Food safety assessment of genetically modified foods

Introduction

Genetically modified (GM) foods are food products obtained from plants, animals or microorganisms whose genetic material has been modified using modern biotechnology. Genetic modification may be introduced to improve nutritional quality, increase resistance to pests, tolerate environmental stress or enhance agricultural productivity.

Examples include insect-resistant cottonseed products, genetically modified soybean, maize and nutritionally enhanced crops. Although genetic modification offers agricultural and nutritional benefits, it may also raise concerns regarding toxicity, allergenicity, nutritional changes and unintended effects.

Food safety assessment is therefore essential before genetically modified foods are approved for consumption. In India, this assessment operates under the Environment (Protection) Act, 1986, the Rules, 1989, and the food safety framework established by the Food Safety and Standards Act, 2006.

Meaning and objectives of food safety assessment

Food safety assessment is a scientific and regulatory process used to determine whether genetically modified food is safe for human and animal consumption.

Its main objectives include:

Identifying potential toxic substances introduced through genetic modification.

Evaluating possible allergic reactions.

Comparing the nutritional composition of GM and conventional foods.

Examining unintended changes in the genetic modification process.

Assessing the stability and expression of introduced genetic material.

Protecting consumers from potential health risks.

Establishing scientifically justified conditions for food approval.

The assessment generally follows a case-by-case approach because different genetically modified crops may have different genetic characteristics and potential risks.

Legal and regulatory framework in India

1. Environment (Protection) Act, 1986

The Act provides the principal statutory foundation for regulating genetically engineered organisms in India.

Sections 3, 6 and 25 empower the Central Government to take environmental protection measures, prescribe safeguards and frame rules concerning hazardous substances and genetically engineered organisms.

2. Environment (Protection) Rules, 1989

Rules 7–11 establish the regulatory framework for activities involving hazardous microorganisms and genetically engineered organisms.

The Rules identify important regulatory authorities:

Institutional Biosafety Committee (IBSC).

Review Committee on Genetic Manipulation (RCGM).

Genetic Engineering Appraisal Committee (GEAC).

State Biotechnology Coordination Committee (SBCC).

District Level Committee (DLC).

These bodies perform different functions concerning research supervision, biosafety evaluation, environmental release and monitoring.

3. Food Safety and Standards Act, 2006

The Act establishes FSSAI as India's principal food safety regulator.

Section 16 assigns FSSAI responsibilities relating to food standards and safety regulation. Section 19 restricts the use of food additives to those permitted under applicable regulations.

The Act also provides mechanisms for regulating food manufacturing, storage, distribution, sale and import.

4. Food Safety and Standards (Approval for Non-Specified Food and Food Ingredients) Regulations, 2017

These Regulations provide an approval mechanism for food products and ingredients that are not covered by existing prescribed standards.

Where a genetically modified food or ingredient falls within the non-specified food framework, prior approval may be necessary. Applicants may need to submit scientific evidence concerning composition, manufacturing methods and safety.

5. Food Safety and Standards (Labelling and Display) Regulations, 2020

These Regulations establish food-labelling requirements, including declarations concerning ingredients, allergens and nutritional information.

Applicable GM food labelling requirements must also be considered alongside relevant government notifications and directions.

Major components of food safety assessment

1. Toxicological assessment

Toxicological assessment examines whether genetic modification introduces substances that may cause harmful effects.

Researchers examine newly expressed proteins, metabolites and other relevant components. Depending on the characteristics of the product, laboratory studies and additional toxicological evidence may be required.

2. Allergenicity assessment

Genetic modification may introduce proteins that require evaluation for potential allergenic properties.

The assessment may consider:

Similarity between newly expressed proteins and known allergens.

Protein stability during digestion.

Existing information about the source organism.

Relevant laboratory and clinical evidence, where available.

The objective is to identify whether the modified food presents an increased allergy risk.

3. Nutritional assessment

GM foods are compared with suitable conventional counterparts to identify changes in nutritional composition.

The assessment may examine protein, carbohydrates, fats, vitamins, minerals and other relevant components.

A significant nutritional difference does not automatically establish that a product is unsafe, but it may require further evaluation.

4. Molecular characterisation

This assessment examines the genetic modification introduced into the organism.

It may include analysis of the inserted genetic material, its location, stability and expression. Researchers also examine relevant unintended genetic or compositional changes.

