When you picture a frog in the water, images of its tiny head peeking through pond weed likely come to mind. Well, believe it or not, that green stuff floating on the water’s surface is the newest vegan protein to hit the health food scene—and experts are claiming it’s superior to other plant-based proteins. Thankfully, you don’t have to stomach it right out of the water to reap its benefits. Parabel, a food technology company,…