Romaine Lettuce Hearts Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1.5 cups shredded (85g); per 100 g: 1g net carbs, 16 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in romaine lettuce hearts?
Romaine Lettuce Hearts — 1.5 cups shredded (85g) — has 0.9g net carbs: 2.5g total carbs minus 1.6g fiber, plus 1g protein, 0.2g fat, and 14 calories. Per 100g that is 1g net carbs (2.9g total carbs, 1.9g fiber) and 16 calories. That makes romaine lettuce hearts very low in net carbs and lower than the typical vegetable, which averages about 17.9g net carbs per 100g. With this carb count, romaine lettuce hearts fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is romaine lettuce hearts keto-friendly?
Yes — romaine lettuce hearts is keto-friendly. 1.5 cups shredded (85g) is 0.9g net carbs (2.5g total carbs − 1.6g fiber); per 100g that is 1g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1.5 cups shredded | 0.9g | 2.5g | 1g | 14 |
| 100 g (3.5 oz) | 1g | 2.9g | 1.2g | 16 |
| 1 oz (28 g) | 0.3g | 0.8g | 0.3g | 4 |
How many calories are in romaine lettuce hearts?
Romaine Lettuce Hearts — 1.5 cups shredded (85g) — has 14 calories, with 1g protein, 0.2g fat, and 0.9g net carbs. Per 100g: 16 calories and 1g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 16 |
| Total carbs | 2.9g |
| Net carbs | 1g |
| Fiber | 1.9g |
| Sugar | 1.3g |
| Sugar alcohols | 0g |
| Protein | 1.2g |
| Fat | 0.2g |
| Sodium | 8mg |
| Potassium | 291mg |
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 hearts?
- Romaine Lettuce Hearts (1.5 cups shredded, 85g) has 2.5g of total carbs and 0.9g of net carbs. Per 100 grams: 2.9g total, 1g net.
- How many net carbs are in romaine lettuce hearts?
- Romaine Lettuce Hearts has 0.9g of net carbs per 1.5 cups shredded (85g) — 2.5g total carbs minus 1.6g fiber.
- Is romaine lettuce hearts keto-friendly?
- Yes — romaine lettuce hearts is keto-friendly. 1.5 cups shredded (85g) is 0.9g net carbs (2.5g total carbs − 1.6g fiber); per 100g that is 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 hearts?
- Romaine Lettuce Hearts (1.5 cups shredded, 85g) has 14 calories; that is 16 calories per 100 grams.
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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.