What Is a Genetically Modified Organism?
A genetically modified organism (GMO) is any organism — plant, animal, or microorganism — whose genome has been altered using genetic engineering techniques.[1] In the context of food and consumer products, "GMO" almost always refers to crop plants that have been modified in a laboratory to introduce traits not achievable through conventional breeding — such as resistance to herbicides, tolerance to drought, or production of insecticidal proteins.
The most common genetic engineering techniques used in agriculture include:[2]
- Agrobacterium-mediated transformation — using a naturally occurring soil bacterium to introduce new DNA into plant cells
- Biolistics (gene gun) — physically shooting DNA-coated particles into plant cells
- CRISPR-Cas9 — a newer technique that edits existing genes rather than introducing foreign DNA; regulatory status as "GMO" varies by country
The FDA prefers the term "bioengineered" (BE) food for regulatory labeling purposes, implemented through the National Bioengineered Food Disclosure Standard (NBFDS). Under U.S. law, foods containing detectable genetically engineered material above certain thresholds must be disclosed as bioengineered. "Non-GMO" claims on labels are not regulated by the FDA — only the bioengineered disclosure requirement is mandatory.[3]
High-Risk Crops in the U.S.
Not all crops have GMO varieties available commercially. The Non-GMO Project maintains a list of "high-risk" crops where GMO varieties are commonly grown in the United States.[4] Ingredients derived from these crops carry significant risk of GMO contamination without explicit verification:
| Crop | % of U.S. acreage that is GMO | Primary GMO traits |
|---|---|---|
| Soybeans | ~94%[5] | Herbicide tolerance (Roundup Ready) |
| Corn (field) | ~92% | Herbicide tolerance, insect resistance (Bt) |
| Cotton | ~94% | Herbicide tolerance, insect resistance |
| Canola | ~90% | Herbicide tolerance |
| Sugar beets | ~99% | Herbicide tolerance |
| Alfalfa | ~30% | Herbicide tolerance |
| Papaya (Hawaiian) | ~80% | Ringspot virus resistance |
| Summer squash | Small percentage | Virus resistance |
Derivatives of high-risk crops — including soy lecithin, corn syrup, canola oil, and beet sugar — are common ingredients in processed foods and personal care products. Even a product that doesn't contain whole corn or soy may contain GMO-derived ingredients unless verified.
Non-GMO Project Verified — The Primary U.S. Certification
The Non-GMO Project is a nonprofit organization that operates the only independent, third-party verification program for non-GMO food and products in North America.[6] Products bearing the Non-GMO Project Verified butterfly seal have:
- Been evaluated by an approved independent technical administrator
- Tested all high-risk ingredients against an action threshold of 0.9% GMO presence (below this threshold, product may still display the seal)
- Provided documentation of the supply chain for all ingredients derived from high-risk crops
- Committed to annual re-verification to maintain certification
Non-GMO Project Verified products are tested to an action threshold of 0.9% GMO presence — the same threshold used by the European Union for mandatory GMO labeling.[7] Products below this threshold can carry the seal even if trace GMO contamination is technically present. True zero-GMO content is practically difficult to guarantee given cross-pollination and shared supply chains in commodity agriculture.
USDA Organic vs. Non-GMO — Not the Same
This is one of the most common sources of confusion among label-conscious shoppers. Here is the precise relationship:[8]
| Claim | Prohibits GMOs? | Prohibits synthetic pesticides? | Covers full supply chain? | Third-party audited? |
|---|---|---|---|---|
| USDA Organic | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Non-GMO Project Verified | ✓ Yes (to 0.9%) | ✗ No | ✓ Yes | ✓ Yes |
| USDA Organic + Non-GMO Project | ✓ Yes (both standards) | ✓ Yes | ✓ Yes | ✓ Yes |
| "Non-GMO" claim (no seal) | ≈ Unverified claim | ✗ No | ✗ No | ✗ No |
The key takeaway: all USDA Organic products are also non-GMO by definition — organic regulations explicitly prohibit the use of genetic engineering. However, Non-GMO Project Verified products are not necessarily organic — they may still use synthetic pesticides, synthetic fertilizers, and other conventional farming practices.
If you want non-GMO only — Non-GMO Project Verified is sufficient. If you want non-GMO plus no synthetic pesticides and broader farming standards — choose USDA Organic. The two certifications are complementary, and many products carry both. Carrying both is the highest level of verification for food products.
The Scientific Safety Debate
The safety of approved GMO foods for human consumption is a contested topic in public discourse, though the scientific consensus among major health and regulatory agencies is generally that currently approved GMO foods are safe to eat.[9]
The World Health Organization states that GMO foods currently available on the international market have passed safety assessments and are not likely to present risks to human health.[10] The National Academies of Sciences, Engineering, and Medicine's comprehensive 2016 review of over 900 studies found no substantiated evidence of a difference in risks to human health between currently commercialized genetically engineered crops and conventionally bred crops.[11]
The strongest scientific concerns about GMO agriculture are not primarily about direct human health effects from eating GMO food — they are about ecological and systemic impacts: herbicide-resistant weed evolution driven by Roundup Ready crops,[12] biodiversity effects of widespread herbicide application, corporate consolidation of seed supply, and the long-term sustainability of herbicide-dependent monocultures. These are legitimate concerns that exist independently of the direct food safety question.
How TheGoodFilter Verifies Non-GMO Claims
Our Standard
TheGoodFilter's Non-GMO tag is applied to products with current Non-GMO Project Verified certification or current USDA Organic certification. We do not apply the tag based on unverified brand claims. Products carrying both certifications are noted as holding dual verification — the highest standard available for non-GMO food products in the United States.
