Fueling Focus: Nutrition Strategies to Support Children’s Brain Health

Good nutrition is a powerful tool to support children’s academic performance, emotional regulation, and development. During the school year, children face learning tasks that require sustained attention, memory, and problem-solving skills, all of which are influenced by nutrient intake, dietary patterns, and lifestyle factors such as sleep and physical activity.^1,2 Brain development continues through childhood and adolescence, with grey matter (which contains neuron cell bodies and is involved in processing and cognition) growth peaking at 10-12 years and white matter (which consists of myelinated nerve fibers that support communication between brain regions) volume increasing throughout adolescence, reaching its peak at 18-20 years.³ School-aged children experience the highest rate of brain development between the ages of 5 and 15, making nutrition during this period particularly critical.³ 

Research shows that several key nutrients are crucial for supporting brain health and learning. Consistent intake of carbohydrates, protein, and micronutrients like B vitamins, iron, and omega-3 fatty acids can help children thrive both in and out of the classroom.^1,3 Meal timing matters, too. Although studies have yielded mixed results, long-term reviews consistently show a link between breakfast consumption and improved cognitive and academic performance in children and adolescents.^4-6 As kids head back to school again this year, healthcare providers should be equipped to help their patients perform at their best academically. 

Key Nutrients for Learning

Meals that combine macronutrients – complex carbohydrates, protein, and healthy fats – can support sustained energy and focus in kids. A large review analyzing 34 studies over four decades found that stable blood glucose levels after breakfast were associated with better morning cognitive function.^4-6 For example, a meal like oatmeal with peanut butter and banana, or eggs with whole-grain toast and fruit, offers optimal macronutrient balance, promoting steady blood sugar and sharper mental performance.⁶

Several key micronutrients play a critical role in supporting children’s brain health and cognitive development. A large systematic review of 12 randomized control trials examined how nutrition interventions affect cognitive outcomes in preschool-aged children (2 to 6 years). Specifically, iron supplements and fish consumption (rich in omega-3 fatty acids, B6, and B12) showed positive effects on cognitive outcomes for these kids.¹

Iron is an important nutrient, particularly during periods of rapid growth such as early childhood and adolescence, because it helps deliver oxygen to the brain. Low iron status can contribute to poor concentration, fatigue, and developmental delays.¹ To maximize absorption, it’s helpful to pair iron-rich foods (meat, poultry, seafood, eggs, beans, lentils)  with sources of vitamin C like citrus, berries, peppers, broccoli, or potatoes.⁷

B vitamins (including B12, B6, and folate) are essential for neurotransmitter production and brain development.³ B-12, in particular, plays a critical role in neural myelination and brain development during childhood.⁸ Adequate intake of these vitamins has been associated with reduced irritability, improved mood, and fewer difficulties with attention and focus in children.⁹ B-12 is found in animal products (dairy, meat, poultry, seafood, eggs, and fortified foods), B6 is found in dairy, meat, poultry, eggs, and vegetables like carrots, spinach, green peas, bananas, and beans, and folate is found in greens like spinach and lettuce, citrus, avocado, and legumes. 

Omega-3 fatty acids, especially Docosahexaenoic acid (DHA), are important for building and maintaining brain cell structure in children and have been associated with improved neurodevelopment test scores in some studies.¹⁰ Critical to fetal and infant brain development, DHA accumulates rapidly in the brain from before birth through at least age 2.¹⁰ This need for omega-3s after birth is one reason why DHA is often added to infant formulas. Though it’s a critical nutrient during infancy, many people don’t realize that these healthy fats have been shown to support memory, focus, and emotional regulation in school-aged children, too.¹⁰ Because many children may not consume enough omega-3s through food alone from sources like fatty fish (salmon, tuna, trout, mackerel, sardines, herring), walnuts, and chia or flaxseed, supplementation can be beneficial in populations with low omega-3 intake.

Many children can meet their nutritional needs through a balanced diet, but picky eating, food insecurity, or dietary restrictions may create gaps.¹¹ Large surveys done over time in the US have shown that micronutrient inadequacy is generally low, though some children struggle to get enough vitamin A, C E, D, folate, calcium, iron, magnesium, zinc, and potassium from diet alone.^11,12 A daily multivitamin that meets age-appropriate guidelines may offer peace of mind for some families. It’s important to evaluate this on a case-by-case basis with the child’s family and doctor or registered dietitian for guidance. 

