Why Is Supplement Quality Important

As supplement consumers ourselves—and as professionals trained in pharmacy, PhD-level health sciences, and data analysis and interpretation—we use our unique, multidisciplinary background to help consumers focus on what truly matters and filter out the noise in the supplement world.

Consumers constantly see claims like “high-quality” and “backed by science”

But what do those claims really mean?

The #1 reason people take vitamins and supplements is to experience real health benefits¹.

To achieve that, consumers need products that:

  • Are supported by strong, reliable scientific evidence
  • Do not introduce unnecessary health risks

Unfortunately, Research Has Shown That:

  • Up to 95% of vitamins and supplements may have inaccurate labels²⁻⁴
  • Up to 50% of vitamins and supplements have been found to contain undeclared or banned substances⁵
  • Only 4–12% of vitamins and supplements are certified by trusted third parties for quality⁶˒⁷
  • Around 23,000 people in the U.S. visit the emergency room (ER) each year because of supplement-related problems⁸
  • For comparison, millions of ER visits happen each year due to medicines⁹
  • It does not mean all supplements are harmful.

    It does mean consumers may want to take extra care in choosing
    the supplements they use

  • Why do we generally not see long-term benefits from vitamins and supplements?¹⁰˒¹¹

    • Scientific support varies greatly between different ingredients and suggested uses.
    • Inconsistent product quality may reduce benefits—or increase risks.

    At Truth Full Health, we are committed to ensuring that EVYLO is the highest-quality product available to support heart and metabolic health—and we are dedicated to sharing the proof with you.

¹ Pew Charitable Trusts. Q1141 Perceptions of Dietary Supplements and the FDA: Topline Results. October 2019. Accessed December 2, 2025 https://www.pewtrusts.org/-/media/assets/2019/10/dietary_supplement_survey_topline_results.pdf

² Title: Analysis of select dietary supplement products marketed to support or boost the immune system. First author: C. Crawford. Journal: JAMA Network Open. Year of publication: 2022.

³ Title: Resveratrol food supplement products and the challenges of accurate label information to ensure food safety for consumers. First author: M. Bensa. Journal: Nutrients. Year of publication: 2023.

Title: Label accuracy of weight loss dietary supplements marketed online with military discounts. First author: C. Crawford. Journal: JAMA Network Open. Year of publication: 2024.

Title: Prevalence of adulteration in dietary supplements and recommendations for safe supplement practices in sport. First author: A.R. Jagim. Journal: Frontiers in Sports and Active Living. Year of publication: 2023.

⁶ Title: Third-party evaluation: A review of dietary supplements dispensed by military treatment facilities from 2007 to 2011. First author: D.R. Jones. Journal: Military Medicine. Year of publication: 2015.

Title: Third-party certification of dietary supplements: prevalence and concerns. First author: A. Cancio. Journal: Military Medicine. Year of publication: 2012.

Title: Emergency department visits for adverse events related to dietary supplements. First author: N. Shehab. Journal: New England Journal of Medicine. Year of publication: 2015.

Title: US emergency department visits attributed to medication harms, 2017–2019. First author: D.S. Budnitz. Journal: JAMA. Year of publication: 2021.

¹⁰ Title: Multivitamin use and mortality risk in 3 prospective US cohorts. First author: E. Loftfield. Journal: JAMA Network Open. Year of publication: 2024.

¹¹ Title: Supplemental vitamins and minerals for cardiovascular disease prevention and treatment: JACC Focus Seminar. First author: D.J.A. Jenkins. Journal: Journal of the American College of Cardiology. Year of publication: 2022.