---
title: "Linseed or Psyllium Husk? | Herbadex"
description: "Two bulk-forming fibre sources for constipation: water requirements, age limits and medicine spacing for linseed and psyllium husk side by side."
language: en
url: https://herbadex.com/en/compare/linseed-vs-psyllium-husk/
source: Herbadex (https://herbadex.com)
---

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 | Flaxseed Linum usitatissimum | Psyllium Husk Plantago 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 →](https://herbadex.com/en/herb/flaxseed/)

### 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 →](https://herbadex.com/en/herb/psyllium-husk/)

## 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.

## Sources

1.  [Community herbal monograph on Linum usitatissimum L., semen – Revision 1](https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-linum-usitatissimum-l-semen_en.pdf) EMA HMPC · 2015
2.  [Community herbal monograph on Plantago ovata Forssk., seminis tegumentum – Revision 1](https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-plantago-ovata-forssk-seminis-tegumentum_en.pdf) EMA HMPC · 2013

This page is for information only and is not medical advice. If you take medication, are pregnant, or have a health condition, talk to your doctor or pharmacist before use.