Finally, winter has here, and this is the time of year when our immune systems are most susceptible. While there are many benefits to winter, it also comes with the possibility of getting a cold, the flu, or a fever. A healthy, balanced diet is essential to preventing winter illness. Doing this can ensure your immune system is robust enough to shield you from disease. In order to assist you boost your immune system, we have put up a list of several superfoods.