In addition to what normally occurs in diet, my total daily zinc dosage by tablet is 32mg. I m a 71 yr. old athletic male who is trying to practice good nutrition. I also have CAD, two stints, take 30mg Crestor, 10mg of Lisinopril and 75mg Plavix daily. I work out hard daily with a variety of cardio, martial arts, and strength building exercises trying to be ideally fit. I ve heard rumor that supplementing zinc is now bad for you. Is this true? Your advise please and thankx. Roger, USMC, (Ret.)