Answer: The Lucky Iron Fish. I recall hearing that iron deficiency was a serious problem in developing countries due to improper diets that consisted of mostly pastas and rice, which are a poor source of iron.

The solution was to boil chunks of iron with food to increase the iron content but many were skeptical and hesitant to cook with chunks of metal in their food. The iron was shaped into a 'lucky fish' that would provided addition health benefits when you boiled water with the fish in it.