Should You Trust This Supplement? Questions to Ask Before You Buy
- Leena Pradhan-Nabzdyk, PhD, MBA
- February 18, 2026
- 3 min read
Before you buy any supplement, especially those advertised on Instagram, TikTok, or other social media, make sure you ask the right questions to determine if it has validated efficacy, is safe, and truly worth your money.
Who actually made this product?
Clear information about the company and a credible website demonstrates accountability and trustworthiness. Legitimate brands often provide the names and credentials, expertise and specialty of the scientists or physicians who helped develop the product. It’s important to confirm that these credentials match the claims, rather than relying on vague “doctor-formulated” statements, marketing language, or paid spokespeople. Keep in mind that many brands outsource manufacturing, so understanding who actually makes the product and oversees quality is also crucial.
Are the ingredients fully disclosed and in what amounts?
Look for exact ingredient dosages, not just the words “proprietary blend.” Most proprietary blends do not disclose how much of each ingredient is included. If the label lists only a blend without individual amounts, that can be a red flag. Sometimes supplements rely on trendy ingredients that sound impressive but are included in useless quantities.
Is there real evidence the product works?
Legitimate brands often provide clinical evidence showing that the actual product has been tested, not just its individual ingredients. Look for links to citations to published studies so you can verify the claims. Be cautious of “borrowed science,” where studies are cited that don’t involve the product itself. If a brand says it’s “clinically proven” or “science-backed,” the proof should be clear and verifiable. For a quick way to see how supplements score based on real scientific evidence, check the WhatToTrust™ science score.
Who is recommending it — and Why?
Influencers and creators are often paid to promote supplements. Before trusting a recommendation, consider whether they disclose the partnership, actually use the product long-term, and have relevant health or science credentials. Popularity alone does not guarantee expertise, so transparency about endorsements and incentives is key.
Do the health claims sound realistic?
Be skeptical of promises that sound too good to be true. Legitimate supplements support health but do not claim to cure, reverse, or dramatically transform the body overnight.
Final Takeaway
Doing your homework before buying a supplement helps you make informed choices for your health and your budget. By asking the right questions, looking for transparency, and checking for real clinical evidence, you can confidently select products that are evidence-based, effective, and safe.
For help evaluating supplements based on science, ingredients, and safety, visit whattotrust.com to see reliable scores and information before you buy.
In this article
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.
Related Articles
How to Talk to Your Healthcare Provider About Supplements
Choosing the right supplements for yourself or your family can be overwhelming, with more than 100,000 options on the U.S. market. As more Americans seek supplements for overall wellness, navigating marketing hype, influencer endorsements, flashy ads, and social media trends can be challenging. The key to making informed decisions is to understand what you’re taking and why, and to have a direct, informed conversation with your healthcare provider. It’s also important to remember that everyone’s needs are different, and while influencers or websites may promote supplement ‘stacks,’ what works for them may not be safe or effective for you.
What Are Decentralized Trials and Why They Matter
Decentralized clinical trials (DCT) bring research into the real world. Instead of relying on brick-and-mortar research sites, DCTs use digital tools, like wearables, at-home biosampling kits, and mobile apps, to collect study data directly from participants, wherever they are.For the wellness and nutrition industry, that means credible, product-specific evidence is now within reach.
Should You Trust This Supplement? Questions to Ask Before You Buy
Before you buy any supplement, especially those advertised on Instagram, TikTok, or other social media, make sure you ask the right questions to determine if it has validated efficacy, is safe, and truly worth your money.
