
What Is Sustainable Weight Loss?
In my years as a sustainable weight loss nutritionist working with hundreds of weight loss clients, I find that the most effective and efficient way to lose weight and keep it off is a long
FREE GUIDE: Download “The 5-Day Gut Reset Plan” – our most popular resource
Nourish Your Body, Transform Your Life.
Personalised nutrition coaching backed by clinical science. Jake Biggs has helped hundreds of clients achieve lasting health, their goal weight, and peak performance, with real food, real results.
EXCELLENT Based on 140 reviews Posted on Google G HTrustindex verifies that the original source of the review is Google. I needed help. My weight had plateaued and I was stuck and desperate. My specialist told me I had to find a nutritionist to get me back on track. My daughter did some research and found Jake of Nutrition Longevity. She told me he had the best reviews she’d’ found. The rest is history. Jake helped me to focus on what needed to be done if I was to successfully reach my goal weight. I did what he told me and as long as I did that I had a consistent weekly weight loss. I didn’t count a calorie! I had such a sense of freedom. In 8 weeks I’d lost more than 4kgs. The process continues and I am loving it. Because of what he has taught me I believe I will get to my goal weight and this time NOT regain the weight I lose! Jake is very knowledgeable about nutrition and patient when explaining concepts around it. He has been very encouraging along the way. I’m most grateful. Thanks again Jake!Posted on Google Makayla CraggTrustindex verifies that the original source of the review is Google. Jake has a wealth of knowledge that has really helped me understand sport nutrition. I have been looking at different supplementation for elite sport and Jake has provided great guidance on the benefits and risks of the supplements. He has explained in great detail using his sport nutrition expertise and significantly helped me with understanding how I can benefit myself through sport and be careful surrounding different nutrition strategies. I would definitely recommend him as he is calm, friendly and is extremely helpful through his knowledge.Posted on Google Natalia HenríquezTrustindex verifies that the original source of the review is Google. I decided to work with a dietitian after having my baby, as I was struggling to lose weight through the gym. I chose Jake because he individualized his assessments based on size, which I appreciated—I didn’t want to focus on the number on the scale. The weekly check-ins helped me stay aware of my habits, and Jake’s human approach connected my emotions and experiences with my food choices. What I liked most was that I never felt like I was on a strict diet; it was more holistic and personal. Although I did have to cut out some foods initially, I never felt deprived. In fact, I had more energy because I was eating better nutrients. As a working mom with a small baby and dogs, the plan was tailored to what I had available, making it easy to follow. Jake encouraged me to choose my own foods and offered alternatives, which empowered me to make my own decisions about what to eat. Overall, this plan significantly boosted my self-esteem, and I was able to return to my pre-pregnancy weight in just four months—without any stretch marks and feeling revitalized. I am truly grateful for the support I received and found it easy to communicate with Jake. His approach was very personable, and I consider working with him to be one of my best investments post-pregnancy. I highly recommend him.Posted on Google Ben KramerTrustindex verifies that the original source of the review is Google. Jake was an incredible person to work with, who genuinely cares about all his clients and goes above and beyond to make sure they hit their personal goals.Posted on Google Lisa HTrustindex verifies that the original source of the review is Google. Thanks so much, Jake! This was my first time ever seeing a nutritionist, and you made the whole experience feel easy and approachable from the start. I really appreciated how well you understood me and helped tailor my eating to suit my busy lifestyle and personality. I’m so happy with where I’m at now, and you’ve made everything feel sustainable long term. Thank you also for all the support outside of sessions — answering questions and helping me find specific products at the supermarket made such a difference. I feel like I’m at a healthy weight again and finally feel great in my clothes again. I couldn’t recommend Jake more!Posted on Google John blicqTrustindex verifies that the original source of the review is Google. I worked with Jake on a structured nutrition plan with a clear target in mind. In 2 months, I dropped 7 kg—not through restriction or gimmicks, but through a plan we built together and that he held me accountable to consistently. What stands out is Jake's approach: he doesn't just hand you a meal plan and disappear. He maintains the discipline of the framework while staying responsive to what actually works for your life. That combination of structure and flexibility is rare. If you're serious about nutrition outcomes and need someone who will keep you honest while you do the work, Jake delivers.Posted on Google Mimo SsTrustindex verifies that the original source of the review is Google. I can’t thank Jake enough for all the help and support he’s given me on my weight loss journey. From the very first session, he made me feel completely comfortable and understood. He’s not just knowledgeable he’s genuinely caring, supportive, and always brings such a