Granny Smith Apple vs. Grapefruit

Nutrition comparison of Granny Smith Apple and Grapefruit


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

We compared the nutritional contents of granny smith apple versus grapefruit (100g each) below using 2020 USDA and NIH data[1].

For a quick recap of significant nutrients and differences in granny smith apple and grapefruit:

  • Granny smith apple is a great source of dietary fiber.
  • Grapefruit has more beta-carotene and lycopene than granny smith apple, however, granny smith apple contains more lutein + zeaxanthin than grapefruit.
  • Grapefruit has more pantothenic acid and folate.
  • Grapefruit is an excellent source of Vitamin C.
Detailed nutritional comparison of granny smith apple and grapefruit 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: Granny Smith Apple (Apples, raw, granny smith, with skin (Includes foods for USDA's Food Distribution Program)) and Grapefruit (Grapefruit, raw, pink and red, all areas) . Have a correction or suggestions? Shoot us an email.


Image of Granny Smith Apple src
Image of Grapefruit src

Calories and Carbs

calories

Granny smith apple and grapefruit contain similar amounts of calories - granny smith apple has 58 calories per 100 grams and grapefruit has 42 calories.

For macronutrient ratios, granny smith apple is lighter in protein and similar to grapefruit for carbs and fat. Granny smith apple has a macronutrient ratio of 3:94:3 and for grapefruit, 7:91:2 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Granny Smith Apple Grapefruit
Protein 3% 7%
Carbohydrates 94% 91%
Fat 3% 2%
Alcohol ~ ~

carbohydrates

Granny smith apple and grapefruit contain similar amounts of carbs - granny smith apple has 13.6g of total carbs per 100 grams and grapefruit has 10.7g of carbohydrates.

dietary fiber

Granny smith apple is a great source of dietary fiber and it has 75% more dietary fiber than grapefruit - granny smith apple has 2.8g of dietary fiber per 100 grams and grapefruit has 1.6g of dietary fiber.

sugar

Granny smith apple and grapefruit contain similar amounts of sugar - granny smith apple has 9.6g of sugar per 100 grams and grapefruit has 6.9g of sugar.

Protein

protein

Granny smith apple and grapefruit contain similar amounts of protein - granny smith apple has 0.44g of protein per 100 grams and grapefruit has 0.77g of protein.

Fat

saturated fat

Both grapefruit and granny smith apple are low in saturated fat - grapefruit has 0.02g of saturated fat per 100 grams and granny smith apple does not contain significant amounts.

Vitamins

Vitamin C

Grapefruit is an excellent source of Vitamin C and it has more Vitamin C than granny smith apple - grapefruit has 31.2mg of Vitamin C per 100 grams and granny smith apple does not contain significant amounts.

Vitamin A

Grapefruit has 10 times more Vitamin A than granny smith apple - granny smith apple has 5ug of Vitamin A per 100 grams and grapefruit has 58ug of Vitamin A.

Vitamin E

Granny smith apple and grapefruit contain similar amounts of Vitamin E - granny smith apple has 0.18mg of Vitamin E per 100 grams and grapefruit has 0.13mg of Vitamin E.

Vitamin K

Granny smith apple and grapefruit contain similar amounts of Vitamin K - granny smith apple has 3.2ug of Vitamin K per 100 grams and grapefruit does not contain significant amounts.

The B Vitamins

Grapefruit has more pantothenic acid and folate. Both granny smith apple and grapefruit contain significant amounts of thiamin, riboflavin, niacin and Vitamin B6.

Granny Smith Apple Grapefruit
Thiamin 0.019 MG 0.043 MG
Riboflavin 0.025 MG 0.031 MG
Niacin 0.126 MG 0.204 MG
Pantothenic acid 0.056 MG 0.262 MG
Vitamin B6 0.037 MG 0.053 MG
Folate 3 UG 13 UG

Minerals

calcium

Grapefruit has 340% more calcium than granny smith apple - granny smith apple has 5mg of calcium per 100 grams and grapefruit has 22mg of calcium.

iron

Granny smith apple and grapefruit contain similar amounts of iron - granny smith apple has 0.15mg of iron per 100 grams and grapefruit has 0.08mg of iron.

potassium

Granny smith apple and grapefruit contain similar amounts of potassium - granny smith apple has 120mg of potassium per 100 grams and grapefruit has 135mg 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, granny smith apple has more quercetin than grapefruit per 100 grams, however, grapefruit contains more luteolin than granny smith apple per 100 grams.

Granny Smith Apple Grapefruit
Quercetin 2.54 mg 0.33 mg
luteolin ~ 0.6 mg
kaempferol ~ 0.01 mg
myricetin ~ 0.01 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, grapefruit has more beta-carotene and lycopene than granny smith apple per 100 grams, however, granny smith apple contains more lutein + zeaxanthin than grapefruit per 100 grams.

Granny Smith Apple Grapefruit
beta-carotene 59 UG 686 UG
lutein + zeaxanthin 64 UG 5 UG
alpha-carotene ~ 3 UG
lycopene ~ 1419 UG



Customize your serving size


The comparison below is by weight, but sometimes 100g isn't that intuitive of a measurement for food. View a custom portion comparison (e.g. cups, oz, package).

You can try adding or subtracting the amount of either Granny Smith Apple or Grapefruit .

Note: The specific food items compared are: Granny Smith Apple (Apples, raw, granny smith, with skin (Includes foods for USDA's Food Distribution Program)) and Grapefruit (Grapefruit, raw, pink and red, all areas) .

Granny Smith Apple g

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FAQ

Does granny smith apple or grapefruit contain more calories in 100 grams?
Granny smith apple and grapefruit contain similar amounts of calories - granny smith apple has 58 calories in 100g and grapefruit has 42 calories.

Does granny smith apple or grapefruit have more carbohydrates?
By weight, granny smith apple and grapefruit contain similar amounts of carbs - granny smith apple has 13.6g of carbs for 100g and grapefruit has 10.7g of carbohydrates.