Who’s behind it:

*Gluten-Free Certification Organization (gfco.org), part of the nonprofit Gluten Intolerance Group.

What it means:

*The product contains less than 10-ppm gluten (or 5-ppm gliadin, one of two main gluten proteins).

*The product undergoes yearly certification based on ingredient reviews, on-site inspection, and product testing.

Look for it on:

Baking mixes, flours, cookies, cakes, crackers, snack bars, and supplements.