[CharlesWayneCT]

Lettuce is really a useless thing in a diet anyway, no calories, almost no nutrients, and there are much better sources for what it does have.

[SMGFan]

more nutrition than iceberg

https://en.wikipedia.org/wiki/Romaine_lettuce#Nutrition

[fwdude]

Lettuce is really a useless thing in a diet anyway, no calories, almost no nutrients, and there are much better sources for what it does have.

You're probably right regarding the run-of-the-mill iceberg lettuce varieties. But Romaine is actually very high in some nutrients, including vitamins C, K and A.