positive, bubbly energy to every conversation. Thanks to his guidance and encouragement, I’ve managed to lose 9.5kg in just 8 weeks! Highly recommend!!!Posted on Google Sid GirishTrustindex verifies that the original source of the review is Google. Jake is a master of his craft and specifically uses science-based knowledge for your particular nutrition goals. Over the past three months we’ve worked together on sustainable lean mass muscle growth. I’ve experienced steady, consistent, and incremental lean muscle mass gain without gaining unneccessary fat at the same time (the "dirty bulk" approach I had been using in the past) — This is exactly what I was looking for in a sustainable lean muscle mass growth journey. I've looked forward to our fortnightly one-on-one meetings where Jake’s thoughtful and insightful advice has always been carefully tailored to my individual needs. I have seen so much growth as I have put on 3kgs of pure muscle mass in the space of the last 3 months after we came up with an effective training and nutrition plan. Jake is a brilliant communicator and the continuous support he provides even outside of scheduled sessions has helped me tremendously. He’s been instrumental not just in helping me gain weight, but in guiding me to build a sustainable muscle growth plan that fits into my lifestyle long-term, including broader mental and physical strategies that go beyond just nutrition. If you're a male in Sydney looking for an expert in sustainable muscle growth who truly understands how to help you reach and maintain your target weight and cut through all the "industry" noise, then Jake is the one! I could not recommend his services more highly.Posted on Google Lily HTrustindex verifies that the original source of the review is Google. Jake is phenomenal. I had literally tried everything to lose weight and came to him highly skeptical it was even possible. Over 5 months I lost 9 kilos - no calorie counting, just steady, sustainable weight loss. Jake tailored a program for my specific needs that worked! His boundless enthusiasm and passion for what he does made it easy to stick to the program. He was always available for out of session support. I can not recommend Jake highly enough as an expert sustainable weight loss nutritionist- particularly to women who are struggling to make it happen themselves. My only regret is not finding Jake sooner!Posted on Google Matthew PowellTrustindex verifies that the original source of the review is Google. Jake offers a real science-based skillset for sustainable weight loss. I engaged his services to trim down a bit after not making much progress with customary calorie-counting. The goal was to lose weight ambitiously over a 2 month period. Jake’s method proved to be a bit too successful, having basically reached my goal weight in 3/4 of the time! Would recommend Jake to anyone who’s done with fad diets.
Sustainable, non-restrictive weight loss. No calorie counting, restrictive dieting, neglecting your social life, hunger, or weight rebound.
Achieve peak performance with personalised sports nutrition performance plans for optimal energy levels, strength, and recovery.
Evidence-based nutrition therapy for gut health, eating disorders, adrenal fatigue, osteoporosis, menopause, and more.
Jake’s story is one of extreme challenge and transformation. After surviving severe anorexia nervosa and a brain tumour, he didn’t just recover, he rebuilt himself from the ground up and dedicated his life to mastering the evidence-based science of nutrition.
That lived experience, combined with his Bachelor of Health Science (Nutrition & Dietetic Medicine, Honours), means Jake brings both clinical precision and genuine empathy to every client. His approach is proven, practical, and relentlessly results-driven.
FREE EBOOK
The Ozempic Weight Loss Dilemma
Why Ozempic Is a Shortcut to Poor Health, Written by Sustainable Weight Loss Nutritionist Jake Biggs.
Download The Ozempic Weight Loss Dilemma a powerful, evidence-based eBook exposing the dangerous truth about Ozempic and weight loss. You’ll learn:
✔ Ozempic – The Hype and the Reality
✔ The Risks You’re Not Being Told
✔ The Truth About Real Weight Loss
✔ How To Formulate Your Sustainable Weight Loss Plan
Enter your details to get instant access:
Unlock Your Peak Performance with Expert Sports Nutrition Knowledge by Jake Biggs, Sports Nutritionist.
Download The Secret Formula to Sports Nutrition eBook, a powerful evidence-based sports nutrition guide that illustrates:
✔ The Foundations of Sports Nutrition
✔ Season-Specific Nutrition Strategies
✔ Sport Specific Supplements That Work
✔ Personalised Sports Nutrition Performance Plan
Enter your details to get instant access:

In my years as a sustainable weight loss nutritionist working with hundreds of weight loss clients, I find that the most effective and efficient way to lose weight and keep it off is a long

In my years of working with hundreds of sports nutrition clients, optimal performance can only exist with optimal sports nutrition. The role of a sports nutritionist is essential to achieve peak performance for any client.

The best foods for brain health that I incorporate with my clients include eggs, dark chocolate, broccoli, blueberries, salmon, walnuts, tumeric, and oranges. When it comes to maintaining optimal brain health, the foods we consume
A: No GP referral is required before booking an initial consultation with Jake. He works collaboratively with all healthcare professionals who refer patients to him. A referral can be provided if you already have one, but it is not a prerequisite for booking.
