When it comes to protein, packaged food and beverage brands have gotten increasingly creative about ways to pack more of the nutrient into their products. Now, a shift is underway."Fiber will be the next protein," PepsiCo CEO Ramon Laguarta said during an earnings call Thursday. "Consumers are starting to understand that fiber is a benefit that they need," he added. "It's actually a deficiency in US consumers' diet."Laguarta said the company is rolling out more offerings that contain fiber, including a re ...