Food biotechnology uses organisms, cells or biological processes to produce or change food, food ingredients and the sources from which they are made. It includes traditional approaches such as fermentation alongside newer genetic techniques.
It is broader than genetic engineering. The UN Food and Agriculture Organization describes biotechnology as a range of traditional and modern technologies, including the production of fermented foods and the improvement of plants and animals.
Fermentation is one example
In fermentation, microorganisms and their enzymes transform substances in food. Yeast used in bread production is a familiar example. Other food processes use selected microbial starter cultures.
FAO explains how fermentation can change properties such as taste, texture and shelf life. It can also be used to produce cultures, enzymes and other ingredients for food processing.
A starter culture contains selected microorganisms used to begin a process. That does not automatically mean those organisms have been genetically engineered. Fermentation and genetic engineering describe different things.
Breeding, genetic engineering and genome editing
Conventional breeding selects and crosses plants or animals to combine useful characteristics. It can produce new varieties or breeds without creating a new species.
Genetic engineering directly modifies genetic material. DNA is the molecule carrying genetic instructions. Genome editing is a set of techniques that can make changes at targeted locations in DNA.
The FDA describes genetic engineering and genome editing as plant-breeding methods that offer greater specificity than traditional techniques. Their possible uses include pest resistance, changes to food characteristics and nutritional composition.
The method is not a guarantee that every intended change succeeds or that no unwanted effect can occur. Development, testing and evaluation remain separate steps.
Benefits depend on the product and its use
A disease-resistant crop, an ingredient-making microorganism and a fermentation starter solve different production problems. Their performance cannot be inferred from the word biotechnology alone.
For example, an added crop trait might address a particular pest. Whether it changes pesticide use, yield or production costs depends on the trait, farming conditions and management. It does not establish that every biotechnology-derived food has the same advantages.
Research, commercial availability and regulatory status are also different. A promising laboratory result is not evidence that a product is sold everywhere or that it has already improved population nutrition.
Food safety and labeling
The FDA says foods from new plant varieties must meet the same applicable safety and legal requirements as other foods. Evaluation can examine new substances, possible allergens and nutritional composition.
Labelling terms have particular legal meanings. The US bioengineered food disclosure standard uses a definition involving detectable modified genetic material and specified techniques. It is not a label for every food made using biotechnology.
The USDA explains that a bioengineered disclosure does not state a food’s health, safety or environmental attributes relative to its counterpart. A label’s absence likewise does not establish that no biotechnology was involved anywhere in production.
Last checked and updated on November 3, 2026 by the MBN editorial team.