Various factors can lead to bloating. Most commonly, bloating is caused by:
- Presence of intestinal gas
- Swallowing air unintentionally
- Constipation
- Overeating or being overweight
- Bacterial overgrowth in the intestine
- Fatty foods
- Irritable bowel
- Lactose intolerance (inability to digest lactose, a sugar found in dairy products).
- Taking certain medications that contain acarbose, lactulose or sorbitol