How School Nutrition Affects Student Health and Development School nutrition has a direct impact on a child's health, ability to concentrate and long-term eating habits. This article from Westlink helps parents understand the role of school lunches, age-specific nutritional needs, and how to assess whether a school genuinely takes care of its students through what it serves at mealtimes. What Is School Nutrition? School nutrition refers to a diet designed specifically for children of school age. It's not just about making sure a child is full — it's about providing the right nutrients in the right amounts for each stage of development. Unlike adults, children are growing very fast. Each stage calls for a different balance of nutrients to support height, brain development and the immune system. Definition and the 4 Food Groups Plus Essential Micronutrients A balanced school meal needs to cover four core food groups: Protein: builds muscle and supports immunity. Found in meat, fish, eggs and legumes. Carbohydrates: the main source of energy for activity and learning. Fats: support brain development and help the body absorb vitamins. Vitamins and minerals: regulate the body's functions. Beyond these four groups, children also need key micronutrients such as iron, zinc, calcium, vitamins A and D, and fibre. A lack of micronutrients is a common reason children grow slowly or fall sick often, even when they appear to be eating enough. Impact on Focus, Memory and Academic Performance A child's brain uses a large share of their daily energy intake. When nutrients are lacking, memory and information processing noticeably decline. Children with low iron levels tend to feel tired, struggle to concentrate and get drowsy in class. Children who skip breakfast or snack heavily on sugary food often experience a sharp energy crash partway through the day. By contrast, a stable diet helps children stay alert. This is why school meals are directly linked to academic performance, not just to a child's weight. A balanced meal needs to combine all food groups and micronutrients The State of School Nutrition in Vietnam The nutrition picture for children in Vietnam currently shows two extremes at once — something that often surprises parents. Malnutrition and Overweight Among Students According to the 2019–2020 National Nutrition Survey published by Vietnam's Ministry of Health and the National Institute of Nutrition, the rate of stunting among children aged 5–19 stood at 14.8%, down sharply from 23.4% in 2010. At the other end of the scale, overweight and obesity rates rose quickly. Among children aged 5–19, the rate more than doubled, from 8.5% in 2010 to 19% in 2020. In urban areas alone, that figure reached 26.8% — in simple terms, roughly 1 in 4 children in cities is overweight or obese. These two seemingly opposite problems share the same root cause: an unbalanced diet. A child can eat a lot and still lack micronutrients, or take in excess energy while getting too few actual nutrients. Everyday Habits That Throw Children's Diets Off Balance Several common daily habits quietly push children's diets out of balance: Drinking soft drinks, milk tea or energy drinks instead of water. Eating a lot of fried food, instant noodles and snacks that are high in energy but low in nutrients. Getting too much protein while eating too few vegetables and fruit. Skipping breakfast or eating a very light one. These habits often start early, which is why school is an ideal place to help children rebuild healthier eating habits. Daily eating habits have a major impact on children's health Nutritional Needs by School Age Group There's no single formula that works for every age. Energy and nutrient needs change at each stage of development. Early Years and Primary School Early years and primary-aged children grow quickly and are highly active. Their meals need enough energy, with a priority on calcium and vitamin D for bone development. Meals should be varied, spread across several smaller portions, and easy to digest. This is also the ideal stage for children to get used to eating vegetables and fruit. According to the National Institute of Nutrition's guidance on nutritional needs for primary-school students, the reference energy ratio for children aged 6–11 is: protein 13–20%, fat 20–30%, carbohydrates 50–60%. Lower and Upper Secondary School Once puberty begins, children's energy needs rise sharply, as the body builds muscle and reaches its peak growth in height. This stage calls for quality protein, iron, zinc and calcium. Teenage girls are especially prone to low iron levels, so iron-rich foods deserve particular attention. At the same time, sugary drinks and heavily processed foods should be limited. As children start choosing their own food more often at this age, building good habits becomes even more important. At every age, the core principle remains balance and variety. The table below helps parents see the differences between school stages at