Yes, absolutely. Jake wants to ensure he is the perfect fit for you, and you are welcome to contact him directly on his mobile at +61 435 665 779 for a complimentary discovery call. If he does not answer, he will be with a client and will return your call at his earliest convenience. You are also welcome to email him at jake@jakebiggs.com.au.
A: You can book your initial consultation with Jake directly through the website’s booking portal link here. If you’d like to ask questions first or confirm whether you are the right fit, you’re welcome to contact Jake on his mobile at +61 435 665 779 or his email address jake@jakebiggs.com.au.
A: Jake specialises in three core areas: Sustainable weight loss, sports nutrition, and clinical nutrition. Jake creates personalised, evidence-based plans for permanent weight loss, peak sports performance, and address a wide range of health-related goals or medical conditions.
A: As a nutritionist, Jake provides a level of personalisation, clinical depth, and strategic support that clients have never experienced before. Jake’s work blends the behavioural strategy for sustainable weight loss, peak performance insight of sports nutrition, and the precision of personalised clinical nutrition. This gives you a comprehensive, results‑driven approach that is tailored entirely to you. This is not quick‑fix approach. It is a tailored, clinically informed road map designed to create real, measurable, long‑term change. It gives you the clarity, strategy, and expert guidance needed to finally achieve the results you have been working toward.
A: The initial consultation is structured, detailed, and highly personalised. Jake’s three main consultation offerings are Sustainable Weight Loss, Sports Nutrition & Clinical Nutrition.
The initial consultation is $220.00AUD/60 minutes, Jake’s personalised plan is built into the consultation fee, meaning you receive everything you need without any additional charges.
A: Yes. Sydney residents can see Jake in person at his Bondi Junction private clinic. Jake also offers online consultations via FaceTime or phone call.
A: No. Strict diets are not sustainable and lead to burnout, unhealthy relationship with food, increased obsessionality and anxiety, rebound eating, or frustration. Instead, Jake builds a plan that aligns with your lifestyle, routines, culture, schedule, preferences, and goals. Your plan will focus on structure, balance, behaviour change, and long-term sustainability, not restriction.
A: Yes. Jake offers both single sessions and long‑term packages. Single sessions are ideal for one‑off assessments or creating an initial plan, while packages ranging from 2 to 12 months provide the structure for ongoing accountability, behaviour change, and deeper support. Every option is fully personalised, and together you and Jake will select the approach that best aligns with your goals and needs.
A: Every client is unique. There is no one-size-fits-all timeline. Jake’s role as your nutritionist is to design the right number of sessions to help you reach your goals, while providing ongoing coaching for accountability and direction. Jake is here to support you at every step, so you can achieve and maintain your optimal health with confidence and consistency. Reaching and maintaining your short term and long term goals is a key focus together, Jake designs the right number of sessions to achieve that.
A: Jake as a weight loss nutritionist, offers a level of personalisation, clinical insight, and long‑term strategy that goes far beyond standard weight‑loss advice. Jake doesn’t rely on restrictive dieting, generic meal plans, or quick‑fix methods. He takes the time to understand your metabolism, behaviours, lifestyle, and challenges so Jake can create a sustainable, results‑driven plan tailored specifically to you. Jake’s approach blends the precision of a clinical nutritionist with the behavioural strategy of a sustainable weight loss nutritionist, giving you clarity, structure, and support at every step. You’re not just following a plan, you’re learning how to transform your habits, your relationship with food, and your long‑term health.
A: As your sports nutritionist, Jake offers a level of personalisation, clinical insight, and performance‑focused strategy that goes far beyond standard sports nutrition advice. Jake takes the time to understand the unique needs of your teenager or yourself, so Jake can design a plan that optimises performance. As a sports nutritionist, you’re not given generic fuelling tips; you’re supported with a tailored, evidence‑based sports nutrition plan that helps your teenager or yourself reach peak strength, speed, stamina, recovery, fitness, endurance, and overall performance.
A: As a clinical nutritionist, Jake offers a level of personalisation, clinical depth, and genuine care that goes far beyond what most people experience elsewhere. Jake doesn’t provide generic meal plans or surface‑level advice. Jake takes the time to understand your symptoms, your lifestyle, your challenges, and your goals so Jake can design a tailored, evidence‑based plan that finally delivers the results you’ve been searching for. Jake’s clients choose him because he is thorough, invested, and committed to helping you achieve lasting change, not temporary improvements. When you work with Jake as your clinical nutritionist, you receive clarity, structure, and a clear roadmap that empowers you to transform your health with confidence.
