Balanced Diet for School-Age Children: WHO

Good food helps kids grow, learn, play and feel great. This concise, practical guide explains the World Health Organisation’s (WHO) healthy diet principles for school-age children (roughly ages 5–12) and translates them into everyday tips that parents and children can use worldwide.

Why a balanced diet matters

A balanced diet supports growth, brain development, immunity and school performance. It also lowers the long-term risk of obesity, diabetes and heart disease. Around the world, the double burden of too many children with overweight while others remain undernourished makes healthy eating especially important. World Health Organization+1

WHO basics: the simple rules

WHO’s healthy-diet advice applies to people of all ages and is easy to adapt for children:

• Plenty of vegetables and fruit. They’re full of vitamins, minerals and fibre; encourage a variety and colourful plates. World Health Organisation
• Choose whole grains and legumes. Brown rice, whole-grain bread, oats, beans and lentils give sustained energy and nutrients. World Health Organisation
• Eat moderate amounts of healthy protein. Fish, poultry, eggs, dairy, nuts and pulses are good sources: rotate them through the week. World Health Organisation
• Limit free sugars. Sugary drinks, sweets and many packaged snacks should be occasional treats. WHO recommends keeping sugars low (less than 10% of total energy, and lower is better). World Health Organisation
• Reduce unhealthy fats and avoid industrial trans-fats. Aim for unsaturated fats (from fish, nuts, vegetable oils) and keep saturated fats low. Industrial trans-fats should be avoided. World Health Organisation
  
  

Smart snacks & lunchbox ideas

Kids eat several times a day snacks matter. Choose nutrient-dense options:

• Fresh fruit, sliced veggies with hummus, yoghurt (plain or lightly sweetened), boiled eggs, nuts/seeds (if allowed at school), whole-grain crackers, home-made chapati rolls with veggies and lean protein.
• Avoid regular sugary drinks and highly processed packaged snacks. Swap soda for water, diluted fruit juice (small amounts) or milk. World Health Organization+1
  
  

School & home: make them partners

Schools have a huge influence. WHO recommends creating healthy school food environments, healthy meal policies, limits on unhealthy foods sold at school, and food education for children. Parents and schools working together make healthy choices easier and normal for kids. World Health Organization+1

Quick actions parents can ask schools for:

• Balanced school meals with fruits/veg and whole grains.
• Limits on sugary drinks and ultra-processed snacks sold on campus.
• Nutrition lessons and hands-on activities (gardening, cooking demos).
  
  

Dealing with picky eaters: realistic tips

• Offer new foods alongside familiar favourites it can take many tries for a child to accept a taste.
• Make food fun: colourful plates, small portions, and let kids help prepare simple recipes.
• Keep family mealtimes regular and screen-free to encourage mindful eating.
• Praise trying, not just finishing; avoid pressure or forcing.
  
  

Hydration and activity

Encourage regular water drinking throughout the day. Combine healthy food with daily physical activity play, sports, and walking to school, for overall health and appetite regulation. WHO links healthy diets and active lifestyles to lower long-term disease risk. World Health Organisation

Cultural adaptation & affordability

WHO guidance is flexible: use locally available foods and family recipes. Pulses, seasonal fruits and vegetables, eggs and small fish are often affordable, nutrient-dense options. Community food traditions can and should be part of healthy eating. World Health Organization+1

Quick “one-week” family checklist

• Include at least one vegetable at every meal.
• Swap refined grains for whole grains 3–5 times this week.
• Replace one sugary snack or drink with a healthy alternative each day.
• Add a protein-rich food to one meal a day (beans, eggs, dairy, fish, chicken).
• Go for one family activity (walk, bike, game) together.
  
  

Final note

WHO’s healthy-diet principles are simple, evidence-based and adaptable: more plants and whole foods, less sugar and unhealthy fats, and supportive environments at home and school. Small, consistent changes make a big difference to children’s growth, learning and lifelong health. For the official WHO resources and deeper guidance, see WHO’s healthy diet fact sheets and school nutrition policy materials.