Standards

GFCO Gluten-Free

GFCO Gluten-Free is a third-party certification program that verifies products meet a stricter gluten threshold than the baseline U.S. FDA gluten-free labeling rule.

GFCO Gluten-Free is not just a marketing claim.

It is a third-party certification program built around gluten control, testing, and manufacturing oversight.

That matters because the structural question is different from a general “free-from” label.

Under U.S. FDA rules, a food labeled gluten-free must contain less than 20 ppm gluten.
GFCO certification is typically stricter, using a threshold of 10 ppm or less and pairing that threshold with auditing and verification requirements.

At a high level, GFCO centers on four signals:

  • Lower gluten threshold — whether the product meets a tighter standard than the baseline FDA labeling rule
  • Third-party oversight — whether compliance is checked outside the brand itself
  • Facility and process controls — whether manufacturing systems reduce cross-contact risk
  • Ongoing verification — whether certification is maintained rather than declared once

GFCO adds confidence for people who need gluten avoidance to be reliable.

It does not confirm potency, ingredient quality, or formulation logic in the broader supplement sense.

A product can be genuinely well controlled for gluten —
and still be weak on dose, form, or overall design.

GFCO improves certainty about exclusion.
It does not establish supplement quality by itself.