GLP-1 drugs slow stomach emptying, which may reduce how your body absorbs oral estrogen and birth control pills. Dr. Parker suggests this narrowed absorption window could lower hormone levels and contribute to weight loss from these medications.
Dr. Parker's hypothesis, and it's a sound one, that the GLP-1 drug was temporarily interfering with how she absorbed her oral estrogen. Again, it affects a lot of activity in the gut, and it slows down gastric emptying, right? The GLP-1s do. And this slows down how fast food moves from your stomach into the intestines, and that's actually where some of the weight loss is really happening. When you slow down gastric emptying, when you're taking oral forms of birth control or estrogen, you're affecting the absorption window, which is really interesting, right?
