Grapefruit vs. Lemon

Nutrition comparison of Grapefruit and Lemon


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

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

For a quick recap of significant nutrients and differences in grapefruit and lemon:

  • Both lemon and grapefruit are high in Vitamin C.
  • Lemon has 64% less sugar than grapefruit.
  • Lemon is a great source of dietary fiber.
Detailed nutritional comparison of grapefruit and lemon 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: Grapefruit (Grapefruit, raw, pink and red, all areas) and Lemon (Lemons, raw, without peel) . Have a correction or suggestions? Shoot us an email.


Image of Grapefruit src
Image of Lemon src

Calories and Carbs

calories

Lemon and grapefruit contain similar amounts of calories - lemon has 29 calories per 100 grams and grapefruit has 42 calories.

For macronutrient ratios, grapefruit is heavier in carbs, lighter in fat and similar to lemon for protein. Grapefruit has a macronutrient ratio of 7:91:3 and for lemon, 9:84:7 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Grapefruit Lemon
Protein 7% 9%
Carbohydrates 91% 84%
Fat 3% 7%
Alcohol ~ ~

carbohydrates

Lemon and grapefruit contain similar amounts carbs - lemon has 9.3g of total carbs per 100 grams and grapefruit has 10.7g of carbohydrates.

dietary fiber

Lemon is a great source of dietary fiber and it has 75% more dietary fiber than grapefruit - lemon has 2.8g of dietary fiber per 100 grams and grapefruit has 1.6g of dietary fiber.

sugar

Lemon has 64% less sugar than grapefruit - lemon has 2.5g of sugar per 100 grams and grapefruit has 6.9g of sugar.



Protein

protein

Lemon and grapefruit contain similar amounts of protein - lemon has 1.1g of protein per 100 grams and grapefruit has 0.77g of protein.

Fat

saturated fat

Both lemon and grapefruit are low in saturated fat - lemon has 0.04g of saturated fat per 100 grams and grapefruit has 0.02g of saturated fat.

Vitamins

Vitamin C

Both lemon and grapefruit are high in Vitamin C. Lemon has 70% more Vitamin C than grapefruit - lemon has 53mg of Vitamin C per 100 grams and grapefruit has 31.2mg of Vitamin C.

Vitamin A

Grapefruit has 57 times more Vitamin A than lemon - lemon has 1ug of Vitamin A per 100 grams and grapefruit has 58ug of Vitamin A.

Vitamin E

Lemon and grapefruit contain similar amounts of Vitamin E - lemon has 0.15mg of Vitamin E per 100 grams and grapefruit has 0.13mg of Vitamin E.

The B Vitamins

Both grapefruit and lemon contain significant amounts of thiamin, riboflavin, niacin, pantothenic acid, Vitamin B6 and folate.

Grapefruit Lemon
Thiamin 0.043 MG 0.04 MG
Riboflavin 0.031 MG 0.02 MG
Niacin 0.204 MG 0.1 MG
Pantothenic acid 0.262 MG 0.19 MG
Vitamin B6 0.053 MG 0.08 MG
Folate 13 UG 11 UG

Minerals

calcium

Lemon and grapefruit contain similar amounts of calcium - lemon has 26mg of calcium per 100 grams and grapefruit has 22mg of calcium.

iron

Lemon has 650% more iron than grapefruit - lemon has 0.6mg of iron per 100 grams and grapefruit has 0.08mg of iron.

potassium

Lemon and grapefruit contain similar amounts of potassium - lemon has 138mg 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, both grapefruit and lemon contain small amounts of kaempferol.

Grapefruit Lemon
luteolin 0.6 mg 1.9 mg
kaempferol 0.01 mg 0.03 mg
myricetin 0.01 mg 0.5 mg
Quercetin 0.33 mg 1.14 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, both grapefruit and lemon contain small amounts of alpha-carotene and lutein + zeaxanthin.

Grapefruit Lemon
beta-carotene 686 UG 3 UG
alpha-carotene 3 UG 1 UG
lycopene 1419 UG ~
lutein + zeaxanthin 5 UG 11 UG

Omega-3 and Omega-6

omega 3s

For omega-3 fatty acids, lemon has more alpha linoleic acid (ALA) than grapefruit per 100 grams.

Grapefruit Lemon
alpha linoleic acid 0.008 G 0.026 G
Total 0.008 G 0.026 G

omega 6s

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

Grapefruit Lemon
linoleic acid 0.029 G 0.063 G
Total 0.029 G 0.063 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: Grapefruit (Grapefruit, raw, pink and red, all areas) and Lemon (Lemons, raw, without peel) .

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G Water G
G Starch G
G Alcohol G