I picked up some zinc-based cold-remedy tabs on a recommendation from a friend. I took one and woke up feeling a bit better the next day. I can't be sure the zinc is what did the trick since I'm ingesting a complex cocktail of vitamins, homeopathic remedies and over-the-counter cold medicines. Regardless, I'll stick with the zinc for a while. Then at work today, I did a bit of research and found that there a bunch of lawsuits pending against the manufacturer of this zinc remedy. People are blaming it for destroying their sense of smell. I told a friend at work about the case, and he asked to try one of the tabs. I gave it to him, and an hour later he thanked me and said that it really worked well. He could tell it worked in one hour. I've been taking vitamins on and off for decades, and I've never noticed a difference. Just once, I'd like to say, "Man, my vitamins are really kicking ass today," and then I'd like to punch through a wall. I just take the stuff people say is good for me, and I leave it to them to tell me if I'm feeling better too.