Healthy Immune System posted on March 19, 2013 ask joe dimatteohealthy immune systemimmune health Share this Post Share on Twitter Share on Facebook Share on Google Plus In this clip, Joe DiMatteo discusses ways to effectively manage your immune system using Probiotic Essentials, Vitamin D, and Buffered C. Joe DiMatteo is a registered pharmacist, certified clinical nutritionist, homeopath and doctor of naturopathy.