uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.


Psyllium Supplements Reviewed by
Watch the video


  • What is psyllium?

    Psyllium supplements are made from psyllium seed husk, the mucilaginous coat that surrounds the psyllium seed. The husk is about 90% fiber, most of which (about 80% of the fiber) is soluble fiber. This soluble fiber can attract and bind water (absorbing about 10 times its weight in water), forming a non-fermentable, viscous gel. The remaining 20% of the fiber in psyllium husk is insoluble fiber that can also add bulk to stool. (See What It Is.)
  • What are the health benefits of psyllium?

    In the gut, the gel created by psyllium's soluble fiber 1) occupies volume and slows digestion, leading to fullness and helping to regulate blood sugar levels, and 2) softens and adds bulk to stool, providing a laxative effect. The gel may also bind to and reduce the absorption of a variety of compounds, which may explain its cholesterol-lowering effect. It is unknown if taking psyllium is helpful in achieving long-term weight loss. (See What It Does.)
  • What problems did ConsumerLab's tests show with psyllium products?'s tests of the quality of psyllium products revealed that 5 out of 8 were contaminated with excessive amounts of lead — as much as 11 micrograms per 5 grams of psyllium husk (22 times the daily amount permitted in California without a warning label). Lead was found in all products, but those with the least contained only 0.4 to 0.6 mcg per 5 gram serving. One product had an unusually high amount of filth in the form of insect parts. However, all of the products contained their claimed amounts of soluble and insoluble fiber. (See  What CL Found.)
  • What is the best psyllium?

    ConsumerLab's overall Top Pick among Approved psyllium products (including those sold as supplements, foods, and OTC drugs) was selected for having the least contamination from lead, the right amount of pure psyllium husk, the correct amounts of soluble and insoluble fiber, and proper usage instructions. It was also relatively inexpensive.

    [Update (8/10/22): We have added information comparing ColonBroom, which is being widely promoted, to the products in this review.]

  • What is the right dose of psyllium and how should psyllium be taken?

    When starting with psyllium, start slow — with as little as ½ tablespoon of psyllium husk or ½ teaspoon of husk powder (which is denser, so a smaller serving is used). Dose can be increased to a full tablespoon or teaspoon per serving, taken one to three times daily, depending on the use.  

    Take psyllium with lots of water — at least 8 to 12 ounces with each serving, and more afterward. If mixing psyllium husk or powder in liquid, drink the liquid right after mixing -- before the liquid starts to gel. Timing around meals depends on whether you are using for laxation (stool softening), appetite control, or cholesterol-lowering. (See How to Use.)
  • How safe is psyllium and what are its side effects?

    Due to its fiber, psyllium can cause bloating, and some gas -- particularly when you start. Too much can cause diarrhea. Taking with too little water can cause constipation. Don't take capsules if you have difficulty swallowing. Medications should be taken at least one hour before or four hours after taking psyllium to help avoid interactions which can delay or reduce drug absorption. (See Concerns and Cautions.)

Make sure you're choosing the best psyllium fiber supplements approved in our tests!

See the Full Review as a Member

Join now at

Psyllium products compared in this review

View Larger Image 7430_large_KateNaturals-Psyllium-2021.png

Kate Naturals Organic Psyllium Husk Powder

View Larger Image 7431_large_MetaMucil-Psyllium-2021.png

Metamucil 4-in-1 Fiber – Orange

View Larger Image 7435_large_NOW-Psyllium-2021.png

NOW Psyllium Husk Caps 500 mg

View Larger Image 7432_large_OrganicIndia-Psyllium-2021.png

Organic India Psyllium Organic Whole Husk Fiber

View Larger Image 7433_large_RiteAid-Fiber-Psyllium-2021.png

Rite Aid Fiber Therapy

View Larger Image 7438_large_Sunergetic-Psyllium-2021.png

Sunergetic Psyllium Husk

View Larger Image 7439_large_UpAndUp-Psyllium-2021.png

Up & Up [Target] Fiber Supplement

View Larger Image 7434_large_YerbaPrima-Psyllium-2021.png

Yerba Prima Psyllium Whole Husks

In this comprehensive review of psyllium husk and husk powder products, you'll learn:

  • How much fiber and lead we found in psyllium supplements and which psyllium supplements passed or failed's testing and review
  • What psyllium husk can do for your health  
  • How to take psyllium so that it is most effective and least likely to cause side effects   
  • The dosages of psyllium as a laxative/stool softener, cholesterol-lowerer, and appetite suppressant   
  • Potential side-effects and drug interactions of psyllium 

Join to unlock the full report and get full access to over 1,400 reviews

See the Full Review as a Member

Join now at

Additional Information
Tested through CL's Quality Certification Program prior to, or after initial posting of this Product Review.