TheGoodFilter does not take a position on the broader debate about GMO agriculture. We present the Non-GMO filter as a consumer preference option — some consumers want to avoid GMO ingredients for ecological, ethical, or personal reasons regardless of the direct food safety consensus, and we respect that choice.
- 1World Health Organization. (2024). Food, genetically modified. WHO defines genetically modified organisms and describes the techniques used to alter their genomes. https://www.who.int/news-room/questions-and-answers/item/food-genetically-modified ↩
- 2U.S. Food and Drug Administration. (2024). GMO crops, animal food, and beyond. Overview of genetic engineering techniques used in agricultural biotechnology including Agrobacterium-mediated transformation, biolistics, and CRISPR. https://www.fda.gov/food/agricultural-biotechnology/gmo-crops-animal-food-and-beyond ↩
- 3U.S. Department of Agriculture, Agricultural Marketing Service. (2024). National Bioengineered Food Disclosure Standard. The NBFDS requires disclosure of bioengineered food ingredients above defined thresholds. "Non-GMO" label claims are not regulated under this standard. https://www.ams.usda.gov/rules-regulations/be ↩
- 4Non-GMO Project. (2024). High-risk crops. The Non-GMO Project maintains a regularly updated list of crops with commercially available GMO varieties that are grown in North America, which are considered high-risk for GMO presence. https://www.nongmoproject.org/gmo-facts/high-risk-crops/ ↩
- 5U.S. Department of Agriculture, Economic Research Service. (2024). Recent trends in GE adoption. USDA ERS tracks adoption rates of genetically engineered crops in the United States, updated annually. Soybean GE adoption has been above 90% since 2007. https://www.ers.usda.gov/data-products/adoption-of-genetically-engineered-crops-in-the-us/ ↩
- 6Non-GMO Project. (2024). Product verification. The Non-GMO Project describes its third-party verification process, technical administrators, testing thresholds, and annual recertification requirements. https://www.nongmoproject.org/product-verification/ ↩
- 7European Commission. (2003). Regulation (EC) No 1829/2003 on genetically modified food and feed. EU regulations require mandatory labeling of food products containing more than 0.9% authorized GMO content — the threshold adopted by the Non-GMO Project for its action level. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32003R1829 ↩
- 8U.S. Department of Agriculture, Agricultural Marketing Service. (2024). Organic and non-GMO: Complementary but different. USDA explains the relationship between organic certification (which prohibits GMOs) and Non-GMO Project certification (which does not require organic practices). https://www.ams.usda.gov/about-ams/programs-offices/national-organic-program ↩
- 9National Academies of Sciences, Engineering, and Medicine. (2016). Genetically Engineered Crops: Experiences and Prospects. The National Academies' comprehensive review of over 900 studies found no substantiated evidence of health risks from currently commercialized GE crops compared to conventionally bred crops. The National Academies Press. https://doi.org/10.17226/23395 ↩
- 10World Health Organization. (2024). Food, genetically modified — frequently asked questions. WHO states that GM foods currently available on the international market have passed safety assessments and are not likely to present risks for human health. https://www.who.int/news-room/questions-and-answers/item/food-genetically-modified ↩
- 11National Academies of Sciences, Engineering, and Medicine. (2016). Genetically Engineered Crops: Experiences and Prospects. The National Academies Press. The review is one of the most comprehensive independent assessments of GE crop safety published to date. https://doi.org/10.17226/23395 ↩
- 12Heap, I., & Duke, S. O. (2018). Overview of glyphosate-resistant weeds worldwide. Pest Management Science, 74(5), 1040–1049. Documents the evolution of glyphosate-resistant "superweeds" in response to widespread use of herbicide-tolerant GMO crops. https://doi.org/10.1002/ps.4760 ↩
- 13Non-GMO Project. (2024). Find verified products. The publicly searchable database of Non-GMO Project Verified products, updated as products are verified or removed from the program. https://www.nongmoproject.org/find-non-gmo/ ↩
References
- European Commission. (2003). Regulation (EC) No 1829/2003 on genetically modified food and feed. Official Journal of the European Union. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32003R1829
- Heap, I., & Duke, S. O. (2018). Overview of glyphosate-resistant weeds worldwide. Pest Management Science, 74(5), 1040–1049. https://doi.org/10.1002/ps.4760
- National Academies of Sciences, Engineering, and Medicine. (2016). Genetically engineered crops: Experiences and prospects. The National Academies Press. https://doi.org/10.17226/23395
- Non-GMO Project. (2024). High-risk crops. https://www.nongmoproject.org/gmo-facts/high-risk-crops/
- Non-GMO Project. (2024). Product verification. https://www.nongmoproject.org/product-verification/
- U.S. Department of Agriculture, Agricultural Marketing Service. (2024). National Bioengineered Food Disclosure Standard. USDA AMS. https://www.ams.usda.gov/rules-regulations/be
- U.S. Department of Agriculture, Economic Research Service. (2024). Recent trends in GE adoption. USDA ERS. https://www.ers.usda.gov/data-products/adoption-of-genetically-engineered-crops-in-the-us/
- U.S. Food and Drug Administration. (2024). GMO crops, animal food, and beyond. FDA. https://www.fda.gov/food/agricultural-biotechnology/gmo-crops-animal-food-and-beyond
- World Health Organization. (2024). Food, genetically modified. WHO. https://www.who.int/news-room/questions-and-answers/item/food-genetically-modified
Every product tagged Non-GMO on our site has been verified against the Non-GMO Project database or carries USDA Organic certification, which prohibits GMOs by definition.