1 cup (medium) of Grapefruit juice (240 g) has 94 calories. That works out to 39 calories per 100 g. It contains 22.1 g of carbs, 1.4 g of protein, 0.2 g of fat and 0.5 g of fiber. Its 74.4 mg of Vitamin C covers 83% of the Daily Value. Its glycemic index is 48 (low), so it raises blood sugar slowly.

What is Grapefruit juice?

Grapefruit juice is made by squeezing the citrus fruit, which is thought to have originated in the Caribbean. It may be freshly pressed or sold bottled, and its colour ranges from pale yellow to pink depending on the fruit.

Its flavour is tangy and sweet with a pleasantly bitter edge; it can be served strained or with some pulp. Around the world, people often drink it chilled at breakfast, or use it in drinks and cocktails. It provides vitamin C and is low in calories, with most of its energy coming from carbohydrates. For a milder taste, dilute it with water, or serve a small glass alongside savoury breakfast foods.

Grapefruit juice Nutrition Facts

Selected: 100 g

KCAL / 100G

Carbs

9.2g

· 3% DV

Protein

0.6g

· 1% DV

Fat

0.1g

· 0% DV

Fiber

0.2g

· 1% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 92% · Protein 6% · Fat 2%

Grapefruit juice Vitamins & Minerals

Vitamins

Vitamin C

31mg · 34% DV

0.21mg · 4% DV

0.04mg · 3% DV

Folate

13µg · 3% DV

Minerals

Potassium ⭐

140mg · 4% DV

Magnesium

8mg · 2% DV

Phosphorus

13mg · 2% DV

Calcium

9mg · 1% DV

How Nutritious Is Grapefruit juice?

Nutrient density

Medium

55/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

38/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Grapefruit juice Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

4.4

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Grapefruit juice

To burn the 39 calories in 100 g:

🚶

10min

Walking (5 km/h)

🏃

4min

Running (8 km/h)

🚴

5min

Cycling

🏊

5min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Grapefruit juice Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Grapefruit juice Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Grapefruit juice Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Grapefruit juice Fat Profile

SATURATED

0.01g

MONOUNSATURATED

0.01g

POLYUNSATURATED

0.02g

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1 kcal

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Frequently Asked Questions About Grapefruit juice

What medicines should you avoid taking with grapefruit juice?

Grapefruit juice interacts with some medicines, including certain statins, blood-pressure drugs and transplant medicines, by changing how the body processes them. The effect depends on the specific medicine, and separating the juice and dose by a few hours may not prevent it. Ask your pharmacist or doctor about your medication.

What are the benefits of grapefruit juice?

Grapefruit juice provides vitamin C and fluid, but it is not a treatment or a guaranteed way to prevent illness. Since juice contains less fiber than whole grapefruit, eating the fruit is generally more filling.

Does grapefruit juice help you lose weight?

No, grapefruit juice does not burn fat or cause weight loss by itself. Replacing a higher-calorie sugary drink with it may reduce your overall intake, but drinking juice is usually less filling than eating whole grapefruit.

How do you make grapefruit juice less bitter?

To make grapefruit juice less bitter, keep the white pith and seeds out while squeezing, since they can add bitterness. Choosing a ripe grapefruit and combining the juice with sweeter fruit can also soften its sharp taste.

Can grapefruit juice raise blood sugar?

Yes, grapefruit juice can raise blood sugar because it contains naturally occurring sugars. Juicing removes much of the fruit’s fiber, so it may affect you differently from eating whole grapefruit; if you have diabetes, follow your glucose readings and meal plan.

How do you make fresh grapefruit juice?

Wash the grapefruit, cut it in half, and squeeze it with a citrus juicer. Strain out seeds if you prefer a smoother drink, and serve it soon after squeezing for the freshest taste.

Is grapefruit juice acidic enough to cause heartburn?

Yes, grapefruit juice can trigger heartburn in some people because it is acidic. If you notice burning or reflux after drinking it, try having less with food or avoid it; it is not necessary to drink it on an empty stomach.

Can you freeze grapefruit juice?

Yes, grapefruit juice freezes well enough for later use, though its texture and flavor may change after thawing. Use a freezer-safe container and leave room for expansion; thaw it in the refrigerator and stir before serving.

How long does fresh grapefruit juice last in the fridge?

Fresh grapefruit juice is best soon after squeezing. If you need to keep it, refrigerate it promptly in a tightly covered container; discard it if its smell, appearance, or taste has changed.

Is grapefruit juice a good replacement for orange juice?

Grapefruit juice can replace orange juice in many drinks and recipes, but it has a more bitter, tart flavor. It is not a safe swap for everyone: grapefruit can interact with certain medicines, while orange juice does not have the same well-known interaction.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026