Psyllium fibre: what it is and how much people take

Psyllium is a soluble fibre from the seed husk of the Plantago ovata plant. Take it with at least a full glass of water, as without enough fluid it can cause choking. Avoid it if you have trouble swallowing.

Checked 28 September 2026 · Source: US Code of Federal Regulations (FDA labelling rule) · Adults only

General information, not medical advice. Check with a doctor or pharmacist before taking a supplement, especially if you are pregnant or breastfeeding, take any medicine, or are under 18.

How much people take

Official upper limitNone set

Cautions and interactions

Quick answers

What is psyllium fibre?
Psyllium is a soluble fibre from the seed husk of the Plantago ovata plant.
Is psyllium fibre safe?
Take it with at least a full glass of water, as without enough fluid it can cause choking. Avoid it if you have trouble swallowing. Take other medicines about 2 hours apart from it.

Sources

Ask Supplement Check yourself

Type a supplement, a dose, or a product name, and get the amounts studies used, any official ceiling and the cautions. Open Supplement Check, free, no sign-up.

In Claude or any app that takes MCP connectors, add https://goodturn-mcp.pages.dev/supplementcheck/mcp and ask: “Is psyllium fibre safe?”

More omega-3 and popular supplements