As a weight gain nutritionist, Jake provides customised nutrition plans for children, teenagers, and adults to promote healthy weight gain for optimal health and development.
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Jake works across the full spectrum of weight gain presentations, delivering personalised, evidence-based nutrition plans.
Healthy Weight Gain Nutrition Plans
Personalised nutrition plans designed to support healthy weight gain, improve energy intake and promote sustainable increases in body weight, muscle mass and overall nutritional status.
Underlying Causes of Low Weight
Comprehensive assessment of factors contributing to low body weight including poor appetite, gastrointestinal symptoms, high energy expenditure, medical conditions and dietary inadequacies.
Evidence Based Weight Gain Strategies
Clinical nutrition interventions that increase calorie and protein intake while supporting digestive comfort, nutrient adequacy and long term weight gain success.
Weight Gain Barrier Identification
Systematic identification of obstacles to weight gain including appetite challenges, food intolerances, eating patterns, training demands and lifestyle factors.
Underweight & Malnutrition Support
Specialised nutrition care for individuals experiencing long term underweight, unexplained weight loss or difficulty maintaining a healthy body weight despite adequate food intake.
Growth & Weight Gain Assessment
Comprehensive assessment to evaluate growth, body weight trends, dietary intake and nutritional requirements. Targeted nutrition strategies designed to optimise healthy weight gain and support long term health outcomes.
Maintaining a healthy body weight plays an important role in supporting energy levels, physical performance, immune function and overall wellbeing. Being underweight can affect muscle mass, strength, recovery, growth and nutritional status, making everyday activities more challenging and increasing the risk of nutrient deficiencies.
Jake’s clinical approach as a weight gain nutritionist begins with a comprehensive assessment of your current body weight, dietary intake, appetite, medical history, activity levels and lifestyle factors. From there, he develops a personalised nutrition strategy designed to support sustainable weight gain rather than relying on generic advice or excessive calorie loading.
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Body weight gain can be enhanced through structured nutrition and resistance training programs
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Sustainable weight gain outcomes depend on maintaining an adequate energy surplus over time
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Daily recovery and growth is supported through meeting energy and protein requirements consistently
Difficulty Gaining Weight
Despite eating regularly, your body weight remains low or increases very slowly, suggesting a need for a more targeted nutrition strategy.
Low Appetite
Poor appetite makes it difficult to consistently consume enough energy and nutrients required for healthy weight gain and recovery.
Unexplained Weight Loss
Ongoing weight loss or difficulty maintaining weight may indicate underlying nutritional, digestive or lifestyle factors requiring assessment.
High Energy Demands
Sport, physical activity, rapid growth or a physically demanding lifestyle can significantly increase energy requirements beyond current intake.
Low Muscle Mass
Limited muscle development despite training often reflects inadequate energy, protein or recovery strategies that can be addressed through nutrition.
Poor Growth & Development
Children and teenagers who are not meeting expected growth or weight milestones may benefit from structured nutrition support to optimise development.
Recovery Difficulties
Slow recovery from exercise, illness or injury may indicate insufficient energy and nutrient intake to support tissue repair and growth.
Nutrition Strategy Not Working
When increasing portion sizes or eating more frequently fails to produce results, a personalised and evidence-based approach is often required.
Experiencing more than two of these? Book a consult →
Every weight gain client goes through a structured, clinical process, not a one-size-fits-all protocol.
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Deep-dive intake assessment
A thorough review of your weight history, dietary intake, appetite patterns, training load, digestive health, current investigations, medications and lifestyle. This is the foundation everything else is built on.
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Root cause identification
Rather than simply increasing calories, Jake looks for the underlying reasons preventing weight gain, whether that is inadequate energy intake, poor appetite, digestive concerns, high energy expenditure, nutrient deficiencies or chronic health conditions.
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Personalised weight gain nutrition plan
A structured eating plan tailored to your calorie requirements, food preferences, lifestyle, training schedule and budget, designed to support sustainable weight gain without relying on unhealthy eating habits.
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Your weight gain goals are the engine of your results
Jake and yourself will define your short and long-term weight gain goals, whether that is increasing body weight, building muscle mass, improving strength or supporting recovery, with clear projections built around your targets.
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Ongoing monitoring & expansion
Regular reviews to track progress, adjust nutrition strategies, overcome plateaus and ensure continued weight gain. The goal is always to build long-term habits that support healthy body composition and lasting results.
Jake Biggs
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Yes. While some people are naturally lean, long-term difficulty gaining weight can also be influenced by appetite, dietary intake, training volume, digestive health, lifestyle factors or underlying health conditions. Jake takes a clinical approach to identify the key barriers and develop a personalised strategy to support healthy weight gain.
Successful weight gain is about more than increasing calories. Jake assesses your calorie requirements, food quality, meal timing, appetite, digestive health and lifestyle to create a structured plan that supports sustainable weight gain and long-term health outcomes.
No. Jake focuses on practical and sustainable nutrition strategies that fit your lifestyle, appetite and food preferences. The goal is to increase calorie intake in a way that feels realistic and manageable rather than overwhelming or restrictive.
Results vary depending on your starting point, calorie intake, metabolism, activity levels and overall health. Many clients begin to see progress within the first few weeks, but healthy weight gain is typically a gradual process that prioritises long-term success over rapid short-term changes.
Yes. If you have a medical condition, history of unexplained weight loss or ongoing health concerns, Jake can work alongside your GP and other healthcare providers to ensure your nutrition plan supports your broader health goals and medical care.
Jake combines world-class expertise as a weight gain nutritionist with extensive experience supporting teenagers, athletes, busy professionals and adults who have struggled to gain weight for years. His approach helps clients increase body weight, build muscle mass and improve energy levels through personalised nutrition strategies grounded in science, precision and measurable results.
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