Protein cookies seem to have sprung fully formed overnight into the aisles of local grocers. Wegmans, our local Rochester, NY supermarket, is all about protein cookies. In fact, they carry a good variety, many inhabiting the high-visibility end-cap display to catch shoppers' attention. But grocers are not the only place that you can find protein cookies. They are ubiquitous and available at movies, the gym, airports, and convenience stores. Protein cookies practically sell themselves because they have eye-catching packaging, often make multiple health claims, and appeal to the current protein craze.