Roos Jonsin is a Canadian naturopath and researcher dedicated to helping people live healthier lives through education about vitamins, herbs, and nutritional supplements. Roos also consults with sup-pliers and manufacturers with product development and marketing. National Nutrition is Canada’s leading health & nutritional supplements store, also voted as the Best Health Food Store in Canada by the experts at Canadian Health Food Association.
Email: roos.jonsin.nd@nationalnutrition.ca
