Sustainable Development Goals: Implications for Public Nutrition

The Sustainable Development Goals are often viewed as a sweeping global blueprint for ending poverty and protecting the planet, but for anyone studying public nutrition, they read like a practical to-do list. Hunger, child stunting, maternal anaemia, contaminated drinking water, and weak primary healthcare are not isolated problems. They feed into one another, and the SDGs recognise this by tying nutrition outcomes to almost every dimension of human development. Understanding how these goals intersect with food systems and public health helps explain why nutrition is now treated as a cross-sectoral issue rather than a narrow medical one.

What the Sustainable Development Goals actually are 🔗

Adopted by all United Nations member states in 2015, the 2030 Agenda for Sustainable Development sets out 17 goals and 169 targets meant to guide global progress on poverty, inequality, climate change, peace, and prosperity. The goals are integrated by design, meaning progress on one usually depends on progress on several others. A child cannot truly be well-nourished if her household lacks clean water, her mother is anaemic, the local clinic is understaffed, or the family farm collapses due to erratic rainfall.

For public nutrition, the SDGs marked a major shift in framing. Earlier global targets focused largely on reducing hunger as a calorie-deficit problem. The new agenda recognised that malnutrition is a multidimensional issue covering undernutrition, micronutrient deficiencies, overweight, and diet-related non-communicable diseases. Nutrition researchers point out that nutrition is directly or indirectly connected to at least 12 of the 17 SDGs, ranging from poverty and education to gender equality and climate action.

The nutrition-relevant SDGs at a glance 🔗

While every goal touches nutrition in some way, three stand out as the operational core for public nutrition practitioners: SDG 2 on ending hunger, SDG 3 on health and well-being, and SDG 6 on clean water and sanitation. Together they cover what people eat, how their bodies use that food, and the environment that determines whether nutrients are absorbed or lost to infection.

SDG 2: Zero hunger 🔗

SDG 2 aims to end hunger, achieve food security, improve nutrition, and promote sustainable agriculture by 2030. It is the only goal where the word “nutrition” appears explicitly in the headline. Within SDG 2, target 2.2 commits countries to ending all forms of malnutrition, including meeting the internationally agreed targets on stunting and wasting in children under five and addressing the nutritional needs of adolescent girls, pregnant and lactating women, and older persons.

The indicators under this target are very specific: prevalence of stunting (low height-for-age), wasting and overweight (weight-for-height deviations from WHO Child Growth Standards), and anaemia in women aged 15 to 49 by pregnancy status. These are the same indicators that public nutrition programmes are evaluated against, which is why national missions are usually built around them.

SDG 3: Good health and well-being 🔗

SDG 3 covers the full life-course of health, from maternal and child mortality to non-communicable diseases (NCDs), mental health, and universal health coverage. Its connection to nutrition is direct. Undernutrition in early childhood drives almost half of all under-five deaths globally, while excess weight and poor-quality diets fuel the rising burden of diabetes, cardiovascular disease, and certain cancers. A recent editorial in Frontiers in Nutrition noted that dietary risk factors were linked to around 11 million deaths and 255 million DALYs in a single year of global burden-of-disease estimates.

For public nutrition, SDG 3 is where the “good food” agenda meets the healthcare delivery system. Antenatal care, immunisation, iron-folic acid supplementation, deworming, and treatment of severe acute malnutrition all sit at the interface of health services and nutrition outcomes.

SDG 6: Clean water and sanitation 🔗

SDG 6 is often underestimated in nutrition discussions, but it is arguably the most important upstream determinant of how well food translates into health. Contaminated water and poor sanitation drive diarrhoea, intestinal worms, and environmental enteropathy, a chronic gut condition that damages the intestinal lining and prevents nutrient absorption even when children are fed adequately. Researchers have repeatedly shown that SDG 6 has direct linkages with SDGs 1, 2, 3, 5, 11, 14 and 15, making it a cross-cutting enabler.

The targets here include universal access to safe drinking water (6.1), adequate sanitation and hygiene including ending open defecation (6.2), and improving water quality by reducing pollution and untreated wastewater (6.3). For a country to genuinely move the needle on stunting and anaemia, these basics have to be in place.

India’s progress on the nutrition-relevant SDGs 🔗

India’s position on the SDGs is a study in contrasts: rapid improvements in some areas, stagnation or reversal in others. NITI Aayog’s SDG India Index 2023-24 shows that the country’s overall composite score has risen steadily since 2018, with notable progress on Goals 1, 3, 6, 7, 9, and 11. Thirty-two States and Union Territories are now in the “Front-runner” category, signalling broad-based but uneven gains.

SDG 2 in India: persistent malnutrition 🔗

Despite being the world’s largest producer of milk and pulses, India continues to carry an outsized share of global malnutrition. NFHS-5 (2019-21) recorded stunting in children under five at 35.5%, wasting at 19.3%, and underweight at 32.1%, only modest improvements over NFHS-4. Anaemia trends are even more worrying. According to NFHS-5, anaemia among women aged 15 to 49 rose from 53% to 57%, reversing earlier gains and signalling that iron-folic acid supplementation and dietary diversification have not been working as expected.

