Question: what are the harmful ingredients in coca cola?
Answer: Alcohol. According to research carried out by the French National Institute for Consumer Affairs, more than half of well-known colas contain tiny traces of booze. ... 
Citric Acid. ... 
Phosphoric Acid. ... 
Mercury. ... 
Sodium Benzoate. ... 
Benzene. ... 
4-methylimidazole (4-MEI) ... 
Aspartame.