A High-Leverage Bet: $10k to Remove the Biggest Bottleneck in Wheat Flour Fortification

By Tony Senanayake @ 2025-11-18T13:48 (+10)

TL;DR

Anaemia is a massive public health issue

Fortify Health is on a mission to reduce iron-deficiency anaemia (IDA) in India. We do this by making it hassle-free to fortify wheat flour. Last month (October 2025) we reached more than 11 million beneficiaries and estimated that we averted 2,928 years of life with anaemia as a result. Over the past year we estimate that we have averted 25,943 years of life with anaemia (see BOTEC, tab 4)

IDA is a major public health and economic issue in India: 67.1% of children between 6-59 months of age and 52.2% of pregnant women in India are anaemic (NFHS-5), and both of these figures have increased over the past 5 years (NFHS-4). In the 16 states where Fortify Health currently operates, we estimate that ~459 million people suffer from anaemia.[1]

Anaemia has a substantial impact on an individual’s quality of life, and particularly affects women and children. Anaemia has been shown to cause impaired physical growth and cognitive development. Women with severe anaemia have double the risk of dying during or shortly after childbirth and women with anaemia are more likely to give birth to infants with low birth weights, who have increased risk of disease and death (M. Young, 2018). 

Fortification is a highly cost-effective intervention

Iron-deficiency anaemia undermines India’s human capital. It impairs cognitive development in children, increases maternal risks, reduces productivity, and perpetuates cycles of poor health and poverty. India’s national policy think tank, NITI Aayog, estimates IDA alone costs the country 1.18% of GDP annually, or $25 billion USD.[2] Wheat flour fortification is a proven response:

India has already led the way on salt iodisation and rice fortification, and wheat flour fortification is quickly gaining traction. The Government of India and several states, including Himachal Pradesh and Ladakh, have begun fortifying through social safety net programs, while Fortify Health works with ~220 industrial millers nationwide—about 10% of the sector (see our realtime dashboard here). We also support governments in Gujarat, Punjab, Uttar Pradesh, Rajasthan, Maharashtra, and Madhya Pradesh. With growing state interest, wheat flour fortification is poised to scale, but its success depends on assured quality.

After iterating our fortification programme over the past eight years, Fortify Health is now working to implement this solution at scale. We’ve grown from reaching 410,000 people per month in 2022 to over 11 million in October 2025.[3] At just $0.22 per person per year,[4] our programme is highly cost-effective. GiveWell’s cost-effectiveness analysis (CEA) found that our model is 19.2x as effective as cash transfers (weighted 10-year average).[5]

A key bottleneck: quality assurance 

Fortify Health aims to reach over 40 million people by 2030,[6] and develop the systems and processes necessary to support government and millers to independently adopt wheat flour fortification. A key process bottleneck currently limiting this scaling is the existing set of quality assurance and quality control (QA/QC) processes that ensure mills fortify wheat flour with the correct concentration of iron to address IDA.

Current QA/QC systems are cumbersome, costly, and reactive:

Fortify Health has demonstrated what rigorous QA/QC can look like in practice:

These methods work but are too resource-intensive to scale across thousands of mills nationwide. Without a technological leap, regulators will continue to struggle to assure quality at the scale India requires, and problems will continue to often go undetected until after under-fortified flour has already reached consumers. 

Anticipated impact of an AI-enabled system: Lower costs, improved quality

The solution is an AI-enabled, end-to-end QA/QC platform that equips regulators and millers with tools to identify risks early, diagnose causes, and implement corrective actions. It has three integrated components:

  1. Automated AI Spot Test Tool (Detection)
    • Use multimodal computer vision pipelines and deep learning architecture to analyse flour samples for added iron content. Employs MobileNextV2 convolutional neural networks trained on both annotated field and synthetic datasets to distinguish iron concentration patterns invisible to the naked eye. Images of the iron spot tests in a petri dish are automatically segmented, followed by a two-stage inference pipeline. and a Bayesian calibration layer to harmonize predictions across different flour types, iron salt variants and heterogeneous lighting conditions
    • Provide near-instant real-time inference on smartphones or edge devices, low-cost (<₹10 ([$0.11] /test), with accuracy benchmarked against reference lab assays.
    • A minimum viable product (MVP) has already been developed with 600 iron spot test images, increasing the speed and scale of testing to <2 minutes per sample and >1000 tests per month.
  2. Predictive Risk Model (Prediction)
    • Build a unified data pipeline by integrating historical QA/QC data, mill operational metadata, equipment details (e.g. sensor logs), and compliance history. Uses an ensemble machine learning stack to detect temporal patterns in mill operations.
    • Predict likelihood of lapses and anomaly detection (e.g. gradient boosting, random forests and temporal risk scoring with time-series forecasting), enabling quality control officers and regulators to adopt risk-based inspections (prioritising mills with higher non-compliance probabilities). A risk stratification algorithm with explainable AI can be employed so that regulators can understand which factors (e..g. equipment age, mill downtime, past non-compliance) drive elevated risks.
    • Continuously improve through online learning pipelines, refining predictions as new test and inspection data are ingested. Cross-validation ensures generalization across geographies and mill scales, while a complete audit trail and bias detection module ensure regulatory integrity.
  3. Automated Troubleshooting & Action Tool (Prevention)
    • Integrate test results and risk data into a decision-support knowledge graph capturing semantic links between mill processes, QA protocols, and FSSAI standards.
    • Generate corrective and preventive actions (CAPA) using a rule-based reasoning engine combined with generative AI copilots (fine-tuned LLMs trained on operational manuals and case histories) for context-sensitive troubleshooting.
    • Provide step-by-step guidance for millers, tailored to specific mill equipment and process conditions, to resolve issues before distribution.
    • Enable simulation of corrective actions (e.g., parameter adjustments) before physical implementation, reducing downtime and product wastage.
    • Offers millers and food inspectors a mobile-first, multilingual interface with Whatsapp integration for field usability or conversational troubleshooting.
       

