Common GMO Crops and How They Are Used
While the list of bioengineered foods is relatively short, they are used to produce a wide array of ingredients found in countless products. In the United States, a handful of crops are grown predominantly from genetically engineered seeds, leading to their widespread presence in the food supply.
Corn
Well over 90% of corn grown in the U.S. is genetically modified. While much of it is used for livestock feed, it also becomes a staple ingredient in human food products.
Processed Ingredients from GMO Corn:
- Cornstarch and modified food starch (thickeners in soups and sauces)
- High-fructose corn syrup (sweetener in sodas and juices)
- Corn oil (used for frying and in dressings)
- Corn meal and corn flour (used in chips, cereals, and baked goods)
Soybeans
Soybeans are the second largest GMO crop in the U.S., with over 94% of the crop being genetically modified. Like corn, a large portion is used for animal feed, but soy derivatives are prevalent in processed foods.
Processed Ingredients from GMO Soybeans:
- Soybean oil (found in mayonnaise, dressings, and snack foods)
- Soy lecithin (an emulsifier in chocolates, candies, and baked goods)
- Soy protein (used in protein shakes, veggie burgers, and infant formula)
- Tofu and edamame (unless organic, are likely GMO)
Canola
An estimated 95% of canola grown in the U.S. is genetically engineered. This crop is primarily used to produce canola oil, a cooking oil found in many processed foods.
Sugar Beets
More than half of the granulated sugar sold in U.S. supermarkets is made from GMO sugar beets, which are engineered for herbicide resistance. Products listing "sugar" on the label, without specifying "cane sugar," are likely derived from GMO sugar beets.
Bioengineered Fruits and Vegetables
While most GMOs are processed into ingredients, a few genetically engineered fruits and vegetables are sold whole in produce sections.
- Papaya: The 'Rainbow' papaya, resistant to the ringspot virus, saved Hawaii's papaya industry.
- Apples: Certain 'Arctic®' apple varieties are engineered to resist browning when sliced, which helps reduce food waste.
- Potatoes: Some potato varieties are modified to resist bruising and produce less acrylamide when cooked at high temperatures.
- Summer Squash: Some summer squash and zucchini are resistant to certain viruses.
- Pink Pineapple: A genetically modified pink-fleshed pineapple, enhanced with lycopene, has been approved for sale.
How to Identify Bioengineered Foods with Labeling
Since January 2022, the U.S. Department of Agriculture (USDA) has required food manufacturers to label products containing bioengineered ingredients. This standard uses the term "bioengineered" (BE) and often includes a symbol or a QR code linking to more information.
Understanding the Bioengineered (BE) Label
- A circular green and white symbol indicating a "bioengineered" food.
- The phrases "contains a bioengineered food ingredient" or "genetically engineered" written on the package.
- Voluntary disclosure for products where the modified DNA is not detectable, such as refined oils and sugars, using phrases like "derived from bioengineering".
For consumers seeking to avoid GMOs, the "Non-GMO Project Verified" seal is another key indicator. Additionally, any product with a "USDA Certified Organic" label is prohibited from using GMOs.
Bioengineered and Non-Bioengineered Labeling: A Comparison
| Feature | Bioengineered (BE) Label | Non-GMO Project Verified | USDA Certified Organic |
|---|---|---|---|
| Regulation | Required by USDA for products containing detectable BE DNA, with some exceptions. | Voluntary third-party verification, stricter standards. | Federally regulated standard; prohibits GMOs. |
| Symbol | A circular green and white 'BE' symbol. | A butterfly logo with 'Non-GMO Project Verified' text. | Green and white circular seal with 'USDA Organic' text. |
| Scope | Applies only to food with detectable modified genetic material. | Covers products free of genetically modified ingredients down to trace amounts (<0.9%). | Prohibits GMOs and defines requirements for farming practices, including pesticides. |
| Traceability | Based on the final product's detectable genetic material. | Requires testing and auditing to ensure compliance throughout production. | Requires strict record-keeping and practices throughout the supply chain. |
Conclusion
Foods made with GMO ingredients are widespread, appearing both as whole produce like apples and papaya, and as common additives in processed items like snacks, cereals, and baked goods. Common GMO crops include corn, soybeans, canola, and sugar beets, which are processed into oils, sweeteners, and starches that end up in a vast number of products. Since 2022, the USDA's "bioengineered" label, alongside voluntary third-party seals like the Non-GMO Project Verified and the certified organic label, helps consumers identify products containing GMOs or their derivatives. Understanding these common sources and how to interpret food labels empowers consumers to make choices that align with their preferences and dietary needs.
For more detailed information on specific bioengineered foods, consult the USDA's List of Bioengineered Foods.