Carbs in Zucchini: The Quick Answer
Zucchini contains 2.0g of net carbs per 100g, calculated by subtracting 1.1g of dietary fiber from 3.1g of total carbohydrates. With 21.0 calories, 2.7g protein, and 0.4g fat per 100g, it is classified as Keto Friendly for carbohydrate content.
Net carbs — not total carbs — are what matter for keto and low-carb diets. Only net carbs raise blood sugar and affect insulin, which is why tracking them accurately is key to staying in ketosis. Use our Keto Macro Calculator to find your daily net carb limit based on your body and goals.
Is Zucchini Keto Friendly?
Zucchini is keto friendly with only 2.0g net carbs per 100g. It fits comfortably within the standard keto limit of 20–50g net carbs per day and can be included regularly on a ketogenic diet.
Best Low-Carb Pairings for Zucchini
Zucchini is already a smart low-carb choice. Here's how to build a great keto meal around it.
| Pair with | Best for | Why it works |
|---|---|---|
| Ground beef or turkey (as noodles) | Bolognese bowl | Spiralize and top with meat sauce — ~4g net carbs |
| Mozzarella and marinara (baked) | Pizza-style dish | Zucchini boats filled with meat and cheese — ~5g net carbs |
| Garlic butter (grilled) | BBQ side | Brush with garlic butter, grill 4 minutes — ~3g net carbs |
| Eggs (zucchini frittata) | Brunch | Grated zucchini in a baked egg frittata — ~3g net carbs |
How Net Carbs Are Calculated
Net carbs are calculated by subtracting dietary fiber (and sugar alcohols, if present) from total carbohydrates: Net Carbs = Total Carbs − Fiber. For Zucchini: 3.1g − 1.1g = 2.0g net carbs per 100g.
Dietary fiber is subtracted because it passes through the digestive system without being absorbed as glucose. It does not raise blood sugar or trigger an insulin response, making it irrelevant for carb counting on keto and low-carb diets.