Research suggests that flaxseed oil may offer some utility as a gentle approach to constipation relief, with a 2017 review of herbal remedies noting that flax oil was considered safe for use from the second trimester of pregnancy onward, though this finding was specific to a pregnant population and may not broadly generalize. The available evidence base is quite limited, consisting of a narrative safety review and a decades-old 1963 publication whose full content could not be assessed, meaning the overall body of research is both sparse and methodologically modest. No randomized controlled trials or meta-analyses specifically examining flaxseed for constipation were included among the linked studies, which represents a meaningful gap in the evidence. Readers should be aware that the current findings are insufficient to draw firm conclusions about flaxseed's effectiveness for constipation in the general population, and that individual responses to dietary interventions can vary considerably.
Citations from PubMed and preprint sources. Match score (0-100) reflects automated search ranking, not clinical appraisal.
| Title | Type | Year | Direction | Match |
|---|---|---|---|---|
| Herbal laxatives and antiemetics in pregnancy. | Review | 2017 | Supports | 78 |
| THE REASONABLE TREATMENT OF CONSTIPATION WITHOUT LAXATIVES. | Other | 1963 | Supports | 60 |