a glance. School stage Energy priorities Key micronutrients Early years & primary Sufficient energy, spread across several meals Calcium, vitamin D, vitamin A Lower secondary Rising in line with the pace of puberty Iron, zinc, calcium Upper secondary High and stable to support learning Iron (especially for girls), calcium Nutritional needs change at each school age group What Makes a School Lunch Meet the Standard When a child eats lunch at school, the quality of that meal becomes a top concern for parents. A meal that meets the standard needs to be balanced in both nutrition and food safety. A Balanced Meal According to Nutrition Standards A school meal that meets the standard should cover all four food groups and include a variety of foods. A few foundational principles parents should know: A varied menu, with vegetables and fruit prioritised at every meal. Sugar and salt kept within levels appropriate to the child's age. Milk and dairy products from a clear, traceable source. Portions adjusted by school stage rather than applied uniformly across all ages. Vietnam's Ministry of Education and Training (MOET) and the National Institute of Nutrition have set out a framework to help schools build balanced menus. Under this standard, a school lunch should provide 30–40% of a child's daily energy needs — a useful benchmark for judging whether a school's menu is genuinely evidence-based. Food Safety in the School Kitchen Good nutrition means little if a meal isn't safe. Food safety is a non-negotiable requirement in every school kitchen. Based on World Health Organization (WHO) recommendations, the key principles include: Choosing fresh ingredients from a clear, traceable source. Cooking food thoroughly and serving it within a safe time window. Keeping raw and cooked food separate to avoid cross-contamination. Keeping preparation surfaces, utensils and hands clean. Using clean water and keeping food properly covered. A well-run kitchen follows these principles closely, with regular inspections and clearly assigned responsibilities. Parents are entitled to ask the school about these processes. How Parents Can Assess School Meals Most information on this topic stays at the level of general knowledge. But the real question parents want answered is: how do you know if a school actually gets this right? Here are questions worth asking when researching or touring a school: Who plans the menu? Does the school involve a nutritionist, or does it leave this entirely to the catering provider? Is the menu balanced and varied over time? Ask how the school shares its weekly menu with parents. Can parents visit the kitchen? A transparent school is happy to let parents see where meals are prepared. How does the school handle allergies and special diets? An important question if your child has specific needs. Does the school track students' physical development? Regular height and weight checks show a school is paying attention to each child. Where do the ingredients come from? A clear, traceable source is a sign of a kitchen run to a high standard. If a school can answer these questions clearly, that's a good sign. Meals aren't just a support service — they reflect how genuinely a school looks after its students. Parents can ask clear questions before choosing a school lunch programme How Westlink Supports Student Nutrition At Westlink, meals are seen as part of the school's broader approach to care and holistic development — closely tied to how the school looks after each student's wellbeing and physical health. Balanced Meals That Support Student Growth Westlink works to build balanced meals suited to students' developmental needs at each school stage. The goal is to give students enough energy to learn, stay active and maintain healthy eating habits every day. When looking into school meals, parents can speak further with the admissions team about the menu, how mealtimes are organised, and any specific needs their child may have. This helps parents better understand how the school supports students' care day to day. Meals Tailored to Every Student As an international school with students from more than 30 nationalities, Westlink is well accustomed to diverse dietary needs. Every family may have its own requirements around religion, allergies or diet. The school's spirit of personalised support is reflected in everyday meals — Westlink aims to listen and respond to each student's individual needs, rather than applying one fixed menu to everyone. For parents, the best way to get a real sense of this is to see it in person. Observing an actual meal and the school environment will give the clearest answer. A safe kitchen gives parents peace of mind about lunchtime School nutrition has a direct impact on a child's health, focus and long-term eating habits. Understanding what makes a good school lunch helps parents better judge how much a school truly cares. Book a tour to see first-hand how Westlink supports learning and student care.
