The following nutritional values are for 1 cup (55 grams) of raw, chopped Butterhead Lettuce provided by the USDA National Nutrient Database for Standard Reference, Release 22 (2009):
| Calories | 7 |
|---|---|
| Protein | .74g |
| Fiber | .6 g |
| Potassium | 131 mg |
| Calcium | 19 mg |
| Phosphorus | 18 mg |
| Magnesium | 7 mg |
| Choline | 4.6 mg |
| Vitamin C | 2.0 mg |
| Iron | .68 mg |
| Niacin | .196 mg |
| Zinc | .11 mg |
| Vitamin E | .10 mg |
| Betaine | .10 mg |