5. Environmental risk assessment

Although food safety assessment primarily concerns human and animal consumption, environmental risk assessment is also important for GM crops.

It may examine gene flow, effects on non-target organisms, biodiversity and the development of resistant pests or weeds.

6. Post-approval monitoring

Where required by regulatory authorities, monitoring may continue after approval. It can help identify unexpected effects, verify compliance with approval conditions and support further scientific assessment.

Role of international organisations

International organisations provide scientific principles and guidance for assessing genetically modified foods.

Codex Alimentarius Commission: Its guidelines establish principles for the safety assessment of foods derived from recombinant-DNA plants and microorganisms.

World Health Organization (WHO): WHO provides scientific information concerning the health implications of genetically modified foods and food safety assessment.

Food and Agriculture Organization (FAO): FAO supports international cooperation concerning agricultural biotechnology, food safety and sustainable food production.

These international guidelines assist regulatory authorities but do not automatically replace India's domestic approval requirements.

Important case laws

There are limited Indian judicial decisions directly determining the food safety of genetically modified foods. However, the following cases establish important principles relevant to their regulation.

1. Aruna Rodrigues v. Union of India (2012 onwards)

These proceedings before the Supreme Court raised concerns regarding the biosafety of genetically modified crops, particularly field trials, environmental risks and regulatory transparency.

The litigation highlighted the importance of independent scientific assessment, proper monitoring and public accountability in decisions concerning genetically modified organisms.

2. Gene Campaign v. Union of India (2010)

The Delhi High Court considered issues concerning the regulatory framework for genetically modified crops and biosafety oversight.

The proceedings highlighted the importance of scientific evaluation, regulatory safeguards and compliance with environmental requirements before permitting activities involving genetically engineered crops.

3. A.P. Pollution Control Board v. Prof. M.V. Nayudu (1999)

The Supreme Court emphasised the importance of scientific expertise in environmental decision-making where complex technical questions are involved.

This principle is relevant to GM food safety because toxicity, allergenicity and nutritional assessments require specialised scientific knowledge.

4. Vellore Citizens Welfare Forum v. Union of India (1996)

The Supreme Court recognised the precautionary principle as part of Indian environmental law.

This principle supports preventive scientific evaluation where there is uncertainty concerning potential environmental or health risks associated with biotechnology.

5. Research Foundation for Science, Technology and Natural Resource Policy v. Union of India (2005)

The Supreme Court considered environmental risks associated with hazardous waste and emphasised effective regulatory supervision.

Although not directly concerned with GM foods, its principles support careful risk assessment and institutional monitoring of technologies that may create environmental hazards.

Challenges in GM food safety assessment

Several challenges affect the assessment and regulation of genetically modified foods.

Scientific uncertainty: Long-term effects may require continuing research and monitoring.

Allergenicity concerns: Newly expressed proteins may require specialised evaluation.

Regulatory coordination: Environmental and food safety authorities may have different responsibilities.

Limited testing capacity: Advanced molecular and toxicological testing requires specialised facilities.

Consumer awareness: Public understanding of genetic modification and food labelling may be limited.

International differences: Countries may apply different approval procedures and safety standards.

Recommendations for strengthening food safety regulation

India should strengthen scientific capacity and regulatory coordination for genetically modified food assessment.

Important measures include:

Establishing transparent and standardised safety assessment procedures.

Strengthening independent toxicological and allergenicity testing.

Improving coordination between FSSAI, GEAC and biotechnology research authorities.

Maintaining accessible records of regulatory assessments.

Developing scientifically appropriate post-approval monitoring systems.

Strengthening laboratory infrastructure and technical expertise.

Ensuring accurate consumer information through appropriate labelling.

Conclusion

Food safety assessment of genetically modified foods is essential for protecting public health while allowing responsible agricultural innovation. India's regulatory framework combines the Environment (Protection) Act, 1986, the Rules, 1989, and the Food Safety and Standards Act, 2006. Scientific evaluation of toxicity, allergenicity, nutritional composition and molecular characteristics forms the foundation of this process. Judicial proceedings concerning GM crops have reinforced the importance of precaution, scientific transparency and regulatory accountability. A coordinated and evidence-based approval system is necessary to ensure that genetically modified foods meet appropriate safety standards before reaching consumers.