I do eat it plain, just the wholem ilk type though. It's really good. The only reason I often use shake mix, besides the taste, is to add extra protien. Because yogurt is higher carb it needs a little protien to balance it according to BFL and Atkins

I do like it plain on days I already have more then enough calories or protien, or I just don't feel like mixing it up Berries are also a good addition though. I first tried yogurt it was an organic fat free. I can belive it went down to close to 4 carbs just because of how sour and nasty that stuff was. You definetly had to mix it. The Mountian high Fat Free though is tolerable.