Close up of bowls of lentils and chickpeas - Carlos Ivan Gil Iglesias/Getty Images From special bars to drinks and popcorn to cookies, it seems like anything can be a source of protein these days.

Some experts call them a superfood. Here’s why they deserve a spot in your pantry. Some experts call them a superfood. Here’s why they deserve a spot in your pantry. Credit...Suzanne Saroff Supported ...