Andrea Piunno finds out how taking too much of some vitamins and supplements — like C, iron, fish oils and potassium — can do you harm. 2418994466001citynewsyoutubedangerregion=torontosection=lifeshow=citynewssrc=citynewssupplementsvideoVITAMINVitamin SupplementsVITAMINSvlogYouTube
