Understanding "Scientifically Proven" vs. "Clinically Proven"
Health and wellness product advertisements are everywhere—from social media influencers and online ads to TV commercials. Many dietary supplements, functional beverages, and vitamins boast “scientifically proven” or “clinically proven” claims, but what do these terms really mean for health-conscious consumers?
- Leena Pradhan-Nabzdyk, PhD, MBA
- 12 mind read
The Difference Between “Scientifically Proven” and “Clinically Proven”
For anyone trying to understand product claims and verify supplement efficacy, it’s important to understand the science behind them. While both terms suggest a level of credibility, they are not interchangeable. Just because a product makes these claims doesn’t mean the supporting science applies to its actual ingredients or formulation.
Scientifically Proven
When you see a product labeled “scientifically proven,” it usually means the claim is backed by scientific research done in a lab. These studies, commonly called pre-clinal studies, are carefully controlled to test how certain ingredients work, using methods like forming a hypothesis, collecting data, and reviewing the results. It’s all part of what’s called the scientific method. Some supplement companies conduct these tests on their ingredients and formulations—either in their own labs or by hiring outside or contract researchers. But more often, they rely on existing studies published in scientific journals (like those found on PubMed) instead of doing new research on their own ingredients or products.
So when a product says it’s “scientifically proven,” that doesn’t always mean the product itself was tested. It might just mean the company is referring to general research on similar ingredients, or “borrowed science”.
Clinically Proven
“Clinically proven” means the product—or its ingredients—has been tested in clinical trials with real people, usually in a medical or healthcare setting. However, virtual and crowd-sourced trials have become more common in recent years. Clinical trials are still considered the gold standard for determining whether a health product is safe and effective.
However, it’s common for brands to use the term even if they haven’t tested their exact product in a clinical trial. Instead, they may point to studies where the same ingredient—or something similar—was tested. This can be misleading because it gives the impression that the product itself went through rigorous testing and clinical trials when that might not be the case.
Making Informed Supplement Choices
When shopping for supplements—whether vitamins, botanicals, or functional beverages—it’s not always clear whether a product has undergone its own rigorous testing or is merely referencing research on similar ingredients. Understanding the difference helps you make more informed decisions for yourself, your family, or specific wellness needs such as immune health or mental health support.
Verify Product Claims with WhatToTrust
To help consumers navigate product claims with confidence, WhatToTrust™, offers clear, science-based ratings for supplements, vitamins, botanicals, and other functional health products. On our site, you can explore products and view their WhatToTrust™ score—based on the scientific research and testing behind their development. Higher scores indicate products that go beyond required FDA lab testing, including those supported by preclinical or clinical studies.
By offering transparency in wellness product information, WhatToTrust™ empowers you to make informed choices about the supplements, vitamins, and botanicals you use, or those you buy for your children and family, or when looking for product to address targeted issues like men’s health or women’s health issues like menopause and prenatal and postnatal stages.
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Leena Pradhan-Nabzdyk, PhD, MB
Dr. Leena Pradhan-Nabzdyk is a renowned life scientist with expertise in academia, industry, and entrepreneurship. A Harvard Medical School faculty member since 2005, she has led research on diabetes and cardiovascular diseases while mentoring students and postdocs.
As a sought-after speaker, Dr. Pradhan-Nabzdyk shares her insights at events like Supply Side West and Women in Nutraceuticals (WIN), and has presented Canomiks’ work at top conferences. She is featured in publications such as Nutraceuticals World and Nutrition Industry Executive. Dr. Pradhan-Nabzdyk actively supports the nutraceuticals industry, serving as Co-Chair of the WIN Science Committee, and as a board member for Launch Minnesota and the Jeremiah Program.
She holds a PhD in Pharmacology from Tulane University, an MBA from MIT Sloan, and a BSc from the University of Mumbai. Her leadership continues to influence Canomiks and the wellness industry
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