Fewer than three months later, Coca-Cola brought back its initial recipe, relegating now-discontinued New Coke to "Coke II" in hopes the product might still be salvageable. Spoiler alert: it wasn't.

Coca-Cola's approach to sugar is multifold: one, reduce package size; two, expand into non-sugar and low-sugar drinks, including bottled water and juice; and, three, lower the amounts of added ...