Genetically modified organisms - commonly called GMOs, or bio-engineered foods - are among the most discussed topics in food transparency. Yet despite widespread awareness of the term, most shoppers are unsure exactly which products contain GMO-derived ingredients, or how to identify them on a label.
This guide explains what GMO ingredients are, which are most commonly found in packaged food, how labelling rules differ between the UK, Australia, and New Zealand, and how to make informed choices when shopping.
What does GMO mean?
A genetically modified organism (GMO) - also called a genetically engineered (GE) or bio-engineered organism - is one whose genetic material has been altered using biotechnology in a way that does not occur naturally through conventional breeding or natural recombination.
In agriculture, genetic modification is most commonly used to make crops resistant to specific herbicides, resistant to certain pests, or able to tolerate particular growing conditions. The most widely grown GM crops globally are soy, maize (corn), canola (rapeseed), cotton, and sugar beet.
Are GMO foods safe?
Get The Hidden Additives Guide free
20 additives, plain-English explanations, cited research. Instant download.
The major global scientific and regulatory bodies - including the World Health Organisation (WHO), the European Food Safety Authority (EFSA), Food Standards Australia New Zealand (FSANZ), and the US National Academies of Sciences - have concluded that currently approved GM foods are as safe to eat as their conventional equivalents.
However, public debate continues - particularly around environmental impacts, biodiversity, corporate control of the food supply, and the long-term health effects of consuming products from herbicide-resistant crops that may have higher pesticide residues than conventional equivalents.
For many shoppers, the question is not necessarily about safety - it is about transparency and the right to know what is in their food.
GMO labelling rules by country
🇬🇧 United Kingdom
GM food must be labelled if it contains, consists of, or is produced from GMOs. Highly refined ingredients (like some oils) may be exempt if no GM DNA or protein is detectable. Post-Brexit rules broadly follow previous EU requirements.
🇦🇺🇳🇿 Australia & NZ
FSANZ Standard 1.5.2 requires labelling of food that contains novel DNA or novel protein from a GM source. Highly refined products like oils and sugars where GM material is undetectable may be exempt from labelling requirements.
🇺🇸 United States
The USDA National Bioengineered Food Disclosure Standard (NBFDS) requires disclosure of bio-engineered ingredients, either via text, symbol, or QR code. The term used is "bio-engineered" rather than GMO.
Important: Labelling exemptions mean that highly refined ingredients derived from GM crops - such as highly refined canola oil or corn syrup - may not require a GM label even if they originate from GM crops, because the refining process removes detectable GM DNA and protein. This is why scanning ingredients is more reliable than relying on label claims alone.
The most common GMO-derived ingredients in packaged food
🧬 Commonly GMO-derived ingredients to look for
How to avoid GMO ingredients
If you prefer to avoid GMO-derived ingredients, the most reliable approaches are:
- Choose certified organic: Organic certification in the UK, EU, Australia, and NZ prohibits the use of GM ingredients. If a product is certified organic, its ingredients are non-GMO by definition.
- Look for non-GMO certification: Products carrying a "Non-GMO Project Verified" seal (US/Canada) or similar non-GMO certification have been independently verified.
- Check the origin of sugar: Products listing "cane sugar" rather than just "sugar" are using sugar from sugar cane rather than potentially GM sugar beet.
- Scan before you buy: SustiScan automatically flags commonly GMO-derived ingredients in any product you scan, based on ingredient analysis.
A balanced perspective
It is worth noting that genetic modification as a technology is broad - and different applications raise different considerations. Golden rice, for example, was developed to address vitamin A deficiency in developing countries, while many GM crops are primarily designed to increase herbicide tolerance for commercial agricultural efficiency.
Making an informed choice about GMO ingredients means understanding both the potential benefits and the legitimate questions that remain - about environmental impact, agricultural biodiversity, and the transparency of the food system. SustiScan provides the information - the choice is always yours.
Scan any product for GMO ingredients instantly
SustiScan flags commonly bio-engineered ingredients automatically - free to try for 7 days.
Try SustiScan Free