"It has pale green leaves with a slightly less bitter ... potassium and a bit of calcium, and is low in calories. What's with iceberg lettuce's reputation for not having nutritional value, then?

The average lettuce has less than 10 calories per shredded cup ... With a long, upright head of crisp, pale green leaves sporting crunchy midribs, romaineparticularly the lighter leaves toward ...

Romaine Lettuce: With elongated, dark green leaves and a slightly bitter taste, it's a staple in Caesar salads. Butterhead Lettuce: Its soft, buttery leaves have a mild flavor, making it a ...