Several factors can slow digestion, including:

✔ Vagus nerve dysfunction – The nerve that controls stomach emptying may not function properly.
✔ Underlying health conditions – Diabetes, autoimmune diseases, thyroid imbalances, and neurological disorders.
✔ Medications – Opioids, antidepressants, and certain gastroparesis medications can slow stomach motility.
✔ Bacterial overgrowth (SIBO) – Delayed digestion can lead to fermentation and microbial imbalances.