A: As a sustainable weight loss nutritionist, Jake focuses on realistic, maintainable strategies that help you lose weight without restriction, confusion, or overwhelm. His approach is grounded in evidence‑based nutrition, metabolic support, and behaviour change principles, ensuring every recommendation fits naturally into your lifestyle rather than forcing you into rigid rules or unsustainable dieting.
Jake personalises every plan to your routine, preferences, and challenges, giving you a clear structure that feels achievable and enjoyable. You learn how to stabilise your energy, regulate hunger, build consistent habits, and create long‑term weight loss results that last permanently. The goal is not just losing weight but transforming the way you eat, think, and feel so you can maintain your results with confidence.
A: As a sustainable weight loss nutritionist, Jake helps you build balanced, enjoyable habits that support weight loss without rigid rules or deprivation. His approach is grounded in evidence‑based nutrition, metabolic regulation, and behaviour change science, ensuring that every strategy feels realistic, flexible, and aligned with your lifestyle. Instead of relying on willpower or restrictive dieting, you learn how to nourish your body, stabilise your energy, and create a way of eating that feels natural and sustainable.
Jake works closely with you to personalise every element of your plan, taking into account your routine, preferences, challenges, and long‑term goals. You receive clear structure, practical tools, and ongoing guidance that help you build consistency, regulate hunger, and develop habits that last. The focus is not just on losing weight but on transforming your relationship with food so you can maintain your results confidently and permanently.
A: As a sports nutritionist, Jake takes a personalised, evidence‑based approach that identifies exactly what your teenager or yourself need to perform at your best. He conducts a thorough assessment of training load, energy demands, fuelling timing, hydration strategy, sleep quality, recovery habits, and overall lifestyle pressures to understand the full context influencing performance.
Jake then integrates this information to design a structured, sport‑specific plan that aligns nutrient timing, macronutrient balance, hydration protocols, and recovery nutrition with the physical and cognitive demands of training and competition. This approach not only boosts performance, stabilises energy, and accelerates recovery, but also supports long‑term consistency, resilience, and confidence in a safe, sustainable, and highly practical way.
A: As a clinical nutritionist, Jake looks closely at your symptoms, medical history, lifestyle patterns, and daily routines so he can understand exactly what your body needs and tailor your plan accordingly. He examines how your nutrition, stress levels, sleep quality, digestion, hormones, and energy patterns interact, identifying the underlying drivers of your symptoms rather than treating them in isolation.
This comprehensive assessment allows Jake to create a personalised, clinically informed plan that supports your physiology, restores balance, and helps you achieve long‑term, sustainable improvements in your health and wellbeing.
A: As your nutritionist, Jake works with children, teenagers, young adults, adults, and the elderly, tailoring his approach so each age group receives guidance that is appropriate, effective, and aligned with their individual needs.
For children, he focuses on supporting growth, energy, digestion, and the development of healthy lifelong habits in a gentle, family‑centred way.
With teenagers, he addresses rapid growth, hormonal changes, academic pressure, sports performance, and emotional wellbeing, providing structure that helps them stabilise appetite, improve energy, and build confidence around food.
For young adults and adults, Jake considers stress, work demands, metabolism, hormones, sleep, and long‑term health goals to create personalised strategies that fit real‑world routines.
With older adults, he supports bone health, muscle maintenance, digestion, cardiovascular health, and healthy ageing through targeted, clinically informed nutrition.
Across every life stage, Jake’s goal is to understand the unique physiological, behavioural, and lifestyle factors at play and design a plan that delivers meaningful, sustainable improvements in health and wellbeing.
A: Jake provides private health fund rebates for Australian residents with selected health funds and eligible premiums. This allows many clients to claim a portion of their consultation fees depending on their individual level of cover. At this stage, Medicare rebates are not available, so all consultations are billed privately. If you’re unsure about your eligibility, Jake can guide you on how to check your specific health fund and level of extras cover.
Private Practice Location
Jake Biggs as an accredited clinical nutritionist, sports nutritionist, and weight loss nutritionist practices from his Bondi Junction nutrition clinic which is easily accessible from all parts of Sydney’s Eastern Suburbs, including Bondi, Bronte, Clovelly, Coogee, Dover Heights, Paddington, Queens Park, Randwick, Rose Bay, Vaucluse and Woollahra.
Train/Bus:
The clinic is a 2-minute walk from Bondi Junction station on the T4 Eastern Suburbs & Illawarra Line, and directly adjacent to the Bondi Junction bus interchange.
Car:
The clinic sits opposite Westfield Bondi Junction, which offers 2 hours of free parking.
Online Consultations:
Jake also offers consultations via FaceTime or phone call for clients across Sydney, and worldwide.
Wherever you are, exceptional nutrition support is accessible.