Double-fortified salt could build on India’s near-universal iodisation network to tackle iron deficiency, but uneven distribution, quality concerns and limited awareness continue to constrain its impact.
India’s long battle with anaemia has a familiar pattern: public health ambition is strong, but one of the most practical tools for prevention remains underused. In an opinion piece in The Hindu, the authors argue that double-fortified salt, which contains both iodine and iron, could help close a stubborn nutrition gap that continues to affect more than half of Indian women and a large share of children. The case for doing so, they say, rests not only on public health need but also on the sheer reach of salt in everyday life.
The appeal of double-fortified salt is its simplicity. Salt is consumed by almost every household, regardless of income or geography, making it a rare food vehicle that can deliver nutrients at scale. The authors point out that India already has an extensive iodised salt platform, with around 95% of households using it, and say double-fortified salt can build on that existing system rather than creating a new one from scratch. They also note that the government already requires its use in school meals and early childhood nutrition programmes, even as wider adoption remains patchy.
Evidence from research backs up the argument, although not without caveats. A review cited in the article suggests double-fortified salt can reduce anaemia by as much as 21%, while studies in Bengaluru, Darjeeling and Punjab, together with implementation work in Uttar Pradesh, have found improvements in iron status and generally positive consumer acceptance when the product is made to proper standards. Separate modelling published in ScienceDirect estimated that a national rollout could produce a benefit-cost ratio of 4.2:1, largely because of gains in productivity and better health. At the same time, researchers at the National Bureau of Economic Research reported little impact in rural Bihar, underscoring that results depend heavily on quality, uptake and the broader delivery system.
That gap between promise and performance appears to be the main obstacle. Research on the value chain in India shows that the technical side of production is not the central problem; instead, weak penetration, uneven distribution and low awareness have limited reach in the states where the product has been introduced. Studies of the Uttar Pradesh programme reached similar conclusions, finding that implementation problems, product quality and consumer understanding all affected use. The authors of the The Hindu article argue that these are institutional failures rather than scientific ones, and that the Public Distribution System, which reaches roughly 800 million beneficiaries, remains a crucial but unevenly used channel for scale-up.
There is also a broader policy case for moving ahead carefully but decisively. The article says double-fortified salt should sit alongside screening, supplementation and dietary change under Anaemia Mukt Bharat, while remaining consistent with efforts to reduce sodium intake and to identify haemoglobin disorders such as thalassaemia and sickle cell disease. Studies also suggest the product may improve iodine status as well as iron status, strengthening its appeal as a two-in-one intervention. For the authors, the larger point is that India already helped normalise iodised salt as a public health success; expanding to double-fortified salt, they argue, could offer a similarly scalable model for other countries facing persistent micronutrient deficiencies.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
