What do you do when you just DON'T want to eat?

I wonder if its the metformin that causes the issue. Sometimes I am the same way and I dont feel like eating anything at all. I take 500mg for breakfast and 500 for lunch. Since I like to bike I have to put something in the body to keep going. I eat a piece a fruit once an hour and yes the instant breakfast from carnation is still around

http://www.nestlenutritionstore.com/general-itemdetail.asp?T1=CIBRTDN+RMCH+12BT

I think this one is 16 grams of carbs