For those that suffer from irritable bowel syndrome, probiotics might help control constipation. Look for a probiotic supplement with 3 billion or more organisms. Probiotics also can contribute to immune health, as well as reduce fermentation of some carbohydrates that lead to gas.

Gas might indicate an inability to digest food properly. A broad-spectrum, vegetarian digestive enzyme would be important to take with each meal or snack. It's also important to consume sufficient quantities of water.

Dan Kaur Weamer