As one of the largest fast food chains globally, McDonald's has faced criticism for its high-calorie, processed food offerings, environmental impact, and labor practices.
While Burger King has a loyal fan base, it has also faced criticism for its unhealthy menu options, such as high-fat burgers, as well as accusations of poor treatment of workers.
Taco Bell has received criticism for its heavily processed food, low-quality ingredients, and accusations of cultural appropriation in its marketing campaigns.
KFC has faced backlash for its fried chicken products' high calorie, fat, and sodium content, as well as concerns regarding animal welfare and the treatment of chickens in its supply chain.
Subway experienced a decline in popularity due to controversies surrounding the quality and ingredients of its sandwiches, including concerns about its bread containing a chemical found in yoga mats.
Domino's has faced criticism for its pizza's quality and taste, as well as allegations of underpaying workers and poor working conditions.
Arby's has received negative feedback for its high-calorie, processed meat-focused menu options and perceived lack of healthy choices.
Jack in the Box has faced criticism for its unhealthy menu items, including high-calorie burgers and deep-fried sides, as well as food safety issues in the past.
These sister chains have faced scrutiny for their provocative and controversial advertising campaigns, as well as criticism for their high-calorie, indulgent menu items.