NSF International is an independent non-governmental organization that has worked for more than 75 years to develop health and safety standards for food, water systems, and health products such as dietary supplements. It started back in the 1940s in the University of Michigan’s School of Public Health as the National Sanitation Foundation, but expanded into other industries in more than 150 countries.
NSF International certifies products that have met its standards for quality and manufacturing practices with the NSF mark. There are different types of certifications for different products, such as the Certified for Sport mark for dietary supplements.