I figure that people buy it because they believe that it's healthier than regular but many prefer the taste. Please Explain
Edit: I stand corrected it's the second most popular drink so I changed the question (http://www.coca-cola.co.uk/faq/which-is-your-bestselling-brand-coca-cola-or-diet-coke)
Edit: I stand corrected it's the second most popular drink so I changed the question (http://www.coca-cola.co.uk/faq/which-is-your-bestselling-brand-coca-cola-or-diet-coke)