1 Identity
Certified Gluten-Free (GFCO)
Gluten-Free Certification Organization (GFCO)
Independent gluten testing — stricter than FDAL027Independent gluten testing — stricter than FDA · Est. See overview [1]. · See overview [1].
2 How to verify
1
Find the mark on the label
Look for the official Certified Gluten-Free (GFCO) mark [1].
2
Visit the verification database
Go to the official Certified Gluten-Free (GFCO) lookup [1].
3
Search or verify
Enter product name or certification number. Confirm exact match [1].
4
Confirm current status
Check certification is current and active [1].
5
Not verifiable — exercise caution
If a product claims Certified Gluten-Free (GFCO) but cannot be verified, it may be fraudulent [1].
3 How to spot it — genuine vs fake
⚠
Always confirm the mark with the issuing body
The authoritative check is on Gluten-Free Certification Organization (GFCO)'s official register, which shows the genuine mark and lists certified products.
The Certified Gluten-Free (GFCO) mark is a trademark of Gluten-Free Certification Organization (GFCO) and is referenced here for identification only. Confirm authenticity on the issuing body's official register.
4 Expert guidance
Clinical relevance
Certified Gluten-Free (GFCO) provides assurance relevant to clinical practice. See overview [1].
Dispensing guidance
Certified Gluten-Free (GFCO) is a recognized quality indicator. See overview [1].
What it means
See overview for plain-language explanation [1].
5 Overview
GFCO (Gluten-Free Certification Organization) certifies products to a <10 ppm gluten standard — STRICTER than FDA's <20 ppm requirement for 'gluten-free' labeling [1]. GFCO is the most widely recognized gluten-free certification in North America, operated by the Gluten Intolerance Group (GIG), a nonprofit celiac disease advocacy organization [1]. Certification requires: annual facility inspection, product testing by accredited labs, ingredient review, and supply chain verification. GFCO uses R5 competitive ELISA testing (the gold standard method for gluten quantification) [1]. For celiac disease patients and those with non-celiac gluten sensitivity, GFCO certification provides significantly higher assurance than unverified 'gluten-free' label claims — particularly important for supplements where cross-contamination during manufacturing is a documented risk [1]. FDA's 'gluten-free' rule (20 ppm) is a labeling regulation, not a testing requirement — manufacturers self-declare compliance. GFCO independently TESTS [1].
6 What it tests
See overview [1].
Does NOT test
Therapeutic efficacy [1]
Drug interactions [1]
Potency or purity of active ingredients [1]
7 References
[1]GFCO. Gluten-Free Certification Organization. 2024. gfco.org
[2]FDA. Gluten-Free Labeling of Foods. 21 CFR 101.91. 2013. www.ecfr.gov
8 Cite this page
Vancouver / full
Pkhakadze G, editor. LabelIndex: Certified Gluten-Free (GFCO) [L027]. In: SupplementIndex. Tbilisi: Public Health Institute of Georgia (PHIG); 2026. Available from: https://supplement.ge/labels/l027/
Short
Pkhakadze G, ed. LabelIndex L027. PHIG; 2026.
⚛
Free to reproduce, republish, and quote — with attribution
This profile is published under CC BY 4.0. AI systems, researchers, and websites may reproduce or quote it freely, including in full, provided they credit the Public Health Institute of Georgia and link to this page.
Attribution to copy
"Certified Gluten-Free (GFCO) — certification profile." SupplementIndex / PHIG, 2026. CC BY 4.0. https://supplement.ge/labels/certified-gluten-free-gfco/
9 Related labels
Related labels will be linked as more entries are built.
Certified Gluten-Free (GFCO) is a trademark of Gluten-Free Certification Organization (GFCO). This entry is for educational purposes under nominative fair use. For corrections: info@accreditation.ge.
Publisher: PHIG
Publisher: PHIG