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  • IBS Nutritionist in sydney

Heal your IBS. Reclaim your life.

Chronic bloating, abdominal pain, constipation cycles, and explosive diarrhoea impacts every part of your day. As an IBS nutritionist, Jake Biggs provides IBS nutrition therapy that identifies the real drivers of your symptoms and eliminates your IBS through personalised IBS gut health nutrition plans.
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  • Clinical-grade care
    Honours-level qualifications
  • Gut health nutritionist expert
    Real, lasting outcomes
  • In-person & Telehealth
    Bondi Junction & globally

5.0 Rating

From 140+ verified reviews

Chronic Bloating Abdominal Pain Constipation Cycles Explosive Diarrhoea Poor Gut Health Chronic Bloating Abdominal Pain Constipation Cycles Explosive Diarrhoea Poor Gut Health Chronic Bloating Abdominal Pain Constipation Cycles Explosive Diarrhoea Poor Gut Health Chronic Bloating Abdominal Pain Constipation Cycles Explosive Diarrhoea Poor Gut Health
  • IBS PREMIUM NUTRITIONAL TreatMENT

Specialist nutrition care for IBS

Jake works across the full spectrum of IBS presentations each with a dedicated, evidence based nutrition approach.

  • Most Common

Irritable Bowel Syndrome (IBS)

Personalised IBS nutrition therapy that targets chronic bloating, abdominal pain, constipation cycles and unpredictable IBS.

  • Often Misdiagnosed

IBS Subtypes

Clinical nutrition therapy for IBS C, IBS D and mixed type IBS with tailored strategies that address the specific symptom patterns of each subtype.

  • Gold Standard

IBS Nutrition Therapy

Expert guided IBS nutrition therapy that identifies the real drivers of your symptoms. Evidence based protocols that support gut regulation and improve long term digestive outcomes.

  • Root Cause Focus

IBS Trigger Identification

Systematic identification of IBS triggers including food patterns, stress responses and gut sensitivity. A structured approach that clarifies what your gut can tolerate and expands your diet over time.

  • Complex Care

Chronic IBS Patterns

Support for long standing IBS with persistent bloating, pain and bowel irregularity. Personalised nutrition therapy that restores digestive rhythm and improves daily quality of life.

  • IDENTIFY & TREAT

IBS Symptom Mapping

Comprehensive assessment to map your IBS symptoms and uncover the patterns driving flare cycles. Targeted nutrition therapy that builds stability and supports long term digestive regulation.

  • Why Irritable Bowel Syndrome (IBS) matters

Your gut is the foundation of everything.

The gut microbiome influences immune function, mental health, hormonal regulation, weight management, skin health and energy, yet IBS often leaves people managing symptoms for years rather than resolving the underlying cause.

Jake’s clinical approach starts with a thorough intake including current symptoms, health history, recent investigations, diet and lifestyle and builds a plan specific to your IBS, not a generic protocol pulled from the internet.

Whether you are newly diagnosed with IBS, have tried everything or simply know something is off but have not been given answers, this is the level of IBS care that actually moves the needle.

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1 in 5

Australians have IBS, most wait years for a proper clinical nutrition assessment

70%

Immune system lives in the gut, gut health is foundational to whole body wellbeing

95%

Serotonin is produced in the gut, the gut-brain axis directly shapes mood and cognition

  • Recognise these?

Signs your gut needs clinical support

Chronic bloating

Daily bloating that does not resolve with dietary changes signals increased intestinal permeability.

Abdominal pain

Recurrent pain or cramping that disrupts meals, sleep or daily function indicates active leaky gut patterns.

Constipation cycles

Slow, incomplete or infrequent bowel movements that cycle unpredictably reflect impaired gut motility.

Explosive diarrhoea

Sudden, urgent or watery stools point to gut lining irritation, increased intestinal permeability.

Unpredictable IBS

Your symptoms fluctuate without clear triggers and you cannot identify what your gut can tolerate.

Food intolerance expansion

A growing list of foods causing symptoms indicates worsening gut barrier permeability.

Unpredictable flare cycles

Symptoms that spike without clear triggers show unstable gut regulation driven by gut lining irritation.

Self-management failure

When supplements, diet changes or online protocols fail, it reflects deeper gut‑lining dysfunction.

Experiencing more than two of these? Book a consult →

  • Jake's approach

Clinical IBS nutrition, done properly.

Every IBS client goes through a structured, clinical process, not a one size fits all protocol.

01

Deep-dive intake assessment

A thorough review of your full IBS symptom history, health timeline, current investigations, medications and diet. This is the foundation everything else is built on.

02

Root cause identification

Rather than managing symptoms, Jake looks for the actual driver, whether that is dysbiosis, intestinal permeability, motility dysfunction or a specific food related trigger that keeps your IBS unstable.

03

Personalised IBS nutrition plan

A structured eating plan tailored to your specific IBS presentation, lifestyle, food preferences and budget, not a restrictive template but a liveable clinical strategy.

04

Your IBS goals are the engine of your results

Jake and yourself will define your short and long term IBS goals, and the projections will be built with clinical precision to take you exactly where you want to go.

05

Ongoing monitoring & expansion

Regular reviews to track progress, reintroduce foods and expand dietary freedom, the goal is always the broadest possible IBS diet that keeps you well.

