Clever Guts is not intended as a weight loss plan, although this may occur.
Have you been completing a detailed food and symptom diary (p.187)? Does your current diet include a balance of all the different food groups? Are you having a variety of both probiotic rich foods and prebiotic rich ones?
Depending on the quality of your previous diet, you may need to increase the quantity and the variety of fruits, vegetables and other whole plant foods slowly. Be aware that fruit and vegetables are largely water by weight, so do not bulk the stool much. Ensure you are also eating plenty of nuts, seeds, beans, lentils and/ or wholegrains for bulk.