Mmmm, Crickets: How Exo Protein Bars Found Its WingsTwo entrepreneurs are singing the praises of cricket-based protein bars.

Entrepreneurs:Twentysomethings Gabi Lewis and Greg Sewitz met while attending Brown University, where they were roommates. After graduation, Lewis turned down a job with a hedge fund and Sewitz deferred grad school so they could launch New York-based Exo, a company that manufactures cricket-based protein bars.

"Aha" moment:Sewitz, who studied cognitive neuroscience and English at Brown, attended a conference at the Massachusetts Institute of Technology, where he learned about insects as a sustainable food source. (The Food and Agriculture Organization of the United Nations, among others, have pointed to insects as an inexpensive source of protein, calcium and iron that emits fewer greenhouse gases during production than livestock.) Sewitz suggested that Lewis, who was making homemade protein bars as an alternative to sugary mass-market versions, consider adding crickets to his DIY recipe.