India’s flagship response is POSHAN Abhiyaan, launched in 2018, now integrated with Saksham Anganwadi and Poshan 2.0. The mission targets stunting, undernutrition, anaemia, and low birth weight through technology-enabled monitoring (the Poshan Tracker), community mobilisation, and convergence across ministries. The Observer Research Foundation notes that POSHAN Abhiyaan is explicitly designed to help India meet SDG 2’s target of eliminating all forms of malnutrition by 2030, including the 2025 global targets on child stunting and wasting.

Other building blocks include the Public Distribution System (PDS) under the National Food Security Act, the Mid-Day Meal Scheme (now PM POSHAN), the Integrated Child Development Services (ICDS), and large-scale food fortification of rice, salt, and edible oils. Together they form one of the world’s largest social safety nets.

SDG 3 in India: gains in health, gaps in diet 🔗

India has made measurable progress on SDG 3 indicators like under-five mortality, maternal mortality, immunisation coverage, and institutional deliveries. The Pradhan Mantri Jan Arogya Yojana (Ayushman Bharat) is now the world’s largest publicly funded health assurance scheme. At the same time, the nutrition transition is driving a parallel epidemic of overweight, obesity, and type 2 diabetes, especially in urban areas. Independent assessments using NFHS data, including a Harvard T.H. Chan School of Public Health study, found that India is off-target for 19 of 33 health-related SDG indicators, with critical concerns around anaemia, child wasting and overweight, and access to basic services.

SDG 6 in India: rapid scale-up, lingering quality issues 🔗

This is where India has moved fastest. The Swachh Bharat Mission, launched in 2014, transformed rural sanitation coverage from around 40% to near-universal in five years, with over 10.5 crore household toilets built and the country declared open-defecation-free on 2 October 2019. The Jal Jeevan Mission, launched in 2019, has dramatically expanded piped water access, with rural households having functional tap connections rising from about 17% at launch to a majority within a few years.

These gains matter enormously for nutrition. Cleaner water and safer sanitation reduce the diarrhoeal disease burden, which is one of the strongest immediate drivers of child stunting. However, challenges remain. Studies highlight wide inter-district inequality in WASH coverage, especially in western and northeastern districts, along with groundwater depletion, water quality issues, and uneven wastewater treatment.

How the goals connect inside public nutrition practice 🔗

It helps to think of these goals not as a checklist but as a connected system. A pregnant woman who lives in a household with a tap connection (SDG 6) is less likely to fall ill, more likely to absorb iron from her diet (SDG 2), and more likely to deliver a healthy baby through an institutional birth (SDG 3). Her daughter, growing up with adequate complementary feeding, deworming, and immunisation, is then less likely to be stunted, more likely to stay in school (SDG 4), and more likely to enter adulthood without anaemia.

This is why public nutrition is increasingly described as a multidisciplinary discipline. A nutritionist working on SDG targets in a district has to engage with agriculture extension officers, water and sanitation engineers, ICDS supervisors, school teachers running mid-day meal programmes, and primary healthcare staff. Goals 1 (poverty), 4 (education), 5 (gender equality), and 13 (climate action) all feed into food affordability, dietary choices, and women’s ability to make nutrition decisions in the household.

The road ahead to 2030 🔗

Globally, only a fraction of SDG targets are on track. The United Nations’ SDG Report 2024 warned that progress on hunger has stalled and in some regions reversed, with rising food prices, conflict, and climate shocks setting back gains made before the pandemic. For India, the next five years will be decisive. The composite SDG score is improving, but the indicators most closely tied to nutrition, particularly anaemia in women and children and dietary diversity, need a sharper focus.

Public nutrition professionals will play a central role here. Effective interventions will likely combine biofortified and fortified staples, large-scale behaviour change communication, better surveillance through tools like the Poshan Tracker, climate-resilient agriculture, and continued investment in WASH infrastructure. The 2030 deadline is closer than it feels, and the path runs through millions of Anganwadi centres, school kitchens, primary health centres, and village water committees.

What do you think? Which of the nutrition-relevant SDGs do you believe needs the most urgent attention in your own state, and what one intervention would you prioritise if you had to design a district-level nutrition plan that addresses Goals 2, 3, and 6 together?

References

1. https://sdgs.un.org/goals
2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11755036/
3. https://link.springer.com/article/10.1186/s12889-022-14316-0
4. https://www.niti.gov.in/sites/default/files/2024-07/SDG-INDIA-INDEX-2023-24.pdf
5. https://www.impriindia.com/insights/poshan-abhiyaan-2-0-indias-nutrition/
6. https://www.poshanabhiyaan.gov.in/
7. https://www.orfonline.org/research/towards-a-malnutrition-free-india-63290
8. https://hsph.harvard.edu/news/india-behind-on-progress-toward-un-sustainable-development-goals/
9. https://swachhbharatmission.ddws.gov.in/
10. https://jaljeevanmission.gov.in/
11. https://pmc.ncbi.nlm.nih.gov/articles/PMC11414553/
12. https://unstats.un.org/sdgs/report/2024/