GFCO vs Other Gluten-Free Certifications

Gluten-free certifiers differ first by threshold: GFCO certifies at 10 ppm with annual on-site audits, GFFP and CSA (Celiac Support Association) at 5 ppm, and GFCP (NSF-administered) and V-Cert at the FDA's 20 ppm baseline. GFCO is the most widely stocked mark; a 2024 review found some certified products tested above the threshold. Choose by the threshold your product meets and the specific seal your retail buyers name.