Op-ed: Double-fortified salt is no quick fix for India's many-sided anaemia problem
In one line: A Hindu lead article argues that adding iron to salt cannot solve anaemia, which has many causes, and that DFS should be piloted carefully before any national rollout.
Published 5 November 2026. Written by Pratidin from the reports linked at the end; every fact checked by a separate review before publishing. How we work
A lead article in The Hindu on 5 November 2026, titled "Anaemia burden: iron alone is no solution", questions proposals to scale up double-fortified salt (DFS), which carries both iodine and iron, as a national answer to anaemia. Anaemia is a shortage of red blood cells or haemoglobin that reduces the oxygen reaching the body's tissues. The burden is not in doubt: the fifth National Family Health Survey (NFHS-5, 2019-21) found 67.1% of children aged 6 to 59 months, 57% of women aged 15 to 49 and 52.2% of pregnant women anaemic, all higher than in NFHS-4 (2015-16), when the figure for young children was 58.6%. The article accepts the case made for DFS: salt is eaten daily by almost everyone, needs no change in behaviour, and iodised salt has been a public health success.
The article then sets out its objections. First, DFS needs steady salt intake, while Indians already eat roughly twice the WHO's recommended 5 grams a day and the national plan on non-communicable diseases aims to cut salt intake by 30%. Second, the groups who need iron most, young children and women, eat the least salt. Third, DFS supplies non-haem (plant-type) iron, whose absorption is blocked by phytates in cereals, polyphenols in tea and calcium, and by the hormone hepcidin during infection. Fourth, excess iron cannot be excreted easily: the article cites a 2006 trial in Pemba, Tanzania and a 2015 study in Kenya linking iron to harm in children, and warns of iron overload in people with thalassaemia or sickle cell disease. Fifth, children may already get iron through fortified rice, PM POSHAN meals, ICDS and iron-folic acid tablets, and no one tracks their total intake.
The deeper argument is that anaemia has many causes. The article notes that the Comprehensive National Nutrition Survey (2016-18) found iron deficiency explained only part of anaemia among children and adolescents; folate and vitamin B12 deficiency, infections, worms, malaria, poor sanitation and inherited blood disorders also matter. It says the revised Anaemia Mukt Bharat approach is broader but still leans on iron tablets. It points to Peru, which tracked anaemia by name, and Vietnam, which combined weekly iron supplements, deworming, sanitation and a better-absorbed iron compound (NaFeEDTA) in fish sauce. Its proposal is monitored district-level DFS pilots that measure ferritin, inflammation and harm before any national rollout. Supporters of DFS argue that its iron dose is modest and its cost low; the article's reply is that evidence of safety should come first.
Prelims facts
- NFHS-5 (2019-21) found 67.1% of children aged 6 to 59 months and 57% of women aged 15 to 49 anaemic, up from 58.6% and 53.1% in NFHS-4.
- Double-fortified salt carries both iodine and iron; the op-ed argues it should be piloted with monitoring before any national rollout.
- Non-haem iron absorption is reduced by phytates, polyphenols (tea), calcium and by hepcidin during infection; vitamin C improves it.
- People with thalassaemia or sickle cell disease are at risk of iron overload, which complicates universal iron fortification.
- Anaemia Mukt Bharat, launched in 2018, followed a 6x6x6 strategy of beneficiary groups, interventions and institutional mechanisms.
Quick recall
- What is double-fortified salt?
- Common salt fortified with both iodine and iron.
- NFHS-5 anaemia among children aged 6 to 59 months?
- 67.1% (NFHS-4: 58.6%).
- NFHS-5 anaemia among women aged 15 to 49?
- 57% (NFHS-4: 53.1%).
- WHO recommended daily salt limit cited in the op-ed?
- 5 grams a day; Indians eat roughly twice that.
- What does hepcidin do?
- It is a hormone that blocks iron absorption and release during infection and inflammation.
