Herbalife's product range include protein shakes and snacks, vitamins & dietary suppliments, energy and fitness drinks, etc that helps to lead a healthy & active lifestyle. Their products have been in the market since 1980, and were approved and on sale in 74 countries, including USA (where it came from) & Europe where I believe must have those most stringent safety measures on food control.
For a company first went puplic on NASDAQ in 1984, then on NYSE (US$79+) since 2004, I guess the food it sells is pretty safe too?
Guess it's good enough if these mega sports stars think it's safe?