Guard yourself this flu season with this refreshing and immune boosting smoothie. Cranberries are packed with the antioxidant, proanthocyanidins, as well as vitamin C and fiber, so while these bright red berries are supporting your immune system they also help feed your good gut bacteria. Bok choy bumps the nutritional value as well because of its high concentration of vitamins and minerals. Just in time for February 14th, the lovely pink hue will delight your Valentine. Breakfast in bed anyone?