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LET'S TAKE A DEEP DIVE INTO PODCAST #94
Could Better School Lunches Help Build Healthier Brains?
SUMMARY
When we talk about improving children’s health, most conversations eventually turn to healthcare. Better treatments. Earlier diagnoses. New medications.
Those advances certainly matter.
But one of the biggest opportunities to improve lifelong health may have very little to do with hospitals or doctor’s offices.
It may begin with something much simpler:
the food children eat every day.
This was the focus of a fascinating conversation I recently had with the team at Eat Real, an organization working to improve the quality of food served in schools. Their mission is straightforward: replace highly processed meals with real, minimally processed foods that better support children’s health.
As someone who has spent much of my career studying the gut microbiome and the brain-gut connection, I see this as much more than a conversation about nutrition. It’s a conversation about how we shape health from the very beginning of life.
Childhood Is When the Foundation Is Built
One of the biggest misconceptions about nutrition is that it becomes important only after problems appear.
In reality, childhood is one of the most influential periods for building long-term health.
During these early years, the body is developing rapidly. The immune system is learning how to respond appropriately. Metabolic pathways are being established. The brain is undergoing remarkable growth, and the gut microbiome is developing into the complex ecosystem that will help regulate digestion, immunity, and even communication with the brain throughout life.
Every meal contributes to that process.
Food isn’t simply providing calories for growth. It’s sending signals that influence how these systems develop and interact for years to come.
Why the Gut Microbiome Matters So Much
My own research has increasingly focused on the trillions of microorganisms living within our digestive tract.
These microbes help digest components of food we couldn’t process on our own, produce important metabolites, strengthen the intestinal barrier, regulate inflammation, and communicate continuously with the brain.
Perhaps most importantly, they’re highly responsive to diet.
A diverse, fiber-rich diet encourages a healthy and resilient microbial community. Diets dominated by highly processed foods and added sugars tend to reduce that diversity, making the ecosystem less resilient over time.
Because the microbiome influences so many aspects of health, the foods we introduce during childhood may have effects that extend well beyond those early years.
Schools Have an Opportunity to Make a Difference
For millions of children, school is where they eat at least one, and often two, meals every weekday.
That makes school nutrition one of the most powerful public health opportunities available to us.
For many years, convenience understandably became the priority. Meals needed to be inexpensive, easy to prepare, and widely distributed. But convenience often came at the expense of nutritional quality.
Organizations like Eat Real are helping to demonstrate that another approach is possible.
By serving more fresh, minimally processed foods and reducing reliance on highly processed products, schools can create an environment that better supports children’s physical and mental well-being.
Children Often Surprise Us
One of the most encouraging parts of our conversation was hearing what happens when schools begin making these changes.
Teachers frequently notice improvements in attention, energy, and classroom engagement.
Parents report feeling more confident about the meals their children receive during the school day.
And perhaps most surprisingly, many children genuinely enjoy the healthier options.
We sometimes assume children naturally prefer highly processed foods, but food preferences are learned. When healthier foods become the norm, those preferences begin to change as well.
That’s an encouraging reminder that habits formed early can have lasting effects.
It's About More Than Calories
For many years, nutrition has often been reduced to a simple equation of calories consumed versus calories burned.
While energy balance certainly matters, it doesn’t tell the whole story.
Different foods interact with our biology in very different ways.
Fiber nourishes the gut microbiome.
Fermented foods help support microbial diversity.
Highly processed foods can alter signals involved in hunger, satiety, metabolism, and inflammation.
In other words, our bodies respond not only to the amount of food we eat, but also to the quality of that food and the information it provides to our biological systems.
Small Changes Can Create a Ripple Effect
What I find especially exciting about improving school meals is that the benefits rarely stop at school.
Children bring new foods and new habits home.
Parents become more curious about ingredients and food quality.
Communities begin supporting local growers and healthier food systems.
A change that begins with one lunch can gradually influence families, neighborhoods, and future generations.
This reflects something I’ve come to appreciate throughout my career: health is rarely determined by a single factor. It’s the product of many interconnected systems working together.
Looking Ahead
Modern medicine continues to develop remarkable new treatments for chronic disease, and many of these advances are important.
But we should never lose sight of prevention.
Helping children develop healthy relationships with real food may be one of the most effective investments we can make, not only for their physical health, but also for their cognitive development, emotional well-being, and lifelong resilience.
We often think of nutrition as something we fix after disease appears.
Perhaps it’s time we started thinking of it as one of the first building blocks of health
FAQ
Why is childhood nutrition so important?
Early life is when the body’s core systems are being developed. Nutrition during this time influences metabolism, immune function, brain development, and the gut microbiome. These early patterns can shape health outcomes for decades.
What is the gut microbiome, and why does it matter for kids?
The gut microbiome is the community of microorganisms living in the digestive system. It plays a key role in digestion, immune health, and communication with the brain. A healthy microbiome,supported by whole, nutrient-rich foods,can improve both physical and mental well-being.
Are school meals really that influential?
Yes. For many children, school meals make up a significant portion of their daily nutrition. Improving the quality of those meals can have a consistent and widespread impact on children’s health, behavior, and academic performance.
Do kids actually like healthier food?
When meals are made with fresh, flavorful ingredients, many children respond positively. Preferences are shaped by exposure, and kids often adapt quickly when healthier options become the norm.
What’s the problem with ultra-processed foods?
Ultra-processed foods often contain added sugars, artificial ingredients, and low-quality fats. These can disrupt the gut microbiome, contribute to inflammation, and negatively impact metabolism, energy levels, and long-term health.
Can better nutrition improve focus and behavior in school?
Many teachers and parents report improved concentration, fewer energy crashes, and better overall behavior when children eat more balanced, nutrient-dense meals. While more research is ongoing, these observations are consistent with what we know about the gut-brain connection.
How does food connect to mental health?
The gut and brain are closely linked through what’s known as the gut-brain axis. Diet influences this connection, meaning that what children eat can affect mood, stress resilience, and cognitive function.
Are medications like weight-loss drugs a solution for kids?
While certain medications may play a role in specific medical cases, they do not address the root causes of poor health. Nutrition remains a foundational factor, especially during early development.
What are simple ways to improve a child’s diet at home?
- Offer more whole, minimally processed foods
- Reduce added sugars and artificial ingredients
- Introduce a variety of fruits, vegetables, and fiber-rich foods
- Include fermented foods when possible
- Encourage curiosity and positive experiences around food
What’s the bigger takeaway?
Improving childhood nutrition isn’t just about preventing disease,it’s about supporting healthier, more resilient, and more thriving lives. Small, consistent changes,especially when applied at scale,can have a lasting impact on the future of health.