I've tried using a blender when mixing my whey with whole grain whole oats but nothing really happens to the oats. They are still big and nasty and I choke on them. I think I could stomach it alot better if it was in powder form, like whey protein. Anybody grind their oats up and have success? Or better yet, anybody know where I can buy preground up oat powder. I'm having no luck on google.