Hi,
my experience is that they can. I used to work for GNC. They have a hefty commission plan to get sales guys to push the more expensive stuff.
Take B1, for example. Yours has 50 mg. That is just overkill.
To be honest, I don't know of a multi I can endorse. Most guys don't need iron. Most American guys get more than they need from their diet. And in any case, iron can bind with Vit E neutralising it.
Try to find a naturally derived brand that has more reasonable amounts.