Coca-Cola (KO 0.98%) had a strong first quarter, easily besting peer PepsiCo's (PEP -0.33%) lackluster performance. Coca-Cola, the world's leading beverage company, is projecting strong results through the rest of the year. That's good news for the business, but it may not be good news for investors looking to buy the company today.What does Coca-Cola do?Coca-Cola is best known for its namesake soda brand. However, its collection of beverages goes well beyond bubbly drinks. It owns Costa, a coffee chain, se ...