Pigs eating wild onions

I don't know if this is the right forum but if not maybe someone here can point me in the right direction.  I have two Yorkshire feeders nearing processing weight. The have been running in a wooded 2 acre paddock (mostly oak and history) for several months and fed culls from local produce stands and a hog finisher mixed at a local mill.   Today I rotated them back to a paddock where they where when they were smaller for eventual loading/transport/slaughter.  They immediately started eating a crop of wild onions that covered the place in their absence.  I'm wondering if these strong flavored herbs will effect the flavor of the meat.  I know other things like acorns can make the meat bitter for instance, or at least that's what I've heard.

Any advice or insight?

Thanks,

Dallas