A Brief History of Extreme Diets
Tapeworms, cotton balls, and cigarettes—not exactly the breakfast of champions, but at one point these (and a dozen other items) were featured ingredients in the craziest diet menus of all time.
See also the never-eat-again diet.
2012 Honestly Healthy Alkaline Programme:
Advocates eat mostly alkaline (instead of acidic) foods to keep their pH between 7.35 and 7.45.
2013 The Cotton Ball Diet:
Reportedly popular among models, who dip the medicine-cabinet staple in juice then eat it instead of real food.
2013 The Aztec Diet:
The three-part plan teaches you how to eat a diet primarily made up of chia seeds, quinoa, corn, and fish—though we're pretty sure the ancient Aztecs didn't exist on chia-seed smoothies for days on end.