GOT FOAM?

Foam in your wheatgrass juice is caused by phytonutrients called saponins. Saponins are natural foaming agents that are added to things like beer and root beer to create a stable, frothy head. Your first instinct may be to spoon the foam from your wheatgrass juice, but think twice. Saponins from most plants have beneficial effects on cholesterol, cancer, bone health, and the immune system.