Carbs in Portobello Mushroom
Portobello Mushroom (per 100 g) contains 29.7g total carbs, 29g net carbs, 3.5g fat, 6.9g protein, and 179 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

29g
Net carbs
29.7g
Total carbs
0.7g
Fiber
6.9g
Protein
3.5g
Fat
179
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 29g | 29.7g | 6.9g | 179 |
| 1 oz (28 g) | 8.1g | 8.3g | 1.9g | 50 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 179 |
| Total carbs | 29.7g |
| Net carbs | 29g |
| Fiber | 0.7g |
| Sugar | 2.8g |
| Sugar alcohols | 0g |
| Protein | 6.9g |
| Fat | 3.5g |
| Sodium | 214mg |
| Potassium | 0mg |
Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in portobello mushroom?
- Portobello Mushroom has 29.7g of total carbs and 29g of net carbs per 100 grams.
- How many net carbs are in portobello mushroom?
- Portobello Mushroom has 29g of net carbs per 100 grams (total carbs 29.7g minus 0.7g fiber).
- Is portobello mushroom keto-friendly?
- Portobello Mushroom has 29g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
- How many calories are in portobello mushroom?
- Portobello Mushroom has 179 calories per 100 grams.



