From Denny: The number one thing to do besides take the flu shot if you have an edgy immune system is to guard your diet. Keep it full of lean protein as that is what helps support the immune system. Another group of foods to keep in mind are those that help the liver process toxins like green leafy vegetables. Also, during the flu season add foods like apples which are good to your sinuses, lungs and digestive track. Apples help dry up excessive mucus from the winter wind sniffles, the normal cold or the flu.
How to boost your immune system: