| Food | Net Carbs / 100g | Keto Score |
|---|---|---|
| Avocado | 1.8g | ✅ Keto |
| Avocado — ½ Avocado (100g) | 1.8g | ✅ Keto |
| Blackberries | 4.3g | ✅ Keto |
| Blueberries — ¼ Cup (36g) | 4.3g | ✅ Keto |
| Strawberries — ½ Cup (76g) | 4.4g | ✅ Keto |
Fruit carbs vary dramatically — from avocados with just 1.8g net carbs per 100g to grapes and bananas that pack 20–24g per 100g. For people tracking carbohydrates on a ketogenic or low-carb diet, the specific fruit matters as much as the serving size.
Berries are consistently the lowest-carb fruit option. Strawberries contain 5.7g net carbs per 100g, raspberries 5.4g, and blackberries 4.9g — all manageable on a standard 20–50g daily net carb budget. Blueberries are slightly higher at 12.1g per 100g but remain moderate compared to tropical and high-sugar fruits.
A medium banana (118g) contains 23.8g net carbs — essentially a full day's carb allowance on strict keto. Mangoes, grapes, and dates are similarly high. The key for low-carb dieters is portion control and sticking to the lower-sugar berry varieties.
The best keto fruits are avocado (1.8g net carbs/100g), strawberries (5.7g), raspberries (5.4g), and blackberries (4.9g). Lemons and limes are also very low in net carbs when used in small amounts as flavoring.
A medium banana (118g) has 23.8g net carbs — 27g total carbs minus 3.2g dietary fiber. That's the full daily carb budget for strict keto. Even half a banana delivers 12.1g net carbs.
Blueberries are borderline keto. A 100g serving has 12.1g net carbs; a quarter cup (37g) has about 4.5g. In small portions they can fit a keto diet. Strawberries and raspberries are lower-carb alternatives.
Yes, but the type and portion size matter. Berries (strawberries, raspberries, blackberries) are the best low-carb choice. Avocado is technically a fruit and is extremely keto-friendly. High-sugar fruits like bananas, grapes, and mangoes are best avoided or eaten in very small portions.
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