Constipation usually is caused by the slow movement of stool through the colon. There are many causes of constipation including medications, poor bowel habits, low fiber diets, laxative abuse, and hormonal disorders, and diseases primarily of other parts of the body that also affect the colon. As a Keto XR Diet weight loss tool, there is not adequate evidence to suggest that this diet is superior to other weight-control plans and may be associated with long-term risks or nutritional deficiencies.