We have often heard it said that breakfast is the most important meal of the day, and for that reason, children are pretty much universally encouraged to have a good intake before coming to school.
Unfortunately, for one reason or another, that is not always possible, resulting in young bodies and minds suffering in the learning process.
A student able to consume much-needed early morning calories will enjoy certain advantages over one who has (by choice or otherwise) gone without. As teachers, we observe repeatedly that children arrive at school full of energy and ready for another day of lively learning and play, yet by mid-morning, they begin to crash in energy levels and, consequently, in performance.
The same applies during break and lunch times at school. Which children do not enjoy running around, letting off steam, and reentering the classroom revitalised for the next session of learning? But to our surprise, as teachers, we often witness not a reinvigoration among the students, but an onset of lethargy and bloated stomachs—leading to a rapid drop-off in performance.
The Brain–Food Connection
So, how come what our children eat affects their learning process? Well, a simple understanding of how the brain works and reacts in relation to what we put into our bodies is required.
The brain uses glucose as fuel, but steady release is key. This means that even though large and sudden increases in sugar—commonly known as ‘sugar rush’—are likely to produce increased bouts of energy, they are also likely to be short-lived and followed by energy crashes, leading to poor concentration as a result. Therefore, rather than relying on short-term gains, slower-releasing foods—such as oats—help maintain consistent energy levels throughout the day. A chocolate bar quickly generates energy; oats, meanwhile, sustain it.
Hydration is equally important. When children are dehydrated, it can affect their memory, attention, and mood—which sometimes appears simply as a lack of focus in the classroom.
What Teachers Actually See
Patterns that we, as teachers, note in the classroom include the following.
Firstly, students who skip breakfast altogether often start the day slower in general. They tend to be sleepy and have less engagement during the morning lessons. Should the school have an early morning assembly or form teacher time, these students can often be seen with droopy eyes and, if allowed, heads on their desks.
Secondly, students who take sugary snacks on board during break or lunch time are, observably, prone to shots of hyperactivity—followed by the noticeable onset of fatigue as well as more dramatic drop-offs in the students’ productivity and performance.
On the other side of the coin, however, the students who have balanced meals and snacks tend to focus more consistently throughout the day. On top of that, their participation in the learning process is noticeably stable and steady as well.
Behaviour and Emotional Regulation
As well as influencing academic performance, nutrition plays an important role in children’s behaviour and emotional regulation.
Hungry children are less capable of being patient, concentrating, or being productive in the classroom. Instead, they are more likely to be emotional, disruptive, and angry. The sudden drops in energy—often occurring after the ‘sugar rush’—can lead to dramatic changes in mood, which is from irritability to fatigue. This can mean that what appears to be inattentiveness or restlessness in a child may, in fact, be poor energy fuelling. It is not necessarily a juvenile behaviour driven by a lack of discipline or motivation.
The Common Problem with the Daily Lunchbox
This issue is often most visible in the daily lunchbox or morning routine. Many families tend to balance convenience with nutrition, especially on busy mornings, so quick snacks are common. However, more balanced meals, in fact, can better support children’s focus and energy throughout the day.
Having said that, it’s also important to recognise that, at the end of the day, families can, rather understandably, only do the best of their ability. However, small and practical improvements to the child’s daily lunchbox can still make a meaningful difference.
Additionally, a balance needs to be found because it must also be remembered that children (and adults, for that matter) nevertheless want to enjoy the meal that they will be consuming. After all, a diet of endless broccoli—no matter how healthy it may be—is not likely to be particularly inspiring, especially for a child.
How Schools Can Help
Of course, not everything is down to the parents alone. Schools also play an important role in shaping children’s eating habits and attitudes. School cafeterias, in particular, are important tools of influence in students’ choices and, therefore, should offer balanced, healthier meal options for the students.
In addition, many schools are now seeing the benefits of embedding nutrition-related initiatives into students’ education and wellbeing programmes. These initiatives can, indeed, help children understand how food affects them in terms of energy, focus, and overall health. Schools can support more than just the students’ academic success; they can also promote healthy habits as well as the right lifelong attitudes towards food and wellbeing.
Practical Suggestions
- Start small. Encourage children to never skip breakfast by choice. Even the simplest meal intake can help students start the day with better focus;
- Aim for balance in nutrition rather than perfection. A mix of carbohydrates, protein, and fruit can provide lasting energy;
- Be mindful of sugary snacks and drinks, which may lead to short bursts of energy (‘sugar rush’) followed by fatigue;
- Encourage regular water intake, which can support concentration and overall wellbeing.
Reflection
In the end, learning begins long before the first lesson starts. The meal that children consume plays a quiet but essential role in their readiness to learn. What they consume shapes their energy, focus, and ability to engage.
Feeding children well is not just about physical health, though; it is also about giving them the best chance to thrive—both inside and outside the classroom. A child needs the right fuel to learn before they step into the world, pick up their pencil, open their books, absorb all the knowledge that they will receive at school, and participate in their learning process.