FeelGood Immune Support Shot Is the first all-natural vitamin enhanced daily fruit & veggie shot designed specifically to improve and support the human immune system. FeelGood Immune Support Shot was formulated by physician and surgeon Marc S. Stevens, MD, FACS, FICS. Dr. Stevens has over 20 years of experience treating surgical patients, infectious disease, and musculoskeletal disorders. He has always had a passion for improving the care and outcomes of his patients by utilizing nutrition to enhance and maximize the body’s reparative and defense mechanisms. FeelGood Immune Support Shot is different than other supplements because each ingredient was specifically chosen using evidence based medicine, and/or is supported by clinical data.