Comparisons
Linseed or Psyllium Husk?
Linseed and psyllium husk are both water-binding fibre sources assessed by the EMA for habitual constipation. The table below is built from the sourced cards of both records.
| Aspect | FlaxseedLinum usitatissimum | Psyllium HuskPlantago ovata |
|---|---|---|
| Strongest evidence | A Strong clinical evidence | A Strong clinical evidence |
| Needs | Digestion | Digestion, Heart & Circulation |
| Form | Seed | Dried Herb & Tea |
| How to use | Take 10–15 g of seeds with 150 ml of water, milk or juice, then drink plenty of fluid. It works in 12–24 hours. | Take 7–11 g a day in 1–3 doses with about 30 ml of water per gram. Do not take it just before bed. It works in 12–24 hours. |
| Pregnancy | Avoid | Caution |
| Breastfeeding | Avoid | Caution |
| Recommended minimum age | From age 12 | From age 6 |
| Drug interactions | Interactions reported | Interactions reported |
| Duration limit | See a doctor if constipation lasts beyond 3 days | See a doctor if constipation lasts beyond 3 days |
Which one, when?
Flaxseed
Backed by clinical evidence for habitual constipation and traditional use as a mucilage for mild digestive discomfort. Not recommended under 12.
Full card →Psyllium Husk
Backed by strong clinical evidence for habitual constipation and when soft stool is needed. Can be used for constipation from age 6.
Full card →Good to know
- Both must always be taken with plenty of water; swallowing them dry can block the throat or bowel.
- Take them at least 30–60 minutes apart from medicines, as they can delay medicine absorption.