To the uninitiated, this edible algae product may seem like nothing more than pond scum—another example of newfangled, hippie-dippy, pseudo-nutrition. But your old colleague (rest his soul, by the way) would be wrong. In fact, Spirulina & Chlorella are bonafide superfoods with the potential to not only restore your body but the planet at large, making it a more than worthwhile addition to your list of healthy habits.