Together, these tools transform QA/QC from fragmented and reactive into predictive, actionable, and preventive — ensuring that fortified wheat flour consistently meets standards at scale.

In 2025, we have taken the first step towards developing this system by piloting an AI-driven iron spot test that can determine the iron content in a sample of fortified flour far more accurately and quickly than existing tools. We anticipate the full end-to-end QA/QC platform can be developed in 12 months, and rolled out across our partner mills serving > 11 million people soon after. Based on a BOTEC calculation, we anticipate that this AI-enabled QA/QC platform will enable cheap, large scale fortification by:

Impact throughout the fortification sector

In addition to the impact we expect this upgraded QA/QC platform would have on Fortify Health’s programming, we anticipate that such a system would also generate impact for other stakeholders throughout the fortification sector, including:

Major Uncertainties

We have a number of major uncertainties about this project. These include:

Funding Gap and Marginal Funding

Our funding gap to fully develop and implement this AI-enabled QA/QC platform is $60,000 USD. This includes the following costs:

 

Within this $60,000 USD budget, marginal funding of $10,000 USD will help us launch the next phase of this project–building a predictive risk model–while we continue fundraising for the remaining cost.

Contributions over $60,000 USD would be used to support ongoing scaling of our open market intervention (and we would also be open to recommending alternative funding opportunities within the Global Health space that may have greater marginal return on investment). 

We would also happily accept pro-bono or in-kind support from individuals or organisations that may have the skill set to deliver this project.

Donation link: https://give.cornerstone.cc/fortifyhealth

Thanks to Elizabeth Robinson (Chief of Staff) and Dr Prasad Bogam (Director of Monitoring, Evaluation and Research) for their support in preparing this post. 

  1. ^

    Calculated based on anaemia prevalence data from NFHS-5.

  2. ^

    Nutrition International, Cost of Inaction Tool, accessed 16 November 2025.

  3. ^

    Based on figures from August 2022 and August 2025. See our external dashboard to view other time periods or see how these numbers are calculated.

  4. ^

    Based on a cost-effectiveness analysis of our open market intervention. Costs include a proportion of the direct costs of running the open market intervention as well as a proportion of indirect costs of running the organisation. The methodology behind beneficiary calculations can be read here.

  5. ^

    Note that the cost per beneficiary figures in the model have been updated from the original GiveWell model. The figures in orange are based on actual figures from the past three years and the figures in yellow have been updated based on forecasts. Please note that these figures have not been verified by GiveWell.

  6. ^

    Based on a detailed exercise projecting future mill onboarding, production volumes, and beneficiary reach. We used field data and operational insight, and applied conservative assumptions.


Jason @ 2025-11-19T01:44 (+6)

Could you explain how and why this is a marginal funding request -- something that is on the bubble of being funded or not, such that you anticipate that receiving $10,000 (or not) would be the difference between funding this work and not? For example, is your other funding heavily earmarked, or do you believe that the items in your already-committed-to-fund-this budget have even higher cost-effectiveness?

Tony Senanayake @ 2025-11-19T11:11 (+3)

Thanks for the very reasonable question. In short, our current budget for the next financial year (through to June 2026) is currently earmarked to existing programmatic obligations. Additional marginal funding would allow us to bring in support to start building out this solution and we would leverage existing team members for the on-ground validation exercises. 

Zachary Brown🔸 @ 2025-11-19T04:38 (+5)

Sorry for a quick comment: Is there any evidence that computer vision systems can reliably do the QA step? what is the accuracy and precision like compared to traditional testing? 

Tony Senanayake @ 2025-11-19T11:10 (+1)

Thank you for the question — we recently presented our validation results at the Nutrition Society of India Conference, and you can view the full slide deck here: https://docs.google.com/presentation/d/1ReSC7R1HmV9_i61nu12YX5rOV56S6hGY_B3etFP5p3E/edit?usp=sharing. Our computer vision model, trained on 837 iron spot test images, currently achieves ~84% accuracy on test data and substantially reduces the subjectivity seen in manual qualitative testing. While it doesn’t replace quantitative lab methods like ICP-MS, it provides a low-cost, reliable, mill-level QA tool to flag potential under- or over-fortification more consistently.