My guinea pig is only about a year and half old and recently had tooth filing due to weight loss, eye infection & an infected pocket in his mouth. He was put on the critical care diet for two weeks to allow his mouth pocket to heal. After the first week as we were learning and he was learning, he lost even more weight. Even though he is now allowed to have solid food and hay, he is not eating much and begging for the critical care/baby food mixture I had been feeding him. He no longer really wants vegetables and is not eating hay - he will eat pellets and fruits. I suspect he is addicted to the critical care and wanted to know opinions on this. I am taking him back to the vet for his follow up but am concerned for his long term health and quality of life. What are suggestions for weaning a piggie off of the critical care when they are obviously hungry but not wanting to eat what is provided?. He was 780 grams two weeks ago and is now 650 grams.