Pharmacy Website
    Clinic Website


    Health    Gas
    Also called: Belch, Burp, Eructation, Flatulence, Flatus

    Everyone has gas. Most people pass gas 13 to 21 times a day. Passing gas through the mouth is called belching or burping. Passing gas through the anus is called flatulence. Most of the time gas does not have an odor. The odor comes from bacteria in the large intestine that release small amounts of gases that contain sulfur.

    Gas in the digestive tract comes from two sources: air that you swallow and the breakdown of undigested food by bacteria in the large intestine. Certain foods may cause gas. Foods that produce gas in one person may not cause gas in another.

    You can reduce the amount of gas you have by

    • Drinking lots of water and non-fizzy drinks
    • Eating more slowly so you swallow less air when you eat
    • Avoiding milk products if you have lactose intolerance

    Medicines can help reduce gas or the pain and bloating caused by gas. If your symptoms still bother you, see your health care provider.

    NIH: National Institute of Diabetes and Digestive and Kidney Diseases

    Symptoms of Gas

    The following features are indicative of Gas:
    • digestive disorder
    • occasional burping
    • belching
    References: 1

    Common Causes of Gas

    The following are the most common causes of Gas:
    • autoimmune pancreatitis
    • celiac disease
    • crohn's disease
    • diabetes
    • dumping syndrome
    • eating disorders
    References: 2, 3

    Other Causes of Gas

    The following are the less common causes of Gas:
    • gastroesophageal reflux disease
    • gastroparesis
    • inflammatory bowel disease
    • intestinal obstruction
    • duodenitis
    • lactose intolerance
    • peptic ulcer
    • ulcerative colitis
    References: 2, 3

    Risk Factors of Gas

    The following factors may increase the likelihood of Gas:
    • lactose or gluten intolerant
    • eating a diet rich in fruits, vegetables, whole grains and legumes
    • drinking carbonated beverages
    • having a chronic intestinal condition such as irritable bowel syndrome or inflammatory bowel disease

    Prevention of Gas

    Yes, it may be possible to prevent Gas. Prevention may be possible by doing the following:
    • eat and drink slowly
    • avoid carbonated drinks and beer
    • skip the gum and hard candy
    • don't smoke
    • eat fewer fatty foods
    • temporarily cut back on high-fiber foods
    References: 4

    Occurrence of Gas.

    Degree of Occurrence

    The following are number of Gas cases seen each year worldwide:
    • Very common > 10 Million cases

    Common Age Group

    Gas most commonly occurs in the following age group:
    • Can happen at any age

    Common Gender

    Gas most commonly occurs in the following gender:
    • Not gender specific
    References: 5

    Lab Tests and Procedures for Diagnosis of Gas

    The following lab tests and procedures are used to detect Gas:
    • Physical exam: To detect the presence of excess gas
    References: 6, 7

    Doctor for Diagnosis of Gas:

    Patients should visit the following specialists if they have symptoms of Gas:
    • Gastroenterologist

    Complications of Gas if Untreated

    Yes, Gas causes complications if it is not treated. Below is the list of complications and problems that may arise if Gas is left untreated:
    • constipation
    • fecal impaction
    • bowel obstruction
    • diarrhea
    • radiation enteritis
    References: 8

    Self-care for Gas

    The following self-care actions or lifestyle changes may help in the treatment or management of Gas:
    • Add Beano to beans and vegetables: Lowers the amount of gas they produce
    • Avoid eating fatty foods: Prevents bloating
    • Avoid smoking: Reduces the amount of air you swallow
    References: 9

    Alternative Medicine for Treatment of Gas

    The following alternate medicine and therapies are known to help in the treatment or management of Gas:
    • Use activated charcoal: Helps in relieving gas
    • Take lactase supplements: Effective in treating gas
    • Exercise regularly: Helps in moving gas through the digestive tract
    References: 9

    Time for Treatment of Gas

    While time-period of treatment for each patient may vary, below is the typical time-period for Gas to resolve if treated properly under an expert supervision:
    • In 1 - 4 weeks
    References: 10

    Questions - Gas

    Gas-X is a brand name drug from GlaskoSmithKline. It is used to provide relief of pressure, bloating, and fullness commonly referred to as gas. The active ingredient responsible for how the drug works is simethicone. Simethicone is an anti-foaming agent that is marketed to reduce the buildup of intestinal gases that cause bloating and discomforting i.e. farting. It does this by reducing the surface tension of gas bubbles causing them to break apart and pass more smoothly through your body.
    In theory, the action on surface tension should actually prevent or stop farting, not cause it. However, there are only a few randomized controlled trials with simethicone that show inconsistent results for gas relief. Other methods to manage gas include dietary changes, enzyme preparations to facilitate digestion, adsorbents, treatments to change gut flora, and drugs that modify gut transit.
    1. GlaskoSmithKline Gas-X Usage Accessed February 24, 2018.
    3. Hasler WL. Gas and Bloating. Gastroenterol Hepatol (N Y). 2006;2(9):654-662 URL: Accessed February 24, 2018
    4. Holtmann G, Gschossmann J, Karaus M, et al. Randomised double-blind comparison of simethicone with cisapride in functional dyspepsia. Aliment Pharmacol Ther. 1999;13:1459-1465 URL: Accessed February 24, 2018
    5. Kaplan MA, Prior MJ, Ash RR, et al. Loperamide-simethicone vs loperamide alone, simethicone alone, and placebo in the treatment of acute diarrhea with gas-related abdominal discomfort. A randomized controlled trial. Arch Fam Med. 1999;8:243-248 URL: Accessed February 24, 2018 Accessed February 24, 2018
    Share the link to this answer


    1. Mayo Clinic Intestinal gas http://www.Mayo - Accessed: February 20, 2017.
    2. Mayo Clinic Gas and gas pains - Accessed: February 20, 2017.
    3. Mayo Clinic Intestinal gas - Accessed: February 20, 2017.
    4. Mayo Clinic Gas and gas pains - Accessed: February 20, 2017.
    5. Seo AY, Kim N, Oh DH. Abdominal bloating: pathophysiology and treatment. J Neurogastroenterol Motil. 2013;19(4):433-53. - Accessed: February 20, 2017.
    6. Azpiroz F. Intestinal gas dynamics: mechanisms and clinical relevance. Gut. 2005;54(7):893-5. - Accessed: February 20, 2017.
    7. Mayo Clinic Gas and gas pains - Accessed: February 20, 2017.
    8. NIH Gastrointestinal Complications (PDQ®)–Patient Version - Accessed: February 20, 2017.
    9. Mayo Clinic Gas and gas pains - Accessed: February 20, 2017.
    10. American Academy of Family Physicians Effective Management of Flatulence - Accessed: February 20, 2017.
    11. Source:

    Last updated date

    This page was last updated on 8/07/2018.
    This page provides information for Gas.

    Recent Activity