How much fiber does lettuce have?

Raw, shredded iceberg lettuce has 0.9 grams of fiber in a 1-cup serving, according to the U.S. Department of Agriculture. Romaine lettuce has 1 gram of fiber in a 1-cup serving.

All lettuces are not alike when it comes to fiber content. Red leaf lettuce only has 0.3 grams of fiber, while butterhead lettuce, which includes Boston and Bibb, has 0.6 grams in a 1-cup serving. Green leaf lettuce comes in at 0.5 grams. Lettuce is not generally considered to be a high-fiber food, but individuals who have trouble digesting fiber might choose small portions of Bibb or red leaf for their salads and sandwiches.