Calories in Lettuce, Boston, raw
Generic food Raw Vegetables
Lettuce, Boston, raw contains 18 kcal per 100 g. A typical serving of 1 cup (25 g) provides about 5 kcal.
Roughly 74% of its calories come from carbohydrates, with 20% from protein and 6% from fat (estimated with general energy factors).
That is less energy than the typical item in lettuce and lettuce salads on FoodFactly, where the median is 25 kcal per 100 g across 13 foods.
100 g provides 61% of the Daily Value for Vitamin K, 42% of the Daily Value for Vitamin A and 10% of the Daily Value for Vitamin C.
The data comes from the USDA Food and Nutrient Database for Dietary Studies (FNDDS), which calculates values from recipes of the ingredients.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 18 kcal | |
| Total fat C | 0.11 g | 0.1% |
| Saturated fat C | 0.028 g | 0.1% |
| Cholesterol C | 0 mg | 0% |
| Sodium C | 25 mg | 1% |
| Total carbohydrates C | 3.3 g | 1% |
| Dietary fiber C | 0.9 g | 3% |
| Total sugars C | 0.48 g | |
| Protein C | 0.88 g | 2% |
| Vitamin A C | 375 µg | 42% |
| Vitamin C C | 9.3 mg | 10% |
| Vitamin D C | 0 µg | 0% |
| Vitamin E C | 0.15 mg | 1% |
| Vitamin K C | 73.2 µg | 61% |
| Thiamin (B1) C | 0.061 mg | 5% |
| Riboflavin (B2) C | 0.077 mg | 6% |
| Niacin (B3) C | 0.33 mg | 2% |
| Vitamin B6 C | 0.074 mg | 4% |
| Folate (B9) C | 36 µg | 9% |
| Vitamin B12 C | 0 µg | 0% |
| Choline C | 11.8 mg | 2% |
| Calcium C | 43 mg | 3% |
| Iron C | 0.4 mg | 2% |
| Magnesium C | 12 mg | 3% |
| Phosphorus C | 24 mg | 2% |
| Potassium C | 321 mg | 7% |
| Zinc C | 0.3 mg | 3% |
| Copper C | 0.038 mg | 4% |
| Selenium C | 1.5 µg | 3% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 20%
- Carbohydrates 74%
- Fat 6%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein0.88 gin the lowest quarter of lettuce and lettuce salads (median 1.3 g)
- Fiber0.9 gin the lowest quarter of lettuce and lettuce salads (median 1.4 g)
- Sugars0.48 gin the lowest quarter of lettuce and lettuce salads (median 1.6 g)
- Fat0.11 gin the lowest quarter of lettuce and lettuce salads (median 0.66 g)
- Saturated fat0.028 gin the lowest quarter of lettuce and lettuce salads (median 0.086 g)
- Sodium25 mgin the lowest quarter of lettuce and lettuce salads (median 39 mg)
- Protein per 100 kcal4.9 gprotein density, useful for comparing foods with different calorie levels
- Water95 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Fats and cholesterol (2)
| Monounsaturated fat C | 0.009 g |
|---|---|
| Polyunsaturated fat C | 0.12 g |
Individual fatty acids (19)
| EPA (omega-3, 20:5 n-3) C | 0 g |
|---|---|
| DHA (omega-3, 22:6 n-3) C | 0 g |
| Linoleic acid (omega-6, 18:2) C | 0.034 g |
| SFA 4:0 C | 0 g |
| SFA 6:0 C | 0 g |
| SFA 8:0 C | 0 g |
| SFA 10:0 C | 0 g |
| SFA 12:0 C | 0 g |
| SFA 14:0 C | 0 g |
| SFA 16:0 C | 0.025 g |
| SFA 18:0 C | 0.003 g |
| MUFA 18:1 C | 0.006 g |
| PUFA 18:3 C | 0.081 g |
| PUFA 20:4 C | 0 g |
| MUFA 16:1 C | 0.002 g |
| PUFA 18:4 C | 0 g |
| MUFA 20:1 C | 0 g |
| MUFA 22:1 C | 0 g |
| PUFA 22:5 n-3 (DPA) C | 0 g |
Carotenoids (6)
| Beta-carotene C | 4,500 µg |
|---|---|
| Lycopene C | 0 µg |
| Lutein + zeaxanthin C | 1,720 µg |
