Lettuce (Lactuca sativa) is an annual plant of the daisy family, Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads ...

Here's what RDs want you to know about iceberg lettuce nutrition facts and fiction. It can feel like we have tons more options for food these days—chickpea pizza crust and pasta, anyone?