Brief Answer:
Avoid foods and additives that increase gas production

Detailed Answer:
Hi there,

There are several reasons why people produce gas such as excessive air swallowing, increased gas production from malabsorbed nutrients, decreased gas absorption due to obstruction, or expansion of intraluminal gas due to changes in atmospheric pressure.

Although excessive passage of gas or its foul odor may be a source of embarrassment to the patient, it is rarely associated with serious illness.

A number of factors may account for a patient's awareness of bothersome flatus:
-An alteration of intestinal motility or bacteria.
-Dietary factors, such as an increased intake of lactose, fructose, sorbitol; undigestible starches in fruits, vegetables, and legumes; and carbonated beverages. Products such as pork may release trace concentrations of malodorous gases upon digestion.

Several measures can be undertaken to reduce annoying flatus and gas production.:
-Limiting dietary ingestion of known gas-producing foods such as cabbage, onions, broccoli, brussel sprouts, wheat, and potatoes
-a temporary trial of lactose and fructose avoidance
-avoidance of sorbitol (which may be contained in diet foods and chewing gum)
-avoidance of ingestion of foods known to promote gaseousness (such as legumes and cruciferous vegetables as stated above)
-a diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols (also known as FODMAP)
-a trial of Simethicone, which causes gas bubbles to break and coalesce, is widely used for treating gaseous complaints.
-Bismuth subsalicylate reduces the odor arising from hydrogen sulfide as well as other pungent components of flatus

Ultimately, I would recommend changing your diet by avoiding foods and additives that cause increase gas production (some of the most common are state above).

I hope this helps!

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