Good questions! I actually had to google for the answers. Yes to your first question, you still get the same benefits as if you were eating it unground. As for your second question, there weren't any concrete answers so that is up to you. If there were buttermilk in it, I would say yes it'd still be good because it is a natural preservative.
Success is not final, failure is not fatal: it is the courage to continue that counts.
- Winston Churchill