Biofortification of crops

01Overview and value chain

Markers: [EC: Farm to Fork Strategy | OECD: Agricultural biotechnology | Regulator: USDA-APHIS (USA), EPA (USA), EFSA (EU)]

The biofortification of crops represents a sustainable, seed-based strategy to tackle global micronutrient deficiencies—often referred to as “hidden hunger.” Rather than fortifying food at the processing stage, which requires ongoing industrial infrastructure, biofortification embeds the nutritional enhancement directly into the plant’s genetics. Utilizing traditional breeding, agronomic practices, and advanced gene editing (e.g., CRISPR), developers can increase the concentrations of provitamin A, iron, and zinc in staple crops like rice, wheat, maize, and cassava. By 2026, the global biofortification market is robust and expanding, with cereals and grains making up nearly 39 percent of the sector. Because farmers can save and replant many of these seeds year after year without losing the nutritional traits, a single initial investment can yield decades of improved public health outcomes while simultaneously opening new premium markets for nutritionally dense ingredients.

The key directions of biofortification of crops are:

1. Conventional & Marker-Assisted Breeding: Crossing elite high-yielding varieties with wild or landrace relatives that naturally possess high micronutrient concentrations.
2. Transgenic & Gene-Edited Fortification: Utilizing precise molecular tools (like CRISPR-Cas9) to upregulate the metabolic pathways responsible for nutrient synthesis (e.g., anthocyanins in tomatoes, beta-carotene in rice).
3. Agronomic Biofortification: Applying specialized micronutrient-rich fertilizers (often via foliar sprays or nanotechnology) that crops absorb and deposit directly into the edible grain or tuber.
4. Supply Chain & Food Integration: Formulating biofortified harvests into commercial consumer packaged goods (CPG), allowing food manufacturers to make “naturally nutrient-dense” claims.

Sectoral value chain

[Trait Discovery] ──> [Breeding & Editing] ──> [Seed Multiplication] ──> [Crop Cultivation]
                                  │
                          (Nutrient Upregulation)
                                  │
                                  ▼
[Public Health Impact] <─── [Food Processing] <─────┘

Value chain levels

Cross-cutting technologies of the sector:

• High-Throughput Phenotyping: Using X-ray fluorescence (XRF) to rapidly measure the exact zinc and iron content of thousands of seeds non-destructively.
• CRISPR-Cas9: Precise editing of promoter regions to force a plant to accumulate specific antioxidants or vitamins in the edible tissues.
• Nanotechnology Delivery: Utilizing zinc or selenium nanoparticles in foliar sprays to drastically improve the plant’s absorption efficiency.

02US

The United States drives the technological and commercial frontier of biofortification, leveraging advanced gene editing and strong consumer demand for functional, health-oriented foods.

Gene Editing, Functional Foods, Global Funding

• HarvestPlus: Headquartered in the US, this CGIAR program remains the global orchestrator of biofortified seed development and distribution, reaching millions of farming households worldwide.
• Biotech Innovators: Companies like Cibus utilize advanced precision breeding and CRISPR to develop crops with enhanced nutritional profiles specifically for the North American food system.
• Philanthropic Support: Major US-based entities (like the Bill & Melinda Gates Foundation) provide the primary funding engine for scaling biofortification in developing nations.

03CN

China recognizes biofortification as a critical pillar of its national food security and public health strategy, rapidly scaling up research in staple grains to address population-wide nutritional gaps.

State Research, Iron/Zinc Rice, Large-scale Adoption

• CAAS: The Chinese Academy of Agricultural Sciences leads massive domestic programs to breed iron- and zinc-enriched rice and wheat, tailored for the Chinese diet.
• Precision Breeding Grants: Substantial state funding is allocated toward the genetic mapping of nutrient uptake pathways, allowing rapid introgression into high-yielding hybrid rice.
• Agronomic Mandates: Integrating agronomic biofortification (micronutrient sprays) into standardized cooperative farming practices across millions of hectares.

04EU

The European Union’s approach to biofortification is shaped by a highly precautionary regulatory stance on genetic engineering, driving innovation toward conventional breeding, agronomics, and strictly controlled GM approvals.

UK Biofortification Hub, Non-GMO Focus, Farm to Fork

• Biofortification Hubs: In the UK, dedicated hubs bridge academia and industry, fostering innovations like Norfolk Plant Sciences’ highly successful anthocyanin-rich purple tomato.
• Agri-Chemical Giants: Companies like Syngenta and BASF invest heavily in integrating agronomic biofortification products (micronutrient treatments) into their broader sustainable farming portfolios.
• Regulatory Shifts: While historically opposed to transgenics, recent EU debates on New Genomic Techniques (NGTs) are slowly opening pathways for CRISPR-biofortified crops to enter the European market.

05Leading companies and research institutes

06Tech stack and innovations

Biofortification relies on the convergence of precision analytical tools and molecular genetics to accurately dial up nutrient levels without disrupting the plant’s core metabolism.

1. CRISPR & Promoter Editing:
   • Instead of inserting foreign genes, scientists use CRISPR to edit the promoter regions of native genes, turning “up” the plant’s natural production of vitamins.
   • Deactivating anti-nutritional factors (like phytic acid) that normally bind to iron and zinc in the gut, preventing human absorption.
2. X-Ray Fluorescence (XRF):
   • Utilizing benchtop and handheld XRF spectrometers to quantify mineral concentrations in seeds in seconds, vastly accelerating the breeding cycle.
3. Agronomic Nanotechnology:
   • Engineering nano-scale zinc oxide fertilizers that penetrate leaf cuticles more efficiently, boosting grain zinc levels right before harvest.

07Value chains and production pipelines

Industrial pipeline of biofortified seed commercialization (ISO/IEC standards)

┌───────────────────────────┐      ┌───────────────────────────┐
│ 1. Germplasm Evaluation   │ ───> │ 2. Molecular Breeding     │
└───────────────────────────┘      └───────────────────────────┘
                                                 │
                                                 ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 4. Nutritional Profiling  │ <─── │ 3. Field Phenotyping      │
└───────────────────────────┘      └───────────────────────────┘
              │
              ▼
┌───────────────────────────┐      ┌───────────────────────────┐
│ 5. Seed Registration      │ ───> │ 6. Farmer Deployment      │
└───────────────────────────┘      └───────────────────────────┘

Stage 1: Germplasm Evaluation

Researchers screen global seed vaults for wild or traditional varieties containing unusually high levels of target nutrients (e.g., zinc in wheat).

Stage 2: Molecular Breeding

Using Marker-Assisted Selection (MAS) or direct gene editing to transfer the high-nutrient trait into modern, high-yielding crop varieties adapted to specific local climates.

Stage 3: Field Phenotyping

Growing the cross-bred lines in field conditions to ensure that the increased nutrient accumulation does not negatively impact the crop’s yield, disease resistance, or drought tolerance.

Stage 4: Nutritional Profiling

Harvested grains are analyzed using liquid chromatography and XRF to ensure the target micronutrient is present in high enough concentrations to provide a physiological benefit to humans.

Stage 5: Seed Registration

The stabilized biofortified variety undergoes national regulatory review. For transgenic crops (like Golden Rice), this involves rigorous multi-year safety and environmental assessments.

Stage 6: Farmer Deployment

Approved seeds are multiplied by agricultural extension services and sold or distributed to farmers. The resulting nutrient-dense harvest integrates directly into local food systems.