Test Method

NSF International updates pesticide test requirements for supplements, minimizes ‘zero tolerance’

09-Aug-2018 By Adi Menayang

Instead of relying on a ‘precautionary zero tolerance’ for pesticide residue in dietary supplements, NSF International updated the maximum allowable level for companies to pass its quality test.

Company looks for metabolites associated with gut health via pinprick blood test

20-Jul-2018 By Hank Schultz

A personalized nutrition startup called Ixcela is taking a unique tack toward microbiome health by measuring metabolites in the blood that are associated with healthy gut functioning.

Testing failure, specification limits cited in FDA warning letters

13-Feb-2017 By Hank Schultz

A realistic testing regime and reasonable range on specified ingredient potencies were among the quality control issues cited by the Food and Drug Administration in recent warning letters.

There's no easy answer to question of which test methods to use, forum attendees told

13-Nov-2015 By Hank Schultz

Despite pressure on the industry to rapidly adopt some form of DNA testing, the old question still remains: Methods must be fit for purpose for the products being tested. Attendees at a recent industry event were told that there’s still no quick answer...