Anaemia in India: Moving Beyond Iron Deficiency Towards a Holistic Public Health Approach

Context

Anaemia continues to be a major public health concern in India, disproportionately affecting women, children and adolescent girls across rural and urban areas. Its persistence highlights the limitations of treating anaemia merely as an iron-deficiency problem and underscores the need for a comprehensive approach addressing nutritional, infectious, genetic and socio-economic determinants.

What is Anaemia?

• Definition: Anaemia is a medical condition characterised by reduced haemoglobin concentration or an insufficient number of healthy red blood cells, limiting the oxygen-carrying capacity of blood.
• Beyond Iron Deficiency: Although inadequate iron intake is a major contributor, anaemia can also result from deficiencies of Vitamin B12, folic acid and Vitamin A, chronic infections, inflammation and inherited blood disorders.
• Public Health Significance: It can cause fatigue, reduced cognitive and physical performance, impaired childhood development, pregnancy complications and lower workforce productivity.

What are the Multi-dimensional Causes of Anaemia?

1. Nutritional Deficiencies

• Insufficient intake of iron-rich foods is a major contributing factor.
• Vitamin B12 and folate are essential for the formation and maturation of red blood cells.
• Low consumption of animal-source foods can increase the risk of Vitamin B12 deficiency.
• Vitamin C deficiency can further aggravate iron deficiency by reducing the absorption of non-haem iron from plant-based foods.

2. Infections and Chronic Inflammation

• Intestinal worms, malaria and recurrent gastrointestinal infections can contribute to blood loss and reduced nutrient absorption.
• Chronic inflammation increases the production of hepcidin, a hormone that restricts intestinal iron absorption and prevents the effective utilisation of stored iron.
• Repeated infections can therefore sustain anaemia even when dietary iron intake is adequate.

3. Socio-economic and Environmental Factors

• Inadequate access to safe drinking water, sanitation and hygiene increases the incidence of diarrhoeal and parasitic infections.
• Poverty, food insecurity and limited dietary diversity restrict access to essential micronutrients.
• Early marriage, adolescent pregnancy, repeated pregnancies and gender-based nutritional inequalities increase women’s vulnerability.

4. Genetic and Inherited Disorders

• Conditions such as thalassemia and sickle cell disorders can cause chronic anaemia.
• These conditions are concentrated in certain population groups and geographical regions.
• Iron supplementation alone cannot correct genetically inherited causes of anaemia and may result in unnecessary iron accumulation in some patients.

Why is an Iron-Centric Approach Insufficient?

Dimension	Conventional Iron-Centric Approach	Holistic Multi-sectoral Approach
Intervention	Iron-Folic Acid (IFA) supplementation and iron fortification	Dietary diversity and multiple micronutrient interventions
Diagnosis	Primarily haemoglobin measurement	Assessment of iron stores, B12, inflammation and genetic disorders
Infection control	Limited integration with sanitation programmes	Deworming, malaria prevention and improved WASH facilities
Treatment	Generalised iron supplementation	Cause-specific diagnosis and treatment
Sustainability	Dependence on periodic supplementation	Long-term nutritional security and behavioural change

What are the Challenges Associated with Iron-Only Programmes?

• Risk of Unnecessary Supplementation: Providing iron to individuals without iron deficiency may cause gastrointestinal complications and, in certain circumstances, contribute to excessive iron accumulation.
• Inadequate Diagnostic Capacity: Haemoglobin testing identifies anaemia but cannot independently establish its underlying cause. Reliance on basic testing may overlook inflammatory conditions, Vitamin B12 deficiency and haemoglobin disorders.
• Poor Treatment Compliance: Nausea, constipation, abdominal discomfort and metallic taste associated with oral iron tablets discourage continued consumption, particularly among adolescent girls and pregnant women.
• Limited Attention to Root Causes: Supplementation alone cannot resolve persistent infections, poor sanitation, inadequate dietary diversity or inherited blood disorders.
• Implementation Gaps: Inconsistent availability of supplements, inadequate awareness, weak follow-up and gaps in healthcare delivery reduce programme effectiveness.

What are the Government Initiatives to Address Anaemia?

1. Anaemia Mukt Bharat (AMB)

• Introduced under the POSHAN Abhiyaan framework, it follows a 6×6×6 strategy involving six beneficiary groups, six interventions and six institutional mechanisms.
• Its interventions include iron-folic acid supplementation, periodic deworming, testing and treatment, behaviour change communication and management of non-nutritional causes.

2. POSHAN Abhiyaan

• Seeks to improve nutritional outcomes among children, adolescent girls, pregnant women and lactating mothers.
• Promotes nutrition awareness, dietary diversity, community participation and improved maternal and child healthcare.

3. National Deworming Day (NDD)

• Conducted biannually to administer Albendazole to eligible children and adolescents.
• Aims to reduce soil-transmitted helminth infections that can contribute to nutritional deficiencies and anaemia.

Way Forward

• Promote Dietary Diversification: Encourage the consumption of green leafy vegetables, millets, pulses, legumes, fruits, nuts and protein-rich foods. Combining plant-based iron sources with Vitamin C-rich foods can improve iron absorption.
• Strengthen Diagnostic Infrastructure: Equip Primary Health Centres with appropriate diagnostic facilities to assess iron status, Vitamin B12 deficiency, inflammation and inherited haemoglobin disorders.
• Integrate Nutrition with WASH: Coordinate anaemia-control programmes with safe drinking water, sanitation, hygiene promotion and infection-control initiatives.
• Improve Targeted Supplementation: Identify the underlying cause before initiating treatment and ensure that iron supplementation is provided according to clinical requirements.
• Strengthen Behavioural Change: Promote nutrition education among families, schools and communities to improve dietary practices and treatment adherence.
• Address Gender Inequalities: Improve access to healthcare for adolescent girls and women, prevent early marriage and pregnancy, and strengthen maternal nutrition services.
• Expand Genetic Screening: Strengthen screening and counselling for sickle cell disease and thalassemia in vulnerable populations.

Conclusion

Anaemia in India is not merely a nutritional deficiency but a complex public health challenge shaped by poverty, infections, gender inequalities, inadequate sanitation and genetic conditions. Therefore, achieving sustainable reductions requires a shift from an exclusively iron-supplementation-based model towards comprehensive diagnosis, diversified nutrition, infection control and stronger public health infrastructure. A multi-sectoral approach is essential to improve nutritional outcomes and strengthen India’s human development.

Source : The Hindu