates than onion.
  • Mushroom has more riboflavin, niacin, pantothenic acid and Vitamin B12.
  • Mushroom is an excellent source of potassium.
Detailed nutritional comparison of mushroom 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: Mushroom (Mushrooms, white, raw) and Onion (Onions, raw) . Have a correction or suggestions? Shoot us an email.


Image of Mushroom src
Image of Onion src

Calories and Carbs

calories

Onion and mushroom contain similar amounts of calories - onion has 40 calories per 100 grams and mushroom has 22 calories.

For macronutrient ratios, mushroom is much heavier in protein, much lighter in carbs and heavier in fat compared to onion per calorie. Mushroom has a macronutrient ratio of 43:43:14 and for onion, 11:87:3 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Mushroom Onion
Protein 43% 11%
Carbohydrates 43% 87%
Fat 14% 3%
Alcohol ~ ~

carbohydrates

Mushroom has 65% less carbohydrates than onion - onion has 9.3g of total carbs per 100 grams and mushroom has 3.3g of carbohydrates.

dietary fiber

Onion has 70% more dietary fiber than mushroom - onion has 1.7g of dietary fiber per 100 grams and mushroom has 1g of dietary fiber.

sugar

Onion and mushroom contain similar amounts of sugar - onion has 4.2g of sugar per 100 grams and mushroom has 2g of sugar.

Protein

protein

Mushroom has 181% more protein than onion - onion has 1.1g of protein per 100 grams and mushroom has 3.1g of protein.

Fat

saturated fat

Both onion and mushroom are low in saturated fat - onion has 0.04g of saturated fat per 100 grams and mushroom has 0.05g of saturated fat.

Vitamins

Vitamin C

Onion has 252% more Vitamin C than mushroom - onion has 7.4mg of Vitamin C per 100 grams and mushroom has 2.1mg of Vitamin C.

Vitamin A

Onion and mushroom contain similar amounts of Vitamin A - onion has 0.6ug of Vitamin A per 100 grams and mushroom does not contain significant amounts.

Vitamin D

Mushroom has more Vitamin D than onion - mushroom has 7iu of Vitamin D per 100 grams and onion does not contain significant amounts.

Vitamin E

Onion and mushroom contain similar amounts of Vitamin E - onion has 0.02mg of Vitamin E per 100 grams and mushroom has 0.01mg of Vitamin E.

Vitamin K

Onion and mushroom contain similar amounts of Vitamin K - onion has 0.4ug of Vitamin K per 100 grams and mushroom does not contain significant amounts.

The B Vitamins

Mushroom has more riboflavin, niacin, pantothenic acid and Vitamin B12. Both mushroom and onion contain significant amounts of thiamin, Vitamin B6 and folate.

Mushroom Onion
Thiamin 0.081 MG 0.046 MG
Riboflavin 0.402 MG 0.027 MG
Niacin 3.607 MG 0.116 MG
Pantothenic acid 1.497 MG 0.123 MG
Vitamin B6 0.104 MG 0.12 MG
Folate 17 UG 19 UG
Vitamin B12 0.04 UG ~

Minerals

calcium

Onion has 667% more calcium than mushroom - onion has 23mg of calcium per 100 grams and mushroom has 3mg of calcium.

iron

Onion and mushroom contain similar amounts of iron - onion has 0.21mg of iron per 100 grams and mushroom has 0.5mg of iron.

potassium

Mushroom is an excellent source of potassium and it has 118% more potassium than onion - onion has 146mg of potassium per 100 grams and mushroom has 318mg of potassium.

Omega-3 and Omega-6

omega 6s

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

Mushroom Onion
linoleic acid 0.16 G 0.013 G
Total 0.16 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: Mushroom (Mushrooms, white, raw) and Onion (Onions, raw) .

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G Water G
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FAQ

Does onion or mushroom contain more calories in 100 grams?
Onion and mushroom contain similar amounts of calories - onion has 40 calories in 100g and mushroom has 22 calories.

Is onion or mushroom better for protein?
Mushroom has 180% more protein than onion - onion has 1.1g of protein per 100 grams and mushroom has 3.1g of protein.

Does onion or mushroom have more carbohydrates?
By weight, mushroom has 70% fewer carbohydrates than onion - onion has 9.3g of carbs for 100g and mushroom has 3.3g of carbohydrates.

Does onion or mushroom contain more potassium?
Mushroom is a rich source of potassium and it has 120% more potassium than onion - onion has 146mg of potassium in 100 grams and mushroom has 318mg of potassium.