Olin Idol, ND, Vice President of Health for Hallelujah Diet gives some great information on how to shore up your defenses against cold and flu during the winter season in a live webinar with close to 200 participants on Tuesday night, December 1st. The focus was on various natural remedies as well as some useful additions of Vitamin C, Vitamin D, Selenium, SilverBiotics, and other great cold and flu fighters.