…to get Zinc, magnesium and B6 from food and perhaps a multi nutrient also, instead of buying ZMA?
http://www.snac.com/minerals.html
There are some problems absorbtion-wise in most multis I think. Also, apparently the SNAC/Biotest formula is exactly what you need in perfect proportions.
pete is right, its the sources (forms) and more importantly the exact ratio of the components.