I'm leaving Sat to work at an 8 day conference in Washington DC. I can usually find a health food store somewhere near where I work. I have NEVER had any of the shakes. Because of the nature of work and that I can't leave, I'll probably buy some shakes to take with me for breakfast.

So, my question. Which shakes are the best as far as low/carb or no-hidden-carbs? Taste...yeah, it matters, but my main concern is staying on plan and meeting my weight loss goals.