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ingestible · for high cholesterol support

Psyllium Fiber

Reviewed by the Nimbera editorial team · Last updated May 2026

Meta-analysis of 28 RCTs (n=1,924) in Am J Clin Nutr 2018 found ~10 g/day psyllium reduced LDL by 0.33 mmol/L. FDA granted a qualified health claim for psyllium husk and heart disease in 1998.$10-$20 for a 1-2 month supply.

How to use

Mix 5-10 g of psyllium husk powder in a large glass of water once or twice daily before meals. Start with 5 g and increase gradually to reduce bloating. Take with at least 240 mL of water to prevent choking.

How it works

Psyllium is a viscous soluble fiber that forms a gel in the intestine, binding bile acids and cholesterol and preventing their reabsorption. This forces the liver to draw LDL from the blood to make new bile acids.

Where to buy

Pharmacy, grocery store, or online. Look for Metamucil (Procter & Gamble) or generic psyllium husk powder. Capsule forms are also available.

Typical cost: $10-$20 for a 1-2 month supply.

Safety notes

Take with plenty of water - dry powder can cause choking or esophageal obstruction. May reduce absorption of some medications; take psyllium at least 2 hours away from any oral medication. Can cause bloating and gas, especially in the first week.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Jovanovski et al. Am J Clin Nutr 2018 - PMID 30239559

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.