Romaine lettuce can be eaten raw or cooked.
In the store, look for romaine that is bright green with crisp heads.
For maximum freshness, wrap washed romaine loosely in paper towels and store in the refrigerator in a large, sealed plastic bag or airtight container.
Prior to consumption, remove leaves from the core, fill sink with cold water and submerge leaves to wash. Rinse leaves in cold running water to remove any remaining soil. Pat dry to remove excess moisture or use a salad spinner.
Like many other dark, leafy greens, romaine is packed with antioxidants. Romaine is an excellent source of vitamin A, vitamin K, and folate. It’s also a good source of dietary fiber, manganese, potassium, copper, iron, biotin, vitamin B1, and vitamin C.