I take multivitamins. Minerals in foods are best but if you need to take pills, they are best taken with food to help absorption. I subscribe to this idea, and believe the chelated minerals are nonsense. The zinc I would take 20mg or less as it can start messing with copper in your body. Even 5mg is fine.
http://www.drmirkin.com/nutrition/9354.html
The things I hope to affect most are hearing and fibromyalgia, all of which applies to me, and to people over 50. Our hearing may go due to lower minerals of older people.