Local specialities include eel, melons and iceberg lettuce. Pale to white lettuce, such as the centers in some iceberg lettuce, contain few nutrients. Iceberg lettuce was introduced by Burpee in 1894. Cold sides often include macaroni or pasta salad, potato salad, or regular iceberg lettuce salad. Kentsalads were the first UK company to produce Iceberg lettuce commercially. The darker the lettuce the healthier, with iceberg lettuce having no nutritional value. An Iguana should never be fed iceberg lettuce or spinach.