KETO VERDICTMODERATE
Grapefruit is moderately keto-friendly at ~8.1g net carbs per 100g. Half a fruit (~123g) lands around ~10g net carbs, so it can fit if portions are controlled and macros tracked carefully.
Is Grapefruit Keto?
Citrus
YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 g (as listed by source). Curated estimate; estimated values.
How this is calculated
total carbohydrate - fiber. Each published value is multiplied by your portion divided by the reference amount. No extra fiber, sugar alcohol or allulose deductions are applied here.
Grams and milliliters are not interchangeable. Household measures require a food-specific conversion; check your scale or product label.
8.1gnet carbs in your portion
- Total carbs
- 9.7g
- Fiber
- 1.6g
- Protein
- 0.8g
- Fat
- 0.1g
- Calories
- 42
Grapefruit is moderately keto-friendly at ~8.1g net carbs per 100g. Half a fruit (~123g) lands around ~10g net carbs, so it can fit if portions are controlled and macros tracked carefully.
- Net carbs (100 g)8.1g
- Protein (100 g)0.8g
- Fat (100 g)0.1g
- Keto verdictEnjoy in moderation
NUTRITION FACTS
Per 100 g (as listed by source)
Net Carbs
8.1g
Total Carbs
9.7g
Fiber
1.6g
Protein
0.8g
Fat
0.1g
Calories
42
Source: Curated estimate
Source fit: curated estimate; not an exact source match
Net-carb calculation: total carbohydrate - fiber
A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.
Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.
HOW TO ENJOY IT ON KETO
- Moderate net carbs: 8.1g/100g; a half fruit can fit many daily carb budgets
- Low calorie and high water content support satiety for minimal calories
- Adds bright flavor to protein- and fat-forward meals without large carb loads
- Contains naringin/naringenin—polyphenols under study for metabolic effects
- Reasonable fiber for a citrus fruit helps blunt sugar absorption
- Versatile in salads, savory dishes, or diluted in drinks
PREPARATION SUGGESTIONS
BREAKFAST HALF
Halve and spoon sections; add a sprinkle of cinnamon and a touch of keto sweetener if desired.
SALAD ADDITION
Segment and toss with Arugula, Avocado, and olive-oil vinaigrette.
BROILED GRAPEFRUIT
Dot with butter and a pinch of salt; broil 3–4 minutes to intensify sweetness.
SPARKLING DRINK
Mix a small squeeze/segment with Sparkling Water and a pinch of salt.
SEAFOOD PAIRING
Combine segments with Shrimp or Crab salad for a bright, protein-rich meal.
BITTER GREEN SMOOTHIE
Blend a small portion with Spinach, ice, and a splash of Heavy Cream; sweeten to taste.