at that age jade was drinking between 60-90mls per bottle 6 or 7 times in 24 hrs. she was on nan pro gold which worked well for her. you can get novalac for hungry babies which is thicker but then you can get probs with constipation. s26 gave her really bad colic/wind....also if you keep switching formulas it can upset thier tummy so stick it out hun and whoever said FF is easy, is crazy...!