Psyllium: study protocols
12 study groups say how much Psyllium participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
117 products in our catalogue print how much Psyllium a serving holds.
Most common: 500 mg to 1 g and 2.5 g to 5 g, 24% of 117 products each.
| Dose per serving | Products |
|---|---|
| 50 mg or less | 4 |
| 50 mg to 100 mg | 3 |
| 100 mg to 250 mg | 10 |
| 250 mg to 500 mg | 4 |
| 500 mg to 1 g | 28 |
| 1 g to 2.5 g | 23 |
| 2.5 g to 5 g | 28 |
| 5 g to 10 g | 16 |
| over 10 g | 1 |
Dose per serving from research
12 study groups in 11 studies say how much Psyllium participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 10 g to 25 g, 58% of 12 study groups.
| Daily dose | Study groups |
|---|---|
| 5 g to 10 g | 5 |
| 10 g to 25 g | 7 |
Commonly used together
1 of 12 study groups took Psyllium with something else, but nothing that 3 or more different studies gave.
12 study groups
| Study | |||
|---|---|---|---|
| Soluble or insoluble fibre in irritable bowel syndrome in primary care? Randomised placebo controlled trial 2009 · Psyllium · Adults aged 18-65 with irritable bowel syndrome | 10 g | 12 weeks | 85 |
| Dietary fiber supplementation for fecal incontinence: a randomized clinical trial 2014 · Psyllium group · Community-living adults aged 18 or older with fecal incontinence of loose or liquid feces | 14.6 g | 38 days | 54 |
| The effect of 'Zesy002' kiwifruit (Actinidia chinensis var. chinensis) on gut health function: a randomised cross-over clinical trial 2019 · Metamucil · Women aged 21–65 with mild functional constipation or IBS with constipation | 14.5 g | 4 weeks | 32 |
| Pharmacodynamics, Safety, and Tolerability of the NHE3 Inhibitor Tenapanor: Two Trials in Healthy Volunteers 2018 · 30 mg b.i.d. + psyllium · Healthy adult volunteers aged 19–65 years | 15 g | 7 days | 12 |
| Effects of psyllium vs. placebo on constipation, weight, glycemia, and lipids: A randomized trial in patients with type 2 diabetes and chronic constipation 2018 · psyllium group · Patients with type 2 diabetes and chronic constipation; adults, sex not specified | 20 g | 12 weeks | — |
| Ispaghula husk in the treatment of hypercholesterolaemia: a double-blind controlled study 1998 · 7.0 g/day ispaghula group · Adults aged 18–65 with mild-to-moderate primary hypercholesterolaemia | 7 g | 12 weeks | — |
| The Impact of Glucomannan, Inulin, and Psyllium Supplementation (Soloways(TM)) on Weight Loss in Adults with FTO, LEP, LEPR, and MC4R Polymorphisms: A Randomized, Double-Blind, Placebo-Controlled Trial 2024 · glucomannan, inulin, and psyllium · Adults aged 40–60 with BMI of at least 25 and at least one minor allele in a specified FTO, LEP, LEPR, or MC4R polymorphism | 9 g | 180 days | 75 |
| Viscosity rather than quantity of dietary fibre predicts cholesterol-lowering effect in healthy individuals 2011 · medium-viscosity psyllium (PSY) · Apparently healthy adults aged 35 years on average, consuming a typical North American diet; 12 males and 11 females | 9 g | 3 weeks | 23 |
| Effects of psyllium hydrophilic mucilloid on LDL-cholesterol and bile acid synthesis in hypercholesterolemic men 1992 · psyllium (Ps) · Men aged 44 ± 4 years with moderate hypercholesterolemia | 15 g | 40 days | 20 |
| Ispaghula husk in the treatment of hypercholesterolaemia: a double-blind controlled study 1998 · 10.5 g/day ispaghula group · Adults aged 18–65 with mild-to-moderate primary hypercholesterolaemia | 10.5 g | 12 weeks | — |