Protein, protein, protein! Increased health awareness and a general upward trend in fitness across America is catapulting the nutritional supplement business, protein shakes included, to an estimated $8.8 billion industry by the year 2020. Protein shakes, born in the 1950s, were once strictly for bodybuilders, but they’re now available at the local gas station. What should you consider if you’re thinking about joining this trend or if you’ve been trendy for a while?
