vitamin
The Double-Edged Sword of Vitamins: Deficiency, Functional Insufficiency, Therapeutic Dosing, and Toxicity
CHAPTER Yoon Hang Kim, MD, MPH Board-Certified in Preventive Medicine Integrative & Functional Medicine University of Arizona Osher Fellow | UCLA Medical Acupuncture | IFM Scholar “The dose makes the poison.” — Paracelsus (1493–1541) Abstract Vitamins are among the most widely consumed supplements in the world, yet the cultural assumption that