Carbs in Portabella Mushroom
Keto-friendlyPortabella Mushroom (per 100 g) contains 3.6g total carbs, 2.4g net carbs, 0g fat, 2.4g protein, and 24 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

2.4g
Net carbs
3.6g
Total carbs
1.2g
Fiber
2.4g
Protein
0g
Fat
24
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 2.4g | 3.6g | 2.4g | 24 |
| 1 oz (28 g) | 0.7g | 1g | 0.7g | 7 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 24 |
| Total carbs | 3.6g |
| Net carbs | 2.4g |
| Fiber | 1.2g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 2.4g |
| Fat | 0g |
| Sodium | 18mg |
| Potassium | 0mg |
Source: Open Food Facts (Ostrom's). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log portabella mushroom in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
Frequently asked questions
- How many carbs are in portabella mushroom?
- Portabella Mushroom has 3.6g of total carbs and 2.4g of net carbs per 100 grams.
- How many net carbs are in portabella mushroom?
- Portabella Mushroom has 2.4g of net carbs per 100 grams (total carbs 3.6g minus 1.2g fiber).
- Is portabella mushroom keto-friendly?
- Yes — with 2.4g net carbs per 100g, portabella mushroom fits a ketogenic diet in normal portions.
- How many calories are in portabella mushroom?
- Portabella Mushroom has 24 calories per 100 grams.



