Have you ever heard of Resveratrol? Alpha Lipoic Acid? These too have been show to help increase the antioxidants in our body and help the influenza virus from replicating in our bodies.
They are available at good quality health food stores, and I will post later with detailed information about how they work, and how to take them.
Also, Undenatured Whey Protein is safe for your whole family.
Disclaimer: If you are HIGHLY allergic to milk, this is not for you. It is considered a low allergen milk product, but if you are sensitive don't risk it.