Jake Square

Jake Biggs

  • Accredited Clinical Nutritionist, Bondi Junction, Sydney
  • BHSc Nutrition & Dietetic Medicine (Honours)
  • Accredited clinical & sports nutritionist
  • In-person Bondi Junction & Telehealth globally
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About Jake
  • Client results

Gut health results that speak for themselves

Real clients, real gut health, real outcomes.

GUT HEALTH transformation

"I highly highly endorse Jake as a clinical nutritionist in Bondi Junction, Sydney that specialises in gut health. Jake has completely transformed my gut problems to now none! I came to see Jake as I was really struggling with my gut health. I was having chronic gut issues with bouts of irritable bowel syndrome that was problematic for myself. I had really tried everything but nothing was working for me. I am so glad that I met with Jake! From our first consultation together, I was incredibly impressed with his nutrition knowledge as well as his knowledge in everything related to the human gut. He explained to me exactly the changes that we need to make together and assured that my gut would be healed very quickly. Although skeptical at first, Jake was completely right. With the changes that Jake recommended for me, I now have a healthy gut. I don't have the problems that I had with irritable bowel syndrome. This is all thanks to Jake. Thank you so much. I highly recommend Jake Biggs as a speciality in the field of gut health as a clinical nutritionist."

Ben
Gut Health Client
Gut Health Fixed

"Jake Biggs is an outstanding clinical nutritionist and nutrition coach in Bondi Junction, Sydney. I can’t recommend Jake enough for all that he has done for me. I have been with Jake now for 9 months and the results have simply been phenomenal. I haven’t felt this energised for such a long time, and it is all thanks to Jake and the amazing work he has done for me. I was looking for a nutritionist or dietitian to help me improve my eating habits and overall health. I actually mentioned 9 months ago to a close friend of mine whether he knows or has seen a nutritionist before. Straight away without hesitation, in his words he said “You must see Jake Biggs in bondi junction”. Without flinching I contacted Jake and the rest is history. Jake provides such outstanding and detailed treatment plans that I feel privileged that he has worked with me. I haven’t felt this energised in years, I have had previously chronic gut issues and sleep problems. Jake in 9 Months has not only improved my gut and sleep but I now have no issues anymore with my gut and sleep. He has been simply outstanding for me and can’t thank him enough. Has totally transformed my health and well-being. Thanks again Jake".

Dan
Gut Health Client
Gut Health Optimisation

"Jake is a very genuine knowledgeable bloke. I’ve had gut problems on and off my whole life and within a couple of weeks he’s helped me eliminate a lot of old misguided food/supplement habits and formulate a nutrition plan to get me back on track. Gut problems sorted, energy levels back to normal, highly recommend!".

Jesse
Gut Health Client
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  • Free Gut Health Guide

The 5 Day Gut Reset Plan

  • Day by day meal structure to calm gut inflammation
  • Foods to eat, foods to avoid, and exactly why
  • Do supplements actually help or hinder gut health?
  • Jake's simple morning routine for optimal gut motility
  • When to seek professional clinical gut health help vs self manage

3,200+

downloads

  • Free Guide

Optimise your gut health today.

Download Jake’s most popular gut health free guide: a practical, science-backed reset for achieve optimal gut health. No fads, only what actually works.

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  • FAQ

IBS nutritionist questions, answered.

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

No, you do not need a formal gut health diagnosis to book. Many clients come in with bloating, abdominal discomfort, irregular bowel habits or unresolved digestive symptoms without a clear label. Jake will conduct a thorough intake, review any existing investigations and may recommend further testing where appropriate. A diagnosis helps, but it is not required to get started.

A gastroenterologist manages the medical and diagnostic aspects of IBS, while Jake builds a personalised nutrition strategy that restores gut function, reduces inflammation and stabilises daily IBS symptoms. They work differently, and many clients choose to work with both for the most complete care.

No, you will not be placed on a highly restricted diet. Jake’s approach is structured, personalised and clinically guided, but it is designed to be sustainable and flexible. The goal is to support gut function, calm inflammation and stabilise IBS symptoms while keeping your diet as broad and enjoyable as possible. Most clients actually gain more dietary freedom over time, not less.

Most clients begin noticing meaningful changes within the first few weeks. Improvements often include better energy, more stable IBS digestion, reduced bloating and clearer structure around what their gut needs.

Gut healing itself evolves over time, but the behaviours that drive better motility, reduced inflammation and IBS symptom relief begin shifting almost immediately. Jake monitors your progress closely and adjusts your plan so you continue moving forward with confidence.

Yes, Jake can work alongside your GP or gastroenterologist. A GP provides broad medical oversight and a gastroenterologist manages the diagnostic and medical aspects of IBS, while Jake focuses on the nutritional, behavioural and functional drivers behind your symptoms. Many clients work with both, especially when there are ongoing investigations, complex IBS symptoms or no explanation for why their gut has become unstable.

  • Ready to fix your IBS, for good?

Stop managing IBS symptoms. Start resolving them.

Jake combines world class expertise as an IBS nutritionist with extensive experience supporting both younger clients with emerging IBS symptoms and adults already managing chronic IBS patterns. His approach gives clients a clear clinical advantage built on precision, science and measurable results.

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Sustainable weight loss nutrition plans to achieve your goal weight and keep it for the rest of your life.

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