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Growing Up Strong: What Nutritionists Recommend for Kids
Childhood nutrition between ages 2 and 18 sets the foundation for bone density, brain development, and long-term metabolic health. Here's what the evidence actually says, by age group.
Staff Writer
Key Takeaways
- Childhood nutrition between ages 2 and 18 sets the foundation for bone density, brain development, and long-term metabolic health
- Here's what the evidence actually says, by age group
The nutritional choices made between ages 2 and 18 represent the most important nutritional window of a human life. This is when bones are built, brains are wired, immune systems are trained, and metabolic baselines are established. The foundation laid here shapes health outcomes for decades.
What nutritionists recommend isn't complicated — but it is specific. Here's what the evidence says, broken down by developmental stage.
6 Nutrients Growing Children Can't Afford to Skip
- Calcium & Vitamin D
- Works together to build bone density — the foundation laid in childhood determines peak bone density for life. Deficiency in adolescence is permanent.
- Iron
- Critical for cognitive development, energy production, and immune function. Especially important for menstruating adolescent girls, who are at high risk of deficiency.
- Omega-3 Fatty Acids
- Essential for brain development, mood regulation, and reducing systemic inflammation. Most children are chronically deficient — dietary sources are the most reliable fix.
- Zinc
- Supports immune function, cellular growth, and wound healing. Deficiency is common in children with limited protein variety.
- Protein
- Builds muscle, organs, and tissue during every growth phase. Prioritize quality and whole food sources — variety across animal and plant proteins is ideal.
Dairy, leafy greens, salmon, and eggs
Beef, lentils, spinach, and fortified whole grains
Salmon, cod, walnuts, and flaxseed
Beef, chicken, pumpkin seeds, and legumes
Prioritize quality over quantity; whole food sources over powders
