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

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Flaxseed has some scientific evidence supporting its use in managing symptoms of Irritable Bowel Syndrome (IBS), though this evidence is limited and not robust. Flaxseed is rich in both soluble and insoluble fiber, which plays a role in regulating bowel movements. Soluble fiber can help soften stool and ease constipation, while insoluble fiber adds bulk and helps with regularity. Several small clinical trials and observational studies have examined the effects of flaxseed supplementation in people with IBS, particularly those with constipation-predominant IBS (IBS-C). For example, a randomized controlled trial found that ground flaxseed improved stool consistency and frequency in IBS-C patients compared to baseline. However, not all studies have shown clear benefits, and some have reported increased bloating or flatulence as a side effect.

Systematic reviews generally conclude that while flaxseed may provide symptomatic relief for some IBS patients, especially those with constipation, the overall quality of evidence is low due to small sample sizes, short follow-up periods, and variability in study design. There is insufficient high-quality evidence to recommend flaxseed as a primary therapy for IBS, but it may be considered as part of a broader dietary management approach, especially for those seeking increased fiber intake. Individuals with IBS should introduce flaxseed gradually and monitor for adverse effects.

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