Several different types of probiotics
have been found to reduce symptoms of IBS, but the appropriate probiotic may depend on whether the IBS is causing predominantly diarrhea or constipation. (See the "What It Does" section of the Probiotic Supplements Review
have also been promoted for IBS, although the evidence is mixed.
Supplementation with the amino acid glutamine
has been shown to reduce symptoms such as pain and bowel frequency in people with diarrhea-predominant IBS.
Interestingly, several small studies suggest melatonin
may improve symptoms of IBS, possibly by affecting the nervous system in the digestive track. (See the "What It Does" section of the Melatonin Review
Preliminary evidence suggests psyllium
, a type of fiber, may be helpful for people with IBS with constipation.
Information about other potentially helpful supplements, including peppermint oil
, is found in the Encyclopedia article about IBS
Be aware that a number of supplements, including fish oil
, high doses of vitamin C
can cause diarrhea, so you may want to avoid these or reduce your dosage if you find they are exacerbating IBS symptoms. See the "Concerns and Cautions" section in each review for details.
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