- Which survey found iron deficiency explains only part of anaemia in children and adolescents?
- The Comprehensive National Nutrition Survey (CNNS), 2016-18.
- Which iron compound did Vietnam use in fortified fish sauce?
- NaFeEDTA (sodium iron EDTA), a better-absorbed form.
- When was Anaemia Mukt Bharat launched and what was its framework?
- 2018; the 6x6x6 strategy (six groups, six interventions, six institutional mechanisms).
Prelims practice question
Consider the following statements:
1. Double-fortified salt is fortified with iodine and iron.
2. Iron from plant foods (non-haem iron) is absorbed better when eaten with tea.
3. Hepcidin, a hormone, reduces iron absorption during infection and inflammation.
Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Show answer
Answer: (c) 1 and 3 only. Statement 1 is correct. Statement 2 is wrong: polyphenols in tea inhibit non-haem iron absorption; vitamin C enhances it. Statement 3 is correct: hepcidin blocks iron uptake during infection, one reason fortification works least where infection is common.
Use this in UPSC Mains: previous-year questions
Recurring theme: Malnutrition and public health: designing nutrition interventions that match the causes
- How to use this
Use anaemia data and the op-ed's multi-cause strategy to show how malnutrition weakens human capital and what steps break the cycle.
- NFHS-5 found 67.1% of children aged 6 to 59 months and 57% of women anaemic, both up from NFHS-4.
- CNNS (2016-18) found iron deficiency explains only part of anaemia, so deworming, sanitation and B12 and folate matter.
- Peru's name-based tracking and Vietnam's deworming plus NaFeEDTA-fortified fish sauce show integrated approaches work.
- How to use this
Cite rising anaemia as evidence that input-heavy nutrition schemes have not delivered outcomes, and suggest cause-based measures.
- Anaemia among children aged 6 to 59 months rose from 58.6% (NFHS-4) to 67.1% (NFHS-5).
- Iron reaches children through fortified rice, PM POSHAN, ICDS and IFA tablets, but total intake is not tracked.
Grassroots public health reach (testing, deworming, sanitation) is the op-ed's alternative to a single market vehicle.
Mains practice question
Anaemia in India is a multi-causal problem that a single nutrient-centred intervention cannot solve. Critically examine this statement in the context of proposals to scale up double-fortified salt. (250 words)
Model answer
NFHS-5 (2019-21) found 67.1% of children aged 6 to 59 months and 57% of women anaemic, worse than NFHS-4 despite years of iron programmes.
The case for double-fortified salt (DFS)
- Salt reaches almost every household daily and needs no behaviour change; iodised salt is a proven model.
- Low cost, and iron doses per serving are modest, as supporters argue.
Why a single nutrient may fail
- Many causes: the CNNS (2016-18) found iron deficiency explains only part of anaemia; folate and B12 deficiency, infections, worms, malaria, poor sanitation and haemoglobinopathies also matter.
- Absorption: non-haem iron is blocked by phytates, tea polyphenols, calcium and hepcidin during infection.
- Targeting: children and women eat the least salt, men the most.
- Policy clash: Indians eat about twice WHO's 5 g limit; the NCD plan aims for a 30% cut in salt intake.
- Safety: excess iron is hard to excrete; trials in Pemba (2006) and Kenya (2015) linked iron to harm; thalassaemia and sickle cell patients risk overload.
- Stacking: fortified rice, PM POSHAN, ICDS and IFA tablets may already supply iron, with no tracking of total intake.
A comprehensive strategy
- Diagnose causes: test ferritin, B12 and inflammation, not only haemoglobin.
- Pilot DFS district-wise with harm monitoring, as the op-ed proposes.
- Combine deworming, WASH, malaria control and diverse diets under Anaemia Mukt Bharat.
- Learn from Peru (name-based tracking) and Vietnam (deworming, sanitation, NaFeEDTA-fortified fish sauce).
