KETO VERDICTLIMIT
High in natural sugar for keto: ~9.3g net carbs per 100ml. An 8 oz (240ml) glass is ~22g net—enough to disrupt ketosis. If used at all, keep to splashes or dilute heavily.
Is Grapefruit Juice Keto?
Juices
YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 ml (as consumed or prepared). 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.
9.3gnet carbs in your portion
- Total carbs
- 10.7g
- Fiber
- 1.4g
- Protein
- 0.5g
- Fat
- 0.1g
- Calories
- 39
High in natural sugar for keto: ~9.3g net carbs per 100ml. An 8 oz (240ml) glass is ~22g net—enough to disrupt ketosis. If used at all, keep to splashes or dilute heavily.
- Net carbs (100 ml)9.3g
- Protein (100 ml)0.5g
- Fat (100 ml)0.1g
- Keto verdictLimit portions
NUTRITION FACTS
Per 100 ml (as consumed or prepared)
Net Carbs
9.3g
Total Carbs
10.7g
Fiber
1.4g
Protein
0.5g
Fat
0.1g
Calories
39
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.
WHY TO LIMIT IT ON KETO
- High carb density: ~9.3g net per 100ml is steep for keto
- This item contains the nutrients or compounds listed above; evidence for specific health outcomes depends on dose, preparation, and individual context.
- Typical serving (~240ml) delivers ~22g net carbs
- Fiber largely removed during juicing
- Use only as a flavor accent (teaspoon–tablespoon) or avoid on strict keto
- Whole fruit still high-carb; consider Lemon or Sparkling Water for citrus vibe
PREPARATION SUGGESTIONS
MINIMAL PORTION
Limit to 1–2 oz and top with Sparkling Water; track carbs carefully.
WHOLE GRAPEFRUIT INSTEAD
If including citrus, a small portion of whole fruit offers more fiber (still high-carb—plan accordingly).
FLAVOR EXTRACT ALTERNATIVE
Use grapefruit flavor or a few drops of peel oil (food-grade) in water for aroma without sugars.
COOKING INGREDIENT
Use 1–2 tbsp in marinades/sauces so carbs are spread across multiple servings.
SPRITZER
Mix 1 oz juice with 7–8 oz Club Soda or Sparkling Water and a squeeze of Lime.
CITRUS WATER
Float grapefruit slices in water for subtle flavor while consuming little juice.