Ask a Dietitian

I had RNY on 4/22/08.  I am getting around 500 cal a day, with 60 oz H2O, 60-70gm protein.  Question:  I get really hungry around 10:30am after a breakfast of a protein drink (160-210 cal).  What would be a good thing to tide me over until lunch, also an afternoon snack would be nice.  I would not like to go over 500-600 cal.  thanks.