Anaemia needs a public health package, not just an additive in the salt shaker.
The basics
Why this matters
Anaemia is India's most widespread nutrition problem, and it has worsened between the last two national surveys. It lowers learning, work capacity and safe childbirth. The DFS debate is a test case for a general question in public policy: when does a cheap, universal fix help, and when does it hide a complex problem?
The scale of the problem
Why iron is not the whole story
Haemoglobin needs iron, but also folate and vitamin B12, and red cells can be destroyed or lost through malaria, hookworm and inherited disorders. This is why the Causes of anaemia matter for choosing a remedy.
- 1Iron deficiencyToo little iron in diet or poor absorption
- 2Folate and B12 deficiencyRed cells cannot form properly
- 3Infections and wormsMalaria and hookworm destroy cells or cause blood loss; inflammation blocks iron use
- 4Inherited blood disordersThalassaemia and sickle cell disease
- 5Poor sanitation and dietsRepeated infection and low dietary diversity
How fortification works
Food fortification adds micronutrients to staple foods. Iodised salt succeeded because almost everyone eats salt and iodine needs are small. Iron is harder: the form matters, absorption varies with the meal, and excess is not easily excreted. Iron absorption and hepcidin explains why.
- Salt is eaten daily by almost everyone
- No change in eating habits needed
- Cheap; builds on iodised salt success
- Conflicts with goal of 30% less salt
- Least salt eaten by those who need iron most
- Iron overload risk in thalassaemia and sickle cell disease
- Iron already stacked through rice, meals and tablets
The policy frame
Anaemia Mukt Bharat is the government's strategy, launched in 2018. The op-ed argues its revised form still leans on iron tablets, and that diagnosis, deworming, sanitation and diverse diets must carry more weight.
Go deeper
Why it matters for UPSC
Anaemia links GS2 health and hunger with GS3 food processing and public distribution. Prelims can test NFHS figures, nutrition science and Anaemia Mukt Bharat. Mains often asks about malnutrition, human capital and why schemes underperform.
The core idea
Food fortification works best when one missing nutrient causes the problem, as with iodine. But the Causes of anaemia are many, and iron behaves differently from iodine: Iron absorption and hepcidin shows why a meal, an infection or a blood disorder changes how much iron the body takes up or stores. The op-ed asks Anaemia Mukt Bharat to put diagnosis, deworming, sanitation and diverse diets alongside iron.
Numbers and dates to remember
- NFHS-5 (2019-21): children 6 to 59 months 67.1%; women 15 to 49 57%; pregnant women 52.2%; men 25%.
- NFHS-4 (2015-16): children 58.6%; women 53.1%.
- WHO salt limit 5 g a day; NCD plan target 30% cut in salt intake.
- CNNS 2016-18; Pemba trial 2006; Kenya study 2015.
- Anaemia Mukt Bharat launched 2018 (6x6x6).
Where to go next
- Causes of anaemia: why iron alone cannot fix it.
- Food fortification: how adding nutrients to staples works, and its limits.
- Iron absorption and hepcidin: the biology behind the safety debate.
- Anaemia Mukt Bharat: the government's strategy.
Go deeper: universal fixes versus targeted care
For universal fortification. Universal vehicles avoid the hardest part of public health: getting people to change behaviour. Iodised salt is the success story, and many experts see DFS as a cheap extension. Supporters say the iron per serving is small, and that waiting for perfect evidence costs lives when anaemia is rising. See Food fortification for the logic.
Against, as the op-ed argues. First, the Causes of anaemia differ by region and group; where infection or B12 deficiency drives anaemia, more iron does little. Second, the biology in Iron absorption and hepcidin means iron given during infection is poorly absorbed, and studies in Pemba and Kenya linked iron to harm in children. Third, India has several overlapping iron channels: fortified rice in the PDS, PM POSHAN meals, ICDS and iron-folic acid tablets. Without tracking, cumulative intake is unknown. Fourth, salt reduction is itself a health goal, since high salt raises blood pressure.
