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ingestible · for high cholesterol support

Oats & Beta-Glucan Fiber

Reviewed by the Nimbera editorial team · Last updated May 2026

Hou Q 2015 Nutrients (PMID 26690472) - meta-analysis of 14 controlled trials found oats consumption reduced total cholesterol by 0.49 mmol/L (95% CI -0.86 to -0.12) and LDL cholesterol by 0.29 mmol/L (95% CI -0.48 to -0.09) compared to controls.$5-20/month

How to use

Eat 70-100 g (about 3/4 cup dry) of rolled or steel-cut oats daily, providing approximately 3 g of beta-glucan. Oat bran (40 g/day) is a more concentrated source. Consistency over at least 4-6 weeks is needed to see lipid changes.

How it works

Beta-glucan, a soluble fiber in oats, forms a viscous gel in the gut that binds bile acids and prevents their reabsorption. The liver must then use cholesterol to synthesize new bile acids, lowering circulating LDL levels.

Where to buy

Bob's Red Mill Old Fashioned Rolled Oats ($5-8/bag), Quaker Steel Cut Oats ($5-7/container). For concentrated beta-glucan: NOW Foods Beta-Glucan ($20-30 for 90 caps at 200 mg each). Available at all major grocery stores and online.

Typical cost: $5-20/month

Safety notes

Oats are generally very safe for most adults. People with celiac disease should use certified gluten-free oats as oats are often cross-contaminated with wheat. High fiber intake can cause bloating and gas initially - increase intake gradually and drink plenty of water. Oat supplements should be taken away from medications as fiber can slow drug absorption.

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

Hou Q 2015 - Nutrients (PMID 26690472)

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.