Canada is experiencing a lettuce shortage, with both iceberg and romaine varieties seeing decreased supply, leading to price hikes and some restaurants removing lettuce from their menus. The outbreak of a virus in a major California farming region, already weakened by heat and drought, has severely affected lettuce crops, exacerbating the shortage. As a result, the availability of lettuce and its price have become a challenge for the food service industry, particularly fast-food restaurants and diner-style eateries.