RCT Summaries are written by Dr. Cathy Stein specifically for Trisha’s Elderberries. All rights reserved.
Dr. Cathy Stein has a PhD in epidemiology and her research focuses on infectious disease susceptibility.  She currently holds a tenured faculty position.
Note: all randomized controlled trials were double-blinded with placebo


  1. Black elderberry (Sambucus nigra) supplementation effectively treats upper respiratory symptoms: A meta-analysis of randomized, controlled clinical trials. Complementary Therapies in Medicine (2019
  2. Pilot clinical study on a proprietary elderberry extract: Efficacy in ad-dressing influenza symptoms. Online J Pharmacol Pharmacokinetics, (2009)
  3. Inhibition of Several Strains of Influenza Virus in Vitro and Reduction of Symptoms by an Elderberry Extract {Sambucus nigra L.) during an Outbreak of Influenza B Panama, THE JOURNAL OF ALTERNATIVE AND COMPLEMENTARY MEDICINE (1995)
  4. Randomized Study of the Efficacy and Safety of Oral Elderberry Extract in the Treatment of Influenza A and B Virus Infections, The Journal of International Medical Research (2004)
  5. Elderberry Supplementation Reduces Cold Duration and Symptoms in Air-Travellers: A Randomized, Double-Blind Placebo-Controlled Clinical TrialNutrients (2016)
  6. Elderberry Extract Outpatient Influenza Treatment for Emergency Room Patients Ages 5 and Above: a Randomized, Double-Blind, Placebo-Controlled Trial.  J Gen Intern Med (2020)

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A How To Use Elderberry For Optimal Health Guide!


You've heard about elderberry but don't know much about it or how to use it. Inside the guide, you'll everything you've ever wanted to know, like:


✅ The health benefits of elderberry

✅ The right type of elderberry for you
✅ How to use elderberry effectively
✅ Common elderberry myths
✅ Frequently asked questions
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