You want a quality Vitamin but you don't need top of the line either. Read labels on different brands and compare. When it's on sale, stock up on a few bottles and use coupons if you can. The multivitamin I bought is Centrum chewables which was one of the recommended brands by my NUT. It's carried at drug and grocery stores and Centrum goes on sale a lot at my store. I use coupons a lot to keep my cost down and you can even go on their website to print coupons. It was on sale at my grocery store last week and I had coupons so the cost was minimal. Also, the calcium with Vitamin D I plan on buying is Viactiv. Not too expensive and it has the mg's recommended. It's all about shopping around!