Dr. Zoltan Rona is a graduate of McGill University Medical School and is a past president of The Canadian Holistic Medical Association. He is the author of bestsellers, The Joy of Health and Return to the Joy of Health and is medical editor of the award winning Encyclopedia of Natural Healing. He has had a private medical practice in Toronto for the past 38 years and writes regular articles for Alive and Vitality magazines. Dr. Rona was named Chief Medical Advisor for NAKA Herbs and Vitamins. www.tristarnaturals.com.  Dr. Rona will be at Booth 424 on Saturday between 2-3pm.