Pharmacist’s Corner: Finding High-Quality Nutraceuticals

Jun 9, 2020 / Practitioner Updates


Whether you call them nutraceuticals, supple­ments, or something else, you probably rely on these supportive products for treatment at times. Nutraceuticals are not FDA-approved. They are not considered drugs, and the labeling is not allowed to make therapeutic claims. They must bear a statement such as “This product is not intended to diagnose, cure, treat or mitigate disease.”

These products vary in quality. One study found that 9 of 11 chondroitin sulfate products tested did not match label claims; the variance ranged from 0 to 115% of the labeled strength. Less expensive products did have more variation, but costly products also had variation (1).

Tips for finding high-quality products

  • Obtain products from reputable sources. Avoid going with the cheapest option you find online. Stick to online pharmacies that have a “.pharmacy” domain name. Sites approved by the National Associations of Boards of Pharma­cy will work with either “.com” or “.pharmacy.”
  • Since there can be a lot of variation between brands, use the same brand cited by studies showing efficacy.
  • Stick with known brands and ones bearing a quality verification stamp from ConsumerLab, NSF International, U.S. Pharmacopeia (USP) or UL; these products have been verified to contain what the label says they contain.
  • Ingredients should be expressed in either met­ric or apothecary units. If a single product uses a mix of units, this may indicate a low-quality product.

Additional resources for information on nutraceu­ticals include:

  • Quackwatch (
  • NCCIH (
  • ConsumerLab (
  • ACVN (

By Lauren Forsythe,
Medication Dispensary Coordinator

  1. Adebowale AO, Cox DS, Liang Z, et al. Analysis of Glu­cosamine and Chondroitin Sulfate Content in Marketed Products and the Caco-2 Permeability of Chondroitin Sulfate Raw Materials. JANA;3(1):37-44.