"i have been on belviq now for 4 days and have lost 4 lbs i keep track of what i eat in my fitness pal app i am eating about 1200 calories per day and is fun to keep tract with the fitness pal , my side effects are very tired in the morning and my muscles ache i noticed if i eat a good meal of 300-350 calories it keeps me full,for a longer time rather than eating a smaller meal"