Evidence supporting the use of: Cinnamon
For the health condition: Irritable Bowel Syndrome

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Cinnamon (Cinnamomum verum or Cinnamomum cassia) has a long history of use in traditional medicine systems such as Ayurveda and Traditional Chinese Medicine (TCM), where it is believed to have digestive benefits. In these traditions, cinnamon is often used to alleviate symptoms related to gastrointestinal discomfort, such as bloating, flatulence, and mild cramping, which overlap with some symptoms of Irritable Bowel Syndrome (IBS). The rationale is that cinnamon is considered a "warming" spice that can help balance digestion and soothe the stomach.

However, the scientific evidence supporting the use of cinnamon specifically for IBS is weak. While laboratory studies and limited animal research suggest that cinnamon may have anti-inflammatory, antimicrobial, and spasmolytic (muscle-relaxing) properties, there are few well-designed clinical trials evaluating its effectiveness for IBS. Most available studies focus on general digestive health or related symptoms, not IBS specifically. As a result, the use of cinnamon for IBS is primarily justified by traditional use rather than robust scientific validation.

Clinical guidelines for IBS do not currently recommend cinnamon as a primary or adjunctive therapy. People with IBS should consult with a healthcare provider before using cinnamon supplements, especially in large amounts, as cassia cinnamon contains coumarin, which can be harmful to the liver in high doses.

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ginger
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green tea
guar gum
cellulose
inulin
isomalto-oligosaccharide
l-glutamine
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