I bought some flax seed to sprinkle on my oatmeal. I tried some right out of the bad to see what they tasted like and while I liked the taste, they got stuck in my teeth and weren't very pleasant to chew. Can I toast them, grind them? I'm doing this for the health benefit and no other reason so I'm not sure if toasting them would have any affect on the health benefits. Also, how much should I be using to get my day's worth of flax seed? Teaspoon, tablespoon?