Is this supplament the same as ZMA?

I've read that ZMA, a common supplament that bodybuilders and athletes take, is mostly composed of magnesium, zing and vitamin B6..

I take this: http://www.amazon.com/Multi-Advanced-He ... 544&sr=1-1

which has these ingredients:

http://www.luckyvitamin.com/skins/Skin_ ... /54516.jpg

Does it have a similar effect on my health as ZMA?

Ok I'm no expert here, but I see on the label that it's magnesium is magnesium oxide, which is not absorbed well by the body, so you'd wanna go for something else...

Not even close. Zma is a specific ratio of highly absorb-able zinc and magnesium chelates, along with B6. You will not be able to put together your own for cheaper than http://www.nutrabio.com/Products/zma.htm can. It's a good site, read up on ZMA there. The 500g bottle is a 300 day supply.