Is grapefruit keto?
Grapefruit
Not keto No — grapefruit is not keto-friendly.
Half a grapefruit has about 11 g net carbs. If you love citrus, use lemon and lime instead.
Nutrition per serving
½ grapefruit · 123 g- Net carbs
- 11g
- Calories
- 52kcal
- Protein
- 0.9g
- Fat
- 0.2g
- Total carbs
- 13 g
- Fiber
- 2 g
One serving vs. a 20 g daily net-carb limit 55%
0.6× the daily limit
About 54.9 g of grapefruit adds up to 5 g net carbs — about 45% of a typical serving.
| Nutrient | Per serving | Per 100 g |
|---|---|---|
| Calories | 52 kcal | 42 kcal |
| Total carbohydrate | 13 g | 11 g |
| Dietary fiber | 2 g | 1.6 g |
| Net carbs | 11 g | 9.1 g |
| Sugars | 8.5 g | 6.9 g |
| Protein | 0.9 g | 0.8 g |
| Fat | 0.2 g | 0.1 g |
Portion calculator
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Better keto swaps for grapefruit
Keto-friendly fruit & sweet swaps 6 alternatives with carb comparisons and recipes Read guide Frequently asked questions
Is grapefruit keto?
No — grapefruit is not keto-friendly. Half a grapefruit has about 11 g net carbs. If you love citrus, use lemon and lime instead.
How many net carbs are in grapefruit?
½ grapefruit (123 g) of grapefruit has about 11 g net carbs (13 g total carbs minus 2 g fiber). Per 100 g, that's 9.1 g net carbs.
How much grapefruit can I eat on keto?
About 54.9 g of grapefruit adds up to 5 g net carbs — about 45% of a typical serving. On a typical 20 g daily limit, one serving uses about 55% of your carbs.
What is a good keto substitute for grapefruit?
Try lemon, raspberries. See our full guide: keto-friendly fruit & sweet swaps.
