Carbs in Romaine Lettuce
Keto-friendlyHow many carbs are in romaine lettuce?
Romaine Lettuce has 2.2g net carbs per 100g — 4.3g total carbs minus 2.1g fiber — plus 2.1g protein, 0g fat, and 17 calories. 1 cup shredded (47g) works out to about 1g net carbs and 8 calories. That makes romaine lettuce very low in net carbs and lower than the typical vegetable, which averages about 18.3g net carbs per 100g. With this carb count, romaine lettuce fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is romaine lettuce keto-friendly?
Yes — romaine lettuce is keto-friendly. It has 2.2g net carbs per 100g (4.3g total carbs − 2.1g fiber). A typical serving — 1 cup shredded (47g) — is about 1g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 cup shredded | 1g | 2g | 1g | 8 |
| 100 g (3.5 oz) | 2.2g | 4.3g | 2.1g | 17 |
| 1 oz (28 g) | 0.6g | 1.2g | 0.6g | 5 |
How many calories are in romaine lettuce?
Romaine Lettuce has 17 calories per 100g. 1 cup shredded (47g) has about 8 calories. That's alongside 2.1g protein, 0g fat, and 2.2g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 17 |
| Total carbs | 4.3g |
| Net carbs | 2.2g |
| Fiber | 2.1g |
| Sugar | 2.1g |
| Sugar alcohols | 0g |
| Protein | 2.1g |
| Fat | 0g |
| Sodium | 8mg |
| Potassium | 247mg |
Source: Manufacturer-reported values (vegetables). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in romaine lettuce?
- Romaine Lettuce has 4.3g of total carbs and 2.2g of net carbs per 100 grams.
- How many net carbs are in romaine lettuce?
- Romaine Lettuce has 2.2g of net carbs per 100 grams (total carbs 4.3g minus 2.1g fiber).
- Is romaine lettuce keto-friendly?
- Yes — romaine lettuce is keto-friendly. It has 2.2g net carbs per 100g (4.3g total carbs − 2.1g fiber). A typical serving — 1 cup shredded (47g) — is about 1g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
- How many calories are in romaine lettuce?
- Romaine Lettuce has 17 calories per 100 grams.
- How many carbs are in 1 cup shredded of romaine lettuce?
- 1 cup shredded of romaine lettuce (47g) has about 1g net carbs, 2g total carbs, and 8 calories.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.