To learn more about the CNBC CFO Council, visit cnbccouncils.com/cfo America's "protein-maxxing" obsession is stressing the dairy industry. Whey protein concentrate, once considered a cheap byproduct of the cheese manufacturing process, has become one of the most in-demand ingredients in the American diet. The surge is creating nationwide shortages, with some suppliers sold out for the latter half of the year, according to a USDA report from late April. U.S. whey protein end-of-month