I take plain ol' Centrum, which I get in bottles of 325 tablets at Costco. I gotta take multivits at night, or they upset my stomach.
I had my blood levels checked when I was dealing with some celiac issues, and they came out good. So, doc said to keep doing what I was doing.
Maybe if you are concerned about whether you are getting the right nutrients, it would be worth getting your levels checked before you go buying some other kind of vitamins? Then you can compare what you're taking now with what (if any) you don't have enough of in your blood, and get a REALLY customized vitamin "prescription."
(insurance covered my test)
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson