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Habits formed in childhood last a lifetime.

Children and teenagers have distinct nutritional needs, and specific conditions have genuine nutritional dimensions that clinical intervention can meaningfully address. Jake builds evidence-based youth nutrition plans that give young people the nutritional foundation they need to thrive.

5yrs

Clinical experience

5.0 Rating

From 140+ verified reviews

Eating disorders Exercise addiction Underweight Children's nutrition ADHD for teenagers Healthy growth and development Adolescence nutrition Puberty nutrition Eating disorders Exercise addiction Underweight Children's nutrition ADHD for teenagers Healthy growth and development Adolescence nutrition Puberty nutrition

Specialist care for children and teenagers

Jake works with children and adolescents across a full spectrum of nutrition needs, from foundational healthy development to specific clinical conditions with significant nutritional dimensions.

ADHD Nutritionist

Attention, focus, and emotional regulation all have direct nutritional drivers: iron, zinc, omega-3s, and magnesium directly affect dopamine and noradrenaline. Jake builds ADHD-specific nutrition plans for children that address the biochemistry, not just the behaviour.

Teenager Nutritionist

Puberty doubles the demand for protein, iron, zinc, magnesium and vitamin D, and most teenagers fall short. The result is fatigue, poor focus, mood swings and stalled physical development. Jake builds teenager nutrition plans that fuel growth, stable energy and strong daily performance through every stage of adolescence.

Children Nutritionist

Fussy eating, low energy, slow growth or recurring tummy issues are rarely about willpower. They’re about what’s getting in, what’s being absorbed, and what’s missing. Jake builds children’s nutrition plans that steady eating patterns, support growth and build a healthy relationship with food from the ground up.

Children's nutritional needs aren't smaller versions of adults'.

The nutritional demands of growth, cognitive development, and hormonal maturation create requirements that are distinct, and in some cases dramatically higher, than adult needs. Iron, omega-3 DHA, zinc, calcium, vitamin D, and iodine are all critical at specific developmental stages in ways that don’t apply to adults. Clinical nutrition for young people requires age-specific, development-aware expertise.

Jake’s approach to youth nutrition is practical by design, built around the real challenges of feeding children and teenagers, working with families on achievable dietary changes rather than unrealistic ideals.

31.6%

of Australian adolescents engage in disordered eating behaviors yearly

With eating disorder cases in young people aged 10–19 rising by 86% since 2012

1in5

Young people and adolescents have an eating disorder. 

This means eating disorders are one of the most common and urgent mental‑health conditions affecting young people.

78.4%

Of children with ADHD have been found to be deficient in Vitamin D

Vitamin D is essential for children because it supports bone growth, immune strength, and healthy muscle function.

Signs your child or teenager may need clinical nutrition support

Poor school performance

Difficulty focusing, learning, or retaining information, particularly when combined with sleep issues or dietary patterns

Fatigue & low energy

Persistent tiredness that affects school, sport, or mood… one of the most common presentations of iron deficiency in youth

Digestive complaints

Constipation, bloating, recurrent stomach pain, or food aversions, common in children with gut health issues or food intolerances

Mood changes & irritability

Emotional dysregulation, low mood, or anxiety in young people, all with well-documented nutritional dimensions

Slow growth or underweight

Growth concerns identified by a paediatrician, or persistent difficulty maintaining healthy weight in the context of adequate food availability

Poor immune function

Frequent illness, slow recovery, or recurring infections, often linked to zinc, vitamin D, or gut health deficiency

ADHD diagnosis

A formal or suspected ADHD diagnosis, the nutritional dimensions are well-evidenced and consistently undertreated

Picky eating

Limited food variety creating measurable nutritional gaps in vitamins, minerals, or food groups critical for development

Experiencing more than two of these? Book a consult →

Youth nutrition, done properly.

Jake’s youth nutrition approach is practical, age-appropriate, and family-centred. Recommendations are built around the real constraints of feeding children and teenagers, not theoretical ideals.

01

Comprehensive developmental assessment

A thorough review of your child’s growth, dietary patterns, health history, bloodwork where available, and specific concerns, building a complete nutritional picture for their age and stage.

02

Age-specific nutritional protocol

A tailored plan covering the critical nutrients for your child’s specific developmental stage, with practical, family-friendly strategies that don’t require separate meal preparation.

03

Condition-specific intervention

For ADHD, anxiety, gut health issues, or other specific conditions, Jake builds targeted nutritional protocols with genuine evidence, explained clearly for both parents and young people.

04

Family education & support

Jake works with the whole family, parents receive the clinical rationale, teenagers receive age-appropriate explanations, and younger children benefit from strategies within normal family eating patterns.

05

Ongoing monitoring

Children and teenagers change rapidly. Jake monitors progress and adjusts plans as your child grows, their needs shift, and the clinical picture evolves.

Jake Square

Jake Biggs

Youth health nutrition questions, answered.

Can’t find what you’re looking for? Get in touch and we’ll help.

What age groups does Jake work with?

Jake works with children, pre teens and teenagers, tailoring his approach to the developmental, emotional
and nutritional needs of each age group.

He supports young people with eating disorders, ADHD, anxiety related eating patterns, gut issues, growth and energy concerns, and general nutrition challenges.

His work always includes parent involvement and coordination with existing healthcare providers so progress feels safe, structured and consistent for your child or teenager.

Yes. Jake works collaboratively with paediatricians and child psychologists.

Each clinician supports a different part of your child’s health, and Jake’s nutrition work is designed to fit seamlessly alongside medical and psychological care.

Paediatricians oversee diagnosis, investigations and medical monitoring, while child psychologists support emotional, behavioural and developmental needs.

Jake focuses on the nutritional, metabolic and daily patterns that influence mood, energy, growth, eating behaviours and
overall stability.

When these areas are aligned, children and teenagers progress more smoothly and feel more supported across all parts of their care.

Yes. Nutrition plays a major role in both eating disorders and ADHD because it directly influences the brain, the nervous system, appetite regulation, mood stability and daily behavioural patterns.

In eating disorders, targeted nutrition helps stabilise energy, reduce extremes in hunger and fullness, support the gut, rebuild metabolic function and calm the physiological stress response that keeps symptoms active.

In ADHD, nutrition supports neurotransmitter pathways, blood sugar stability, focus, emotional regulation
and predictable eating patterns.

Jake is flexible. Some families prefer that their child or teenager attends the consultation because it allows Jake to understand their patterns, routines, energy, mood, appetite and day to day challenges directly.

For younger children, the session can be a mix of parent discussion and child involvement so the process feels safe and age appropriate. For teenagers, being part of the consultation often helps them feel included, respected and supported in their own health journey.

Parent involvement is always included, and Jake guides you on the best structure for your child’s age, needs and comfort level.

No. Your child or teenager will not be asked to change everything they eat. Jake’s approach is flexible, realistic and designed to meet young people where they are. The focus is on understanding their current patterns, identifying what is driving their symptoms or challenges, and making targeted adjustments that
feel achievable rather than overwhelming.

Most children and teenagers actually gain more clarity, confidence and predictability around food without needing a complete overhaul.

Changes are introduced gradually, with parent involvement and a clear plan that supports growth, energy, mood and daily functioning while keeping their diet as broad and enjoyable as possible.

The habits formed now shape health for decades.

Clinical nutrition is one of the most overlooked pillars in supporting the health of children and teenagers. Jake’s world‑class expertise in paediatric nutrition allows your child or teenager to rebuild optimal nutritional status, strengthen long‑term health, and establish the foundations for lifelong wellbeing.

Other ways Jake can help

School Wellbeing

Nutrition education and wellbeing programs for schools, empowering students, staff, and families with lifelong healthy habits.

Sports Nutrition

Performance nutrition for athletes and active teams, optimise training load, recovery, and body composition.

Clinical Nutrition

Individual clinical nutrition programs for employees dealing with gut health, diabetes, or other health conditions.

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