Psyllium husk is a soluble fiber derived from the seeds of Plantago ovata, widely recognized as both a bulk-forming digestive aid and a prebiotic that supports beneficial gut bacteria. Research suggests that psyllium may help promote regular bowel movements, ease symptoms of both constipation and diarrhea, and offer relief for some individuals with irritable bowel syndrome by normalizing stool consistency. Studies also indicate that regular psyllium intake may support healthy cholesterol levels and help moderate blood sugar spikes after meals, making it a topic of interest in cardiovascular and metabolic health research. Available as whole husks, powder, or capsules, psyllium is one of the more extensively studied dietary fibers, though individual responses can vary and adequate water intake is generally considered important when consuming it.
Compare this supplementResearch suggests that the available evidence directly linking psyllium husk to weight management in humans is limite...
View studies →Research suggests that psyllium husk may offer some benefit for constipation relief, though the evidence is more nuan...
View studies →Research suggests that psyllium husk supplementation may help manage chronic large-bowel diarrhea, based on a small o...
View studies →Research suggests that psyllium husk (also known as ispaghula husk) may help reduce symptoms in people with irritable...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Powder | 10–20 g | Daily | Blood sugar regulation | Common in clinical trials studying postprandial glucose and insulin response |
| Powder | 10–15 g | Daily | Cholesterol management | Common in RCTs; FDA-approved health claim threshold is ~7g/day of soluble fiber from psyllium |
| Powder | 10–20 g | Daily | Constipation relief | Well-established in multiple RCTs; often split into 2–3 doses with water |
| Powder | 10–20 g | Daily | Diarrhea management | Used in clinical trials for its water-absorbing and stool-bulking properties |
| Powder | 10–20 g | Daily | IBS relief | Studied in RCTs for both IBS-C and IBS-D subtypes; typical dose split across meals |
| Powder | 6–12 g | Daily | Weight management | Used in clinical trials to promote satiety and reduce caloric intake when taken before meals |