The Quick Answer
1 Cup (148g) of Blueberries contains 17.9g net carbs and 84 calories. Net carbs are calculated by subtracting 3.6g of dietary fiber from 21.5g of total carbohydrates. This serving size weighs approximately 148g.
All nutrition data is sourced from the USDA FoodData Central database using raw, fresh blueberries values.
Is 1 Cup (148g) of Blueberries Keto Friendly?
With 17.9g net carbs, 1 Cup (148g) of Blueberries is moderate in carbs. Occasional consumption may fit a low-carb diet if the rest of your day's intake is very low.
Net carbs are what matter on a ketogenic or low-carb diet — not total carbs. Only net carbs raise blood sugar and trigger insulin. Use our Keto Macro Calculator to find your personal daily net carb limit.
Best Low-Carb Swaps for 1 Cup (148g) of Blueberries
1 Cup (148g) of Blueberries is high in carbs. If you're eating low-carb or keto, these swaps deliver the same satisfaction with a fraction of the net carbs.
| Instead of | Try this | Why it helps |
|---|---|---|
| 1 cup blueberries (~17g net carbs) | 1 cup raspberries (~7g net carbs) | Same volume, same berry experience — 10g fewer net carbs |
| Blueberries in oatmeal | Raspberries in chia pudding | Lower-carb berry in a lower-carb breakfast base |
How Net Carbs Are Calculated
Net carbs = Total Carbs − Dietary Fiber. For 1 Cup (148g) of Blueberries: 21.5g − 3.6g = 17.9g net carbs. Fiber is subtracted because it passes through the digestive system unabsorbed and does not raise blood sugar or trigger an insulin response.
Frequently Asked Questions
Nutrition data sourced from USDA FoodData Central. Serving weight is an average; actual weight may vary slightly.