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.
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.
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 7:91:2 and for lemon juice, 5:89:6 for protein, carbohydrates and fat from calories.
Macro Ratios from Calories:
| Grapefruit | Lemon juice | |
|---|---|---|
| Protein | 7% | 5% |
| Carbohydrates | 91% | 89% |
| Fat | 2% | 6% |
| Alcohol | ~ | ~ |
carbohydrates
Lemon juice and grapefruit contain similar amounts of 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 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 Grapefruit or Lemon juice .
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
()
|
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|---|---|---|---|---|---|---|---|
| KCAL % |
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5% | calories | 5% |
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KCAL % | |
| G % |
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5% | carbohydrates | 5% |
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G % | |
| G % |
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5% | dietary fiber | 5% |
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G % | |
| G | 5% | sugar | 5% | G | |||
| G % |
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5% | total fat | 5% |
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G % | |
| G % |
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5% | saturated fat | 5% |
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G % | |
| G | 5% | monounsaturated fat | 5% | G | |||
| G | 5% | polyunsaturated fat | 5% | G | |||
| G | 5% | trans fat | 5% | G | |||
| MG | 5% | cholesterol | 5% | MG | |||
| MG % |
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5% | sodium | 5% |
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MG % | |
| 5% | Vitamins and Minerals | 5% | |||||
| UG % |
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5% | Vitamin A | 5% |
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| MG % |
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5% | Vitamin C | 5% |
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| IU % |
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5% | Vitamin D | 5% |
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5% | calcium | 5% |
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5% | iron | 5% |
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5% | magnesium | 5% |
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5% | potassium | 5% |
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5% | thiamin (Vit B1) | 5% |
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5% | riboflavin (Vit B2) | 5% |
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5% | niacin (Vit B3) | 5% |
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5% | Vitamin B6 | 5% |
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5% | pantothenic acid (Vit B5) | 5% |
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5% | folate (Vit B9) | 5% |
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5% | Vitamin B12 | 5% |
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5% | Vitamin E | 5% |
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5% | Vitamin K | 5% |
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5% | protein | 5% |
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5% | biotin (Vit B7) | 5% |
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5% | choline | 5% |
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5% | chlorine | 5% |
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5% | chromium | 5% |
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5% | copper | 5% |
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5% | fluoride | 5% |
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5% | iodine | 5% |
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5% | manganese | 5% |
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5% | molybdenum | 5% |
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5% | phosphorus | 5% |
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5% | selenium | 5% |
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5% | zinc | 5% |
|
MG % | |
| G | 5% | Water | 5% | G | |||
| G | 5% | Starch | 5% | G | |||
| G | 5% | Alcohol | 5% | G | |||
FAQ
Does lemon juice or grapefruit contain more calories in 100 grams?Lemon juice and grapefruit contain similar amounts of calories - lemon juice has 22 calories in 100g and grapefruit has 42 calories.
Does lemon juice or grapefruit have more carbohydrates?
By weight, lemon juice and grapefruit contain similar amounts of carbs - lemon juice has 6.9g of carbs for 100g and grapefruit has 10.7g of carbohydrates.