Grapefruit vs. Tomato
Nutrition comparison of Grapefruit and Tomato
Ever wonder how your favorite foods stack up against each other in terms of nutrition?
We compared the nutritional contents of
grapefruit
versus
tomato
(100g each)
below using 2020 USDA and NIH data[1].
For a quick recap of significant nutrients and differences in grapefruit and tomato:
- Both tomato and grapefruit are high in Vitamin C.
- Tomato has 57% less calories than grapefruit.
- Tomato has 62% less sugar than grapefruit.
- Tomato has 64% less carbohydrates than grapefruit.
- Tomato has more niacin, however, grapefruit contains more pantothenic acid.
- Tomato is a great source of potassium.
USDA sources for nutritional information: Grapefruit (Grapefruit, raw, pink and red, all areas) and Tomato (Tomatoes, red, ripe, raw, year round average) . Have a correction or suggestions? Shoot us an email.
Calories and Carbs
calories
Tomato has 57% less calories than grapefruit - tomato has 18 calories per 100 grams and grapefruit has 42 calories.
For macronutrient ratios, grapefruit is lighter in protein, heavier in carbs and lighter in fat compared to tomato per calorie. Grapefruit has a macronutrient ratio of 7:91:3 and for tomato, 17:75:9 for protein, carbohydrates and fat from calories.
Macro Ratios from Calories:
| Grapefruit | Tomato | |
|---|---|---|
| Protein | 7% | 17% |
| Carbohydrates | 91% | 75% |
| Fat | 3% | 9% |
| Alcohol | ~ | ~ |
carbohydrates
Tomato has 64% less carbohydrates than grapefruit - tomato has 3.9g of total carbs per 100 grams and grapefruit has 10.7g of carbohydrates.
dietary fiber
Grapefruit has 33% more dietary fiber than tomato - tomato has 1.2g of dietary fiber per 100 grams and grapefruit has 1.6g of dietary fiber.
sugar
Tomato has 62% less sugar than grapefruit - tomato has 2.6g of sugar per 100 grams and grapefruit has 6.9g of sugar.
Protein
protein
Tomato and grapefruit contain similar amounts of protein - tomato has 0.88g of protein per 100 grams and grapefruit has 0.77g of protein.
Fat
saturated fat
Both tomato and grapefruit are low in saturated fat - tomato has 0.03g of saturated fat per 100 grams and grapefruit has 0.02g of saturated fat.
Vitamins
Vitamin C
Both tomato and grapefruit are high in Vitamin C. Grapefruit has 128% more Vitamin C than tomato - tomato has 13.7mg of Vitamin C per 100 grams and grapefruit has 31.2mg of Vitamin C.
Vitamin A
Tomato and grapefruit contain similar amounts of Vitamin A - tomato has 42ug of Vitamin A per 100 grams and grapefruit has 58ug of Vitamin A.
Vitamin E
Tomato and grapefruit contain similar amounts of Vitamin E - tomato has 0.54mg of Vitamin E per 100 grams and grapefruit has 0.13mg of Vitamin E.
Vitamin K
Tomato has more Vitamin K than grapefruit - tomato has 7.9ug of Vitamin K per 100 grams and grapefruit does not contain significant amounts.
The B Vitamins
Tomato has more niacin, however, grapefruit contains more pantothenic acid. Both grapefruit and tomato contain significant amounts of thiamin, riboflavin, Vitamin B6 and folate.
| Grapefruit | Tomato | |
|---|---|---|
| Thiamin | 0.043 MG | 0.037 MG |
| Riboflavin | 0.031 MG | 0.019 MG |
| Niacin | 0.204 MG | 0.594 MG |
| Pantothenic acid | 0.262 MG | 0.089 MG |
| Vitamin B6 | 0.053 MG | 0.08 MG |
| Folate | 13 UG | 15 UG |
Minerals
calcium
Grapefruit has 120% more calcium than tomato - tomato has 10mg of calcium per 100 grams and grapefruit has 22mg of calcium.
iron
Tomato and grapefruit contain similar amounts of iron - tomato has 0.27mg of iron per 100 grams and grapefruit has 0.08mg of iron.
potassium
Tomato is a great source of potassium and it has 76% more potassium than grapefruit - tomato has 237mg 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 tomato contain significant amounts of quercetin.
| Grapefruit | Tomato | |
|---|---|---|
| luteolin | 0.6 mg | ~ |
| kaempferol | 0.01 mg | 0.09 mg |
| myricetin | 0.01 mg | 0.13 mg |
| Quercetin | 0.33 mg | 0.58 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 tomato contain significant amounts of beta-carotene and lycopene.