Kid-Friendly Food Combos to Support Learning 

How to combine protein + complex carbs + healthy fats for sustained energy and focus

Snack Pairings

Apple + almond butter

Hummus + carrots or whole grain crackers

Cheese + whole grain crackers or tangerine slices

Orgain® Kids’ smoothies

Breakfast Ideas

Whole grain toast + scrambled eggs + fruit

Greek yogurt + berries + granola

Oatmeal + peanut butter or sunflower seed butter + banana

Iron fortified cereal + DHA fortified milk

Orgain® Kids’ nutrition shakes

Quick Meal Ideas

Fish sticks (baked or air-fried) with a side of sweet potato fries and steamed broccoli

Bean quesadillas on whole wheat tortillas

Whole grain pasta + turkey or chicken meatballs + cooked spinach blended into a red sauce

Creating Positive Nutrition Habits at Every Age

The approach to teaching good nutrition habits will vary depending on the child’s age and developmental stage.^12,13 Young children can learn by helping with grocery shopping or simple food preparation, such as washing vegetables. School-aged children may enjoy creating snack combinations from healthy choices or helping pack lunches; they may be more likely to choose healthy options if they participate. Teens may benefit from discussions about how food affects energy, skin health, or sports, music, and/or academic performance, topics relevant to their daily experiences and goals. Regardless of age, involving kids in meal planning helps foster autonomy, reduces mealtime stress, and promotes lifelong healthy habits.^12,13 Modeling healthy habits at home is one of the most effective ways to reinforce positive nutrition behaviors. Shared meals, minimizing distractions at the table, and creating a low-pressure environment around food all help children build a healthy relationship with eating.^14,15 For busy families, preparing meals or snacks in advance – even something as simple as chopping up some fruits and veggies – can ease decision fatigue and support consistent intake. Registered Dietitian Nutritionist Ellen Satter offers helpful resources on feeding children: https://www.ellynsatterinstitute.org/how-to-feed/the-division-of-responsibility-in-feeding/.¹⁶ Orgain® Healthcare also offers a Health Needs Library that includes several pediatric  resources to support healthcare providers: https://healthcare.orgain.com/guides/view/guide/pediatric

Lifestyle Considerations for Learning 

Both sleep duration and quality, as well as physical activity, should be taken into consideration to set kids up for successful learning. A review of nine studies (one longitudinal and eight cross-sectional) found that children and adolescents who were highly physically active and either had low screen time tended to perform best academically.² Regular physical activity – at least 60 minutes of moderate-to-vigorous movement per day for school-aged children and adolescents – is associated with cognitive benefits, lower rates of depression, and improved academic performance.¹²

Getting enough sleep has also been linked to better academic outcomes.² A systematic review of three cross-sectional studies found that children who had lower screen time and longer sleep duration showed better cognitive and executive functioning.^2,17 Studies have shown that sleep has a direct, linear relation to attention problems, executive functions, academic achievement, and acting-out behaviors in children.¹⁸ For optimal health, children ages 3 to 5 should regularly get 10 to 13 hours of sleep per day, including naps. Kids ages 6 to 12 need 9 to 12 hours, and teens ages 13 to 18 should aim for 8 to 10 hours each day.¹⁹ 

Takeaway for Healthcare Providers

Supporting children’s brain health through nutrition involves a whole-child approach that includes key nutrients, meal timing, sleep, physical activity, and family engagement. Reinforcing consistent intake of iron, B vitamins, and omega-3s in addition to healthy dietary patterns like eating breakfast can help optimize academic and behavioral outcomes. Use developmentally appropriate strategies and encourage families to focus on sustainable choices that fit their lifestyle and cultural context.

This brief is for informational purposes only and is not intended to be medical advice. The material presented in this brief, and displayed on the associated webpage(s), is not intended to be a substitute for professional medical advice, diagnosis, or treatment. You should seek the recommendation of a medical professional regarding a medical condition or treatment or before starting a new nutrition and/or health regimen.

Orgain, LLC is providing this brief on an “as is” basis and makes no representations or warranties of any kind with respect to this brief. Orgain, LLC nor any of its directors, employees or other representatives will be liable for damages arising out of or in connection with the use of this brief. This is a comprehensive limitation of liability that applies to all damages of any kind, including (without limitation) compensatory, direct, indirect or consequential damages, loss of data, income or profit, loss of or damage to property and claims of third parties.

References:

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