Ingredient guide
Psyllium husk: evidence, dose and safety
Psyllium husk is the soluble fibre from the seed coat of Plantago ovata. It forms a gel with water, so it must be taken with plenty of fluid.
At a glance
- Strongest evidence
- A Strong
- Dose in our plans
- 5 g a day for adults
- Safety checks
- 0 situations and 1 medicine or supplement interaction, checked against your answers in every plan
- Reviewed
- Atrum Labs clinical team (MD, PhD), November 2026
What the research looked at
Each line is one body of research, graded A (strong) to D (weak). How we grade evidence. What each study measured is explained in your personal plan.
| Grade | Who was studied | References |
|---|---|---|
| A | Adults with elevated LDL |
|
| B | Adults with elevated glucose |
|
| C | Adults with overweight |
|
How much
- Our plans usually use 5 g a day for adults. The exact dose depends on your lab results, age and medicines.
- Children's doses are set by age, and some ingredients are for adults only.
Medicines and other supplements
- Take with care. Psyllium can reduce absorption of medicines; take medicines 2 hours before or after.
Your plan is checked against every medicine you tell us about. If you take a medicine, ask your pharmacist or doctor before starting a new supplement.
Written and reviewed by the Atrum Labs clinical team (physician-scientists, MD, PhD) from our clinical knowledge base, version 0.2.0-draft. This page is general information, not medical advice. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle.
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