| Retinol C | 0 µg |
| Carotene, alpha C | 0 µg |
| Cryptoxanthin, beta C | 0 µg |
Other components (8)
| Water C | 95 g |
|---|---|
| Alcohol C | 0 g |
| Caffeine C | 0 mg |
| Theobromine C | 0 mg |
| Folic acid C | 0 µg |
| Folate, food C | 36 µg |
| Vitamin E, added C | 0 mg |
| Vitamin B-12, added C | 0 µg |
Other forms of Lettuce
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Lettuce, butterhead (includes boston and bibb types), raw Raw | 13 | 1.4 g | 2.2 g | 0.22 g |
| Lettuce, red leaf, raw Raw | 13 | 1.3 g | 2.3 g | 0.22 g |
| Romaine lettuce, raw Raw | 17 | 1.2 g | 3.3 g | 0.3 g |
| Iceberg lettuce, raw Raw | 14 | 0.9 g | 3 g | 0.14 g |
| Lettuce, green leaf, raw Raw | 15 | 1.4 g | 2.9 g | 0.15 g |
| Lettuce, iceberg, raw Raw | 15 | 0.74 g | 3.4 g | 0.074 g |
| Lettuce, romaine, green, raw Raw | 18 | 0.98 g | 4.1 g | 0.071 g |
| Lettuce, leaf, red, raw Raw | 15 | 0.88 g | 3.3 g | 0.11 g |
| Lettuce, leaf, green, raw Raw | 19 | 1.1 g | 4.1 g | 0.16 g |
| Lettuce, raw Raw | 20 | 0.92 g | 3.7 g | 0.1 g |
| Lettuce, arugula, raw Raw | 25 | 2.6 g | 3.7 g | 0.66 g |
| Lettuce, salad with assorted vegetables including tomatoes and/or carrots, no dressing | 24 | 1.1 g | 4.6 g | 0.2 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Cucumber, with peel, raw Raw | 15 | 0.65 g | 3.6 g | 0.11 g |
| Celery, raw Raw | 14 | 0.69 g | 3 g | 0.17 g |
| Zucchini, raw Raw | 17 | 1.2 g | 3.1 g | 0.32 g |
| Tomato, red, ripe, raw Raw | 18 | 0.88 g | 3.9 g | 0.2 g |
| Green bell pepper, raw Raw | 20 | 0.86 g | 4.6 g | 0.17 g |
| White mushrooms, raw Raw | 22 | 3.1 g | 3.3 g | 0.34 g |
| Cauliflower, raw Raw | 25 | 1.9 g | 5 g | 0.28 g |
| Asparagus, raw Raw | 20 | 2.2 g | 3.9 g | 0.12 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw lettuce?
100 g of raw lettuce has 18 kcal. 1 cup (25 g): about 5 kcal. 1 leaf (8 g): about 1 kcal. Guideline amount in salad (50 g): about 9 kcal.
How much protein is in raw lettuce?
Raw lettuce contains 0.88 g of protein per 100 g (2% of the 50 g Daily Value), or 0.22 g in 1 cup (25 g). About 20% of its calories come from protein. Compared with other lettuce and lettuce salads, that is in the lowest quarter (median 1.3 g).
How many carbs are in raw lettuce?
Raw lettuce has 3.3 g of total carbohydrates per 100 g, including 0.9 g of fiber and 0.48 g of sugars.
How much fat is in raw lettuce?
Raw lettuce contains 0.11 g of fat per 100 g, of which 0.028 g is saturated (0.1% of the Daily Value).
What vitamins and minerals does raw lettuce contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamin K (61% DV), Vitamin A (42% DV) and Vitamin C (10% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw lettuce?
100 g contains 25 mg of sodium, 1% of the 2,300 mg Daily Value.
Where does this nutrition data come from?
From USDA FoodData Central: FNDDS (Survey), record dated October 31, 2024. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: FNDDS (Survey), record 2709790. License: CC0 1.0 (U.S. public domain). Source record dated October 31, 2024. Imported November 6, 2026.
Last updated: . Data quality score: 100/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.