Grapefruit vs. Lemon juice

Nutrition comparison of Grapefruit and Lemon Juice


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

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

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

  • Both lemon juice and grapefruit are high in Vitamin C.
  • Grapefruit has more riboflavin.
  • Lemon juice has 63% less sugar than grapefruit.
Detailed nutritional comparison of grapefruit and lemon juice 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 juice (Lemon juice, raw) . Have a correction or suggestions? Shoot us an email.


Image of Grapefruit src
Image of Lemon juice src

Calories and Carbs

calories

Lemon juice and grapefruit contain similar amounts of calories - lemon juice has 22 calories per 100 grams and grapefruit has 42 calories.

For macronutrient ratios, grapefruit is lighter in fat and similar to lemon juice for protein and carbs. Grapefruit has a macronutrient ratio of 7:91:3 and for lemon juice, 5:88:7 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Grapefruit Lemon juice
Protein 7% 5%
Carbohydrates 91% 88%
Fat 3% 7%
Alcohol ~ ~

carbohydrates

Lemon juice and grapefruit contain similar amounts carbs - lemon juice has 6.9g of total carbs per 100 grams and grapefruit has 10.7g of carbohydrates.

dietary fiber

Grapefruit has 433% more dietary fiber than lemon juice - lemon juice has 0.3g of dietary fiber per 100 grams and grapefruit has 1.6g of dietary fiber.

sugar

Lemon juice has 63% less sugar than grapefruit - lemon juice has 2.5g of sugar per 100 grams and grapefruit has 6.9g of sugar.



Protein

protein

Lemon juice and grapefruit contain similar amounts of protein - lemon juice has 0.35g of protein per 100 grams and grapefruit has 0.77g of protein.

Fat

saturated fat

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

Vitamins

Vitamin C

Both lemon juice and grapefruit are high in Vitamin C. Lemon juice has 24% more Vitamin C than grapefruit - lemon juice has 38.7mg of Vitamin C per 100 grams and grapefruit has 31.2mg of Vitamin C.

Vitamin A

Grapefruit has more Vitamin A than lemon juice - grapefruit has 58ug of Vitamin A per 100 grams and lemon juice does not contain significant amounts.

Vitamin E

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

The B Vitamins

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

Grapefruit Lemon juice
Thiamin 0.043 MG 0.024 MG
Riboflavin 0.031 MG 0.015 MG
Niacin 0.204 MG 0.091 MG
Pantothenic acid 0.262 MG 0.131 MG
Vitamin B6 0.053 MG 0.046 MG
Folate 13 UG 20 UG

Minerals

calcium

Grapefruit has 267% more calcium than lemon juice - lemon juice has 6mg of calcium per 100 grams and grapefruit has 22mg of calcium.

iron

Lemon juice and grapefruit contain similar amounts of iron - lemon juice has 0.08mg of iron per 100 grams and grapefruit has 0.08mg of iron.

potassium

Lemon juice and grapefruit contain similar amounts of potassium - lemon juice has 103mg 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 juice contain significant amounts of quercetin.

Grapefruit Lemon juice
luteolin 0.6 mg ~
kaempferol 0.01 mg ~
myricetin 0.01 mg 0.02 mg
Quercetin 0.33 mg 0.37 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 juice contain small amounts of lutein + zeaxanthin.

Grapefruit Lemon juice
beta-carotene 686 UG 1 UG
alpha-carotene 3 UG ~
lycopene 1419 UG ~
lutein + zeaxanthin 5 UG 15 UG

Omega-3 and Omega-6

omega 3s

For omega-3 fatty acids, both grapefruit and lemon juice contain small amounts of alpha linoleic acid (ALA).

Grapefruit Lemon juice
alpha linoleic acid 0.008 G 0.009 G
Total 0.008 G 0.009 G

omega 6s

Comparing omega-6 fatty acids, both grapefruit and lemon juice contain small amounts of linoleic acid.

Grapefruit Lemon juice
linoleic acid 0.029 G 0.012 G
Total 0.029 G 0.012 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 juice (Lemon juice, raw) .

Grapefruit g

()
Daily Values (%)

Lemon juice g

()
KCAL %
calories
KCAL %
G %
carbohydrates
G %
G %
dietary fiber
G %
G sugar G
G %
total fat
G %
G %
saturated fat
G %
G monounsaturated fat G
G polyunsaturated fat G
G trans fat G
MG cholesterol MG
MG %
sodium
MG %
Vitamins and Minerals
UG %
Vitamin A
UG %
MG %
Vitamin C
MG %
IU %
Vitamin D
IU %
MG %
calcium
MG %
MG %
iron
MG %
MG %
magnesium
MG %
MG %
potassium
MG %
MG %
thiamin (Vit B1)
MG %
MG %
riboflavin (Vit B2)
MG %
MG %
niacin (Vit B3)
MG %
MG %
Vitamin B6
MG %
MG %
pantothenic acid (Vit B5)
MG %
UG %
folate (Vit B9)
UG %
UG %
Vitamin B12
UG %
MG %
Vitamin E
MG %
UG %
Vitamin K
UG %
G %
protein
G %
UG %
biotin (Vit B7)
UG %
MG %
choline
MG %
MG %
chlorine
MG %
UG %
chromium
UG %
MG %
copper
MG %
UG %
fluoride
UG %
UG %
iodine
UG %
MG %
manganese
MG %
UG %
molybdenum
UG %
MG %
phosphorus
MG %
UG %
selenium
UG %
MG %
zinc
MG %
G Water G
G Starch G
G Alcohol G