Non-GMO and Identity-Preserved Cooking Oil Explained

For many food brands and retailers, “non-GMO” is no longer optional: it is a customer requirement, a retailer policy or a legal labeling question. For cooking oil, the answer depends on the crop, the market and the paperwork behind each delivery. This guide explains which oils are affected, how the rules treat them, and how to buy non-GMO oil with confidence.

Which oils come from genetically modified crops?

Only some oil crops are widely grown from genetically modified (GM), also called genetically engineered or bioengineered, varieties:

• Commonly GM: soybean, canola (rapeseed), corn (maize) and cotton. In the United States, more than 90% of corn, upland cotton and soybeans are grown from genetically engineered varieties, according to USDA’s Economic Research Service. Canola grown in North America is also mostly GM.
• Not commercially grown as GM: sunflower, safflower, olive, avocado, palm, coconut, sesame, rice bran, peanut and most specialty seed and nut oils.

That means a non-GMO requirement is easy to meet for some oils, and needs careful sourcing for others. Note that some oils bred for special traits are not GM: high-oleic sunflower, for example, comes from conventional breeding. Others, such as some high-oleic soybean varieties, were developed with genetic engineering. Our guide to high-oleic oil explains more.

How labeling rules treat refined oils

Refining removes almost all protein and DNA from oil, so a highly refined oil from a GM crop may contain no detectable modified genetic material. Markets treat this differently:

• European Union. Food produced from GMOs must be labeled as such, whether or not modified DNA can be detected in the final product, so refined oil from GM soybeans or rapeseed must carry a GM label. Accidental or technically unavoidable presence below 0.9% per ingredient does not trigger labeling.
• United States. The National Bioengineered Food Disclosure Standard requires disclosure of bioengineered foods. USDA’s rules excluded highly refined foods in which modified genetic material is undetectable, but in October 2025 a federal appeals court held that this exclusion conflicts with the law and sent the rule back for further review. Labeling obligations remain in effect while the rule is reconsidered, so check the current position before finalizing labels.
• Other markets have their own rules, from mandatory labeling with thresholds to none at all.

Non-GMO vs identity-preserved

• Non-GMO means the oil comes from non-GM crops. For crops where GM varieties are common, that has to be shown, not assumed.
• Identity preservation (IP) is the system that shows it. Non-GM seed is kept separate from GM seed from the farm onward, through storage, transport, crushing, refining and packing, with testing and documentation at each step so the oil can be traced back to its source.
• Third-party verification, such as the Non-GMO Project Verified program, audits these controls against a published standard and allows the use of its mark on qualifying products.

What to ask for

1. Say what you need at the quotation stage: non-GMO, identity-preserved, or a specific verification, and for which oils.
2. Ask for documentation: a non-GMO statement or certificate covering the product supplied, and identity preservation records where needed.
3. Ask about testing. For crops such as soybean, canola and corn, testing of the seed or crude oil, where DNA is still present, supports the claim.
4. Check that certificates cover the exact product, grade and site, and are current.
5. Match your label to your market. A “non-GMO” claim, or a verification mark, must meet the rules and program requirements where you sell.

Practical choices

• Want the simplest non-GMO option? Choose an oil from a crop not grown as GM, such as sunflower, high-oleic sunflower, olive, avocado, rice bran or palm-based oils.
• Need soybean, canola or corn oil specifically? Ask for identity-preserved or verified non-GMO supply, and expect a premium for the separate handling.
• Buying for the EU? Remember that refined oil from GM crops must be labeled there, so non-GMO sourcing affects the label, not just marketing.

Our approach

Wholesale Cooking Oil LLC holds Non-GMO Project Verified status, among other certifications. As with every certification, coverage depends on the product and grade, so tell us in your quote request if you need non-GMO, identity-preserved or verified oil, and we will confirm what can be supplied with documentation.

Copies of our certificates are available through our certificate request form. See also our guides to canola vs sunflower vs soybean oil and writing a purchase specification, or add your oils to your quote list.

Sources

• USDA Economic Research Service: Recent trends in genetically engineered crop adoption
• Morrison Foerster: Ninth Circuit strikes down key provisions of USDA’s bioengineered food disclosure rule (2025)
• Regulation (EC) No 1829/2003 on genetically modified food and feed