Hi mommyv3,
Constipation is a problem which has been experienced by many alli dieters during the initial few days of therapy. There are various factors that do contribute and this situation usually resolves itself after a few days.
Any change in diet and exercise does effect your bowel movements. Have you started taking a multivitamin also? Iron and calcium can cause constipation. Also are you eating 18 grams of fat per meal or is it per day? Our bodies do need a minimal amount of fat to function efficiently, our bowels need the fat to lubricate the stool so that it will pass smoothly.
Even though you are eating fiber, you need to get it from multiple sources, soluble and insoluble fiber. Whole grains or a fiber supplement are fine, our bodies should be getting 30 grams per day. The stool softener or laxative will not cause treatment effects and can be used as needed. Keep yourself well hydrated also, it is the fiber and water that forms the bulk and the fat that lubricates.
Hope this helps.
Sophia De Monte RPh