Food Insecurity: Causes, Health Effects and Solutions

Food insecurity means not having reliable access to enough safe, nutritious food for an active, healthy life. It ranges from worrying about running out of food, to cutting back on meal quality, to skipping meals or going hungry. It is caused by poverty, rising prices, conflict, climate shocks and inequality, and it affects health at every age.

Food insecurity is not only a problem in low-income countries. It can affect families anywhere, including students, migrant workers, older people living alone and households facing job loss or high living costs. This guide explains what food insecurity is, its causes and effects on health, and practical steps for individuals, families and communities.

What is food insecurity?

The Food and Agriculture Organization of the United Nations (FAO) describes food security as all people, at all times, having physical and economic access to enough safe, nutritious food to meet their needs and preferences. Food insecurity is the opposite: when one or more parts of that are missing.

The four pillars of food security

• Availability: enough food is produced or imported.
• Access: people can afford and reach that food.
• Utilisation: people can use food well, with clean water, safe preparation and good health to absorb nutrients.
• Stability: access stays reliable over time, not just in good months.

Levels of food insecurity

Food insecurity is often described as mild, moderate or severe. Mild may mean worrying about affording food. Moderate often means eating cheaper, less varied food or smaller meals. Severe means running out of food completely and going without for a day or more. For a wider view of the global picture, see our article on food security.

What causes food insecurity?

Causes usually overlap and reinforce each other.

• Poverty and low income: the most common cause. When money is tight, food is often the first budget to be cut.
• Rising food and living costs: rent, fuel and utility bills can squeeze what is left for food.
• Unemployment or unstable work: irregular income makes planning meals difficult.
• Conflict and displacement: war disrupts farming, trade and markets and forces people from their homes.
• Climate and environmental shocks: droughts, floods and heatwaves damage crops and livestock.
• Health problems and disability: illness can reduce income and make shopping and cooking harder.
• Limited access: living far from affordable shops, without transport, or in areas where fresh food is scarce.
• Social isolation: older adults living alone may struggle to shop and cook.

How does food insecurity affect health?

When food is scarce or uncertain, people often rely on cheap, filling foods that are high in refined starch, sugar and fat but low in vitamins, minerals and protein. This can lead to both undernutrition and, sometimes, weight gain, which is known as the “double burden of malnutrition”.

Our article on malnutrition explains these effects in more depth.

Practical ways to stretch your food budget

If money is tight, these strategies can help you eat as well as possible. Our full guide to healthy eating on a budget has many more ideas.

Affordable, nutritious staples

• Dried or tinned lentils, chickpeas and beans: cheap, filling and rich in protein and fibre.
• Rice, oats, wholemeal flour (atta) and potatoes for energy.
• Eggs, a low-cost source of high-quality protein.
• Frozen vegetables and seasonal fresh produce, which are often cheaper and last longer.
• Tinned fish, such as sardines or tuna.
• Plain yoghurt and milk for calcium.

Smart shopping and cooking

• Plan meals for the week and shop with a list.
• Compare unit prices and try supermarket own brands.
• Cook in batches, such as a large pot of dal or vegetable curry, and freeze portions.
• Use leftovers creatively, for example turning rice into a vegetable pulao.
• Store food properly to reduce waste.

Solutions: what communities and governments can do

Lasting solutions need action at many levels:

• Social protection: cash support, food vouchers and fair wages help families afford food.
• School meal programmes: provide reliable nutrition for children and support learning.
• Food banks and community kitchens: offer emergency support. Many communities and mosques also run food sharing, especially during Ramadan.
• Supporting local farmers: improves availability and incomes.
• Reducing food waste: across farms, shops, restaurants and homes.
• Climate resilience: drought-resistant crops and better water management.

Learn about the types of help available in our guide to food assistance programmes.

When to see a doctor or nutrition professional

Seek help if you or someone in your family:

• Is losing weight without trying or a child is not growing as expected.
• Feels constantly tired, dizzy or breathless, which may signal anaemia.
• Has a long-term condition, such as diabetes, that is hard to manage on a limited budget.
• Is pregnant or breastfeeding and struggling to eat enough.
• Feels overwhelmed, anxious or low because of food worries.

If someone is severely unwell or in immediate danger, contact your local emergency services.

Frequently asked questions

What is the difference between food insecurity and hunger?

Hunger is the physical feeling of not having enough to eat. Food insecurity is broader and includes worry about food, eating poorer-quality food and skipping meals, even before hunger occurs.

Can someone be overweight and food insecure?

Yes. When healthy food is unaffordable, people may rely on cheaper, energy-dense foods. This can lead to weight gain alongside vitamin and mineral deficiencies.

How can I help reduce food insecurity in my community?

You can donate to or volunteer at local food banks and charities, reduce food waste at home, share meals with neighbours in need, and support policies that make healthy food affordable.

Get personalised nutrition support

Eating well on a limited budget is possible with the right plan. Dr. Rida Saeed offers online consultations to help you make the most of affordable foods while meeting your health needs. Explore our nutrition services or book on WhatsApp +971 54 448 6145.

This article is for general information only and is not a substitute for medical advice. Please speak to your doctor or a qualified health professional about your individual needs.