| Grapefruit | Tomato | |
|---|---|---|
| beta-carotene | 686 UG | 449 UG |
| alpha-carotene | 3 UG | 101 UG |
| lycopene | 1419 UG | 2573 UG |
| lutein + zeaxanthin | 5 UG | 123 UG |
Omega-3 and Omega-6
omega 3s
For omega-3 fatty acids, both grapefruit and tomato contain small amounts of alpha linoleic acid (ALA).
| Grapefruit | Tomato | |
|---|---|---|
| alpha linoleic acid | 0.008 G | 0.003 G |
| Total | 0.008 G | 0.003 G |
omega 6s
Comparing omega-6 fatty acids, tomato has more linoleic acid than grapefruit per 100 grams.
| Grapefruit | Tomato | |
|---|---|---|
| linoleic acid | 0.029 G | 0.08 G |
| Total | 0.029 G | 0.08 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 Tomato (Tomatoes, red, ripe, raw, year round average) .
Grapefruit g
()
|
Daily Values (%) |
Tomato g
()
|
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|---|---|---|---|---|---|---|---|
| KCAL % |
|
5% | calories | 5% |
|
KCAL % | |
| G % |
|
5% | carbohydrates | 5% |
|
G % | |
| G % |
|
5% | dietary fiber | 5% |
|
G % | |
| G | 5% | sugar | 5% | G | |||
| G % |
|
5% | total fat | 5% |
|
G % | |
| G % |
|
5% | saturated fat | 5% |
|
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 % |
|
5% | sodium | 5% |
|
MG % | |
| 5% | Vitamins and Minerals | 5% | |||||
| UG % |
|
5% | Vitamin A | 5% |
|
UG % | |
| MG % |
|
5% | Vitamin C | 5% |
|
MG % | |
| IU % |
|
5% | Vitamin D | 5% |
|
IU % | |
| MG % |
|
5% | calcium | 5% |
|
MG % | |
| MG % |
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5% | iron | 5% |
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MG % | |
| MG % |
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5% | magnesium | 5% |
|
MG % | |
| MG % |
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5% | potassium | 5% |
|
MG % | |
| MG % |
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5% | thiamin (Vit B1) | 5% |
|
MG % | |
| MG % |
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5% | riboflavin (Vit B2) | 5% |
|
MG % | |
| MG % |
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5% | niacin (Vit B3) | 5% |
|
MG % | |
| MG % |
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5% | Vitamin B6 | 5% |
|
MG % | |
| MG % |
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5% | pantothenic acid (Vit B5) | 5% |
|
MG % | |
| UG % |
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5% | folate (Vit B9) | 5% |
|
UG % | |
| UG % |
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5% | Vitamin B12 | 5% |
|
UG % | |
| MG % |
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5% | Vitamin E | 5% |
|
MG % | |
| UG % |
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5% | Vitamin K | 5% |
|
UG % | |
| G % |
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5% | protein | 5% |
|
G % | |
| UG % |
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5% | biotin (Vit B7) | 5% |
|
UG % | |
| MG % |
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5% | choline | 5% |
|
MG % | |
| MG % |
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5% | chlorine | 5% |
|
MG % | |
| UG % |
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5% | chromium | 5% |
|
UG % | |
| MG % |
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5% | copper | 5% |
|
MG % | |
| UG % |
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5% | fluoride | 5% |
|
UG % | |
| UG % |
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5% | iodine | 5% |
|
UG % | |
| MG % |
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5% | manganese | 5% |
|
MG % | |
| UG % |
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5% | molybdenum | 5% |
|
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| MG % |
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5% | phosphorus | 5% |
|
MG % | |
| UG % |
|
5% | selenium | 5% |
|
UG % | |
| MG % |
|
5% | zinc | 5% |
|
MG % | |
| G | 5% | Water | 5% | G | |||
| G | 5% | Starch | 5% | G | |||
| G | 5% | Alcohol | 5% | G | |||
FAQ
Does tomato or grapefruit contain more calories in 100 grams?Tomato has 60% less calories than grapefruit - tomato has 18 calories in 100g and grapefruit has 42 calories.
Does tomato or grapefruit have more carbohydrates?
By weight, tomato has 60% fewer carbohydrates than grapefruit - tomato has 3.9g of carbs for 100g and grapefruit has 10.7g of carbohydrates.