i love me some Romaine Lettuce!
Romaine or cos lettuce is the worst food in the world. 
oh yea? why is that?
Tasteless, watery and gross. I'm not a rabbit. It apparently reached the West via Rome and they should have not brought it over.
how did it get so popular ?
I'm guessing because it's easy to grown and very widely available year-round, nothing to do with taste.
ah i  get it now.. well you have convinced me! i hate it as well.
be braised or made into soup. The thick ribs, especially on the older outer leaves, should have a milky fluid that gives the romaine its typically bitter herb taste.
In North American supermarkets, romaine is widely available year-round.
Nutrition.
As with other dark leafy greens, the antioxidants found in romaine lettuce are believed to help prevent cancer.
Food safety issues.
From November 2017 through January 2018, the Public Health Agency of Canada (PHA) identified romaine as being linked to illness
cos" to the name of the Greek island of Cos, from which the lettuce was presumably introduced. Other authorities trace "cos" to the Arabic word for lettuce, "" .
It apparently reached Western Europe via Rome, as in Italian it is called "lattuga romana" and in French "", both meaning “Roman lettuce”. Hence the name “romaine”, the common term in North American English.
Ritual use.
For 3000 years (from at least 2700 BC),