International lessons. Peru cut child anaemia with name-based tracking and accountability. Vietnam combined weekly iron supplements, deworming, sanitation and a better-absorbed iron form in fish sauce. Neither relied on a single food.
Where this leaves policy. The op-ed's middle path is monitored district pilots of DFS that measure ferritin, inflammation and adverse effects, alongside a stronger Anaemia Mukt Bharat that tests causes, not just haemoglobin, and invests in deworming, water and sanitation.
Causes of anaemia
Why the remedy depends on the cause.
In one line: Anaemia means too little haemoglobin; it can come from poor iron intake, other vitamin deficiencies, infections, blood loss or inherited disorders.
The main causes
Iron deficiency is the most common single cause. But red blood cells also need folate and vitamin B12. Malaria destroys red cells; hookworm causes blood loss in the gut; chronic inflammation locks iron away. Inherited haemoglobinopathies such as thalassaemia and sickle cell disease produce faulty haemoglobin. Poor sanitation, repeated infections, early pregnancy and low dietary diversity add to the burden.
Why it is in the news
The op-ed cites the Comprehensive National Nutrition Survey (2016-18), which found iron deficiency explained only part of anaemia among Indian children and adolescents. If causes vary, a single iron vehicle cannot fix all cases.
Where to go next
Food fortification
How adding nutrients to staple foods works, and its limits.
In one line: Fortification adds vitamins or minerals to widely eaten foods so that a population's intake rises without any change in diet.
How it works
A good vehicle is eaten by most people in steady amounts: salt, rice, wheat flour, edible oil or milk. The added nutrient must be stable, safe and absorbed. Iodised salt is the classic success. In India, fortified rice is distributed through government schemes, and double-fortified salt adds iron to iodised salt.
Limits
Fortification helps when the problem is a single missing nutrient that the vehicle can deliver in the right dose. It works less well when intake of the vehicle varies across groups, when absorption is blocked, or when some people can be harmed by extra amounts, as with iron in thalassaemia.
Where to go next
Iron absorption and hepcidin
The biology behind the safety and effectiveness debate.
In one line: The body absorbs only a fraction of dietary iron, controls uptake through the hormone hepcidin, and has no efficient way to excrete excess iron.
Haem and non-haem iron
Haem iron, from meat and fish, is absorbed relatively well. Non-haem iron, from plant foods and fortificants, is absorbed less, and phytates in cereals, polyphenols in tea and coffee, and calcium reduce it further. Vitamin C improves absorption.
Hepcidin
The liver releases hepcidin when iron stores are high or when there is infection or inflammation. Hepcidin blocks iron entry from the gut and traps iron in storage cells. So during infection, extra iron is poorly used. Because the body cannot easily excrete iron, excess builds up, which is dangerous for people with thalassaemia who already absorb or receive too much.
Where to go next
Anaemia Mukt Bharat
The government's main anaemia strategy and the op-ed's critique of it.
In one line: Anaemia Mukt Bharat is the Union government's anaemia strategy, launched in 2018 with a 6x6x6 framework.
The design
The strategy targets six beneficiary groups through six interventions supported by six institutional mechanisms. Interventions include prophylactic iron and folic acid supplementation, deworming, behaviour change communication, testing and treatment, fortified foods in government programmes, and addressing non-nutritional causes such as malaria and haemoglobinopathies in endemic areas. It aimed to cut anaemia prevalence by 3 percentage points a year.
Why it is in the news
NFHS-5 showed anaemia rising, not falling. The op-ed says the revised strategy is broader but still relies heavily on iron tablets, and urges routine testing for causes, more deworming and sanitation, and tracking health outcomes rather than tablets distributed.
Where to go next
Take the 5 November 2026 quiz: 30 Prelims-style questions with answers