If prolactin is slightly raised from 2.5 zyprexa (olanzapine) ( suspected) , is there any way, preferably natural, lower? will exercise and diet possibly lower it?

Hyperprolactinemia: Mild elevation in prolactin is a common side effect of antipsychotic medications. The "atypical antipsychotics", of which Zyprexa (olanzapine) is one, tend to do it much less than the older medications. If the elevation is mild and you have no symptoms related to it (change in sexual function), no treatment or medication change is needed. I know of no "natural" ways to lower the level.