You can rest easy knowing Nature Made is the national vitamin and supplement brand with the most products carrying the USP Verified Mark for dietary supplements. The United States Pharmacopeia (USP) is a scientific, nonprofit organization that sets federally recognized public standards of quality for medicines, dietary supplements, and foods. If it’s USP Verified, the product has been independently tested for quality and certain contaminants, so you can trust that what’s on the label is what’s in the bottle. #NatureMade #Wellness #Supplements #Vitamins