Glossary snapshot
Non-GMO Project Verified
Why it matters
Genetically modified organisms (GMOs) are widespread in the U.S. food supply. Over 90% of corn, soybeans, and canola grown in the United States are genetically modified. Since the FDA does not require labeling of GMO ingredients (though the USDA's Bioengineered Food Disclosure Standard took effect in 2022), consumers who want to avoid GMOs have historically had limited ways to identify them at the grocery store.
Good signals
The Non-GMO Project uses a process-based verification system.
Watch-outs
**Non-GMO does not mean organic, pesticide-free, or healthy.** A bag of Non-GMO verified candy is still candy. The seal only addresses genetic modification, not pesticide use, nutritional quality, or any other health claim.
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What Is Non-GMO Project Verified?
Non-GMO Project Verified is a certification from the Non-GMO Project, North America's most recognized third-party verification for products made according to best practices for GMO avoidance. The butterfly seal indicates that a product has gone through the organization's verification process, which includes ongoing testing of at-risk ingredients to confirm they are not genetically modified.
Why It Matters
Genetically modified organisms (GMOs) are widespread in the U.S. food supply. Over 90% of corn, soybeans, and canola grown in the United States are genetically modified. Since the FDA does not require labeling of GMO ingredients (though the USDA's Bioengineered Food Disclosure Standard took effect in 2022), consumers who want to avoid GMOs have historically had limited ways to identify them at the grocery store.
The Non-GMO Project fills this gap with a clear, recognizable label. Whether your reasons for avoiding GMOs are environmental (concerns about monoculture, herbicide use, and biodiversity), health-related (precautionary preference), or philosophical (concerns about corporate control of the seed supply), the butterfly seal gives you a straightforward way to identify products that meet a defined avoidance standard.
How It Works
The Non-GMO Project uses a process-based verification system. Here is what it involves:
Risk Assessment: The organization evaluates every ingredient in a product to determine whether a GMO version exists in commercial production. High-risk crops include corn, soy, canola, cotton, sugar beets, alfalfa, papaya, zucchini, yellow squash, and potatoes.
Testing: Ingredients identified as high-risk are tested at various points in the supply chain. The threshold for compliance is 0.9% — meaning up to 0.9% of a high-risk ingredient can be GMO (to account for cross-contamination during growing, harvesting, and processing) and still qualify. This is more permissive than the EU's 0.9% threshold but stricter than having no standard at all.
Ongoing Monitoring: Verification is not a one-time event. Companies must maintain traceability documentation and submit to annual re-verification. Testing is performed by accredited third-party labs.
Labeling: Products that pass verification can display the butterfly seal. The verification covers the product as sold, including all ingredients and processing aids.
What to Watch Out For
- Non-GMO does not mean organic, pesticide-free, or healthy. A bag of Non-GMO verified candy is still candy. The seal only addresses genetic modification, not pesticide use, nutritional quality, or any other health claim.
- Some Non-GMO labels appear on products where no GMO version exists. You might see the butterfly seal on water, salt, or cat litter — products for which there is no GMO equivalent. This is technically accurate (they are non-GMO) but can feel misleading. The Non-GMO Project has faced criticism for this practice.
- The 0.9% threshold allows some GMO presence. Due to the realities of agricultural supply chains, complete GMO avoidance is nearly impossible. The 0.9% tolerance is a practical compromise, not a guarantee of zero GMO content.
The Bottom Line
Non-GMO Project Verified is the most reliable label for consumers who want to avoid genetically modified ingredients. It provides meaningful verification through testing and supply chain monitoring. Just remember that it speaks only to GMO status — not to whether a product is organic, healthy, or environmentally responsible in other ways.
Frequently Asked Questions
If a product is USDA Organic, is it also Non-GMO?
USDA Organic standards prohibit the intentional use of GMOs, so organic products should be free of genetically modified ingredients. However, organic certification does not require the same level of GMO-specific testing that the Non-GMO Project does. Some products carry both labels for added assurance.
Are GMOs dangerous to eat?
The scientific consensus from organizations like the National Academies of Sciences, WHO, and FDA is that approved GMO foods are safe to eat. However, many consumers avoid them due to environmental concerns (increased herbicide use, monoculture farming), ethical concerns (corporate control of seeds), or a general precautionary approach. The debate is more nuanced than "safe vs. dangerous."
What does "bioengineered" mean on food labels?
The USDA's Bioengineered (BE) Food Disclosure Standard requires disclosure of foods that contain detectable modified genetic material. The term "bioengineered" is the government's term for what consumers commonly call "GMO." However, the BE standard has a higher detection threshold and covers fewer products than Non-GMO Project verification.