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Digestive health

Inflammatory Bowel Disease

Inflammatory bowel disease is ongoing inflammation of the digestive tract, and the two main forms are Crohn's disease and ulcerative colitis. Our dietitians help you eat well in flares and in remission.

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Understanding the condition

Inflammatory bowel disease (IBD) is ongoing inflammation of the digestive tract. The two main forms are Crohn's disease, which can affect any part of the tract and the full thickness of the bowel wall, and ulcerative colitis, which affects only the large bowel and its surface lining.1,2 Symptoms come and go, with flares alternating with quieter periods called remission.1 Both usually first appear in people in their twenties and thirties, and Australia has one of the highest rates of IBD in the world.1

Medicines from your gastroenterologist control the inflammation, and PDC clinicians do not diagnose IBD or prescribe for it. Most people with IBD are advised to follow the Australian Guide to Healthy Eating rather than a special diet, because research into IBD specific diets is still developing.2 Nutritional deficiencies are common, so iron, calcium and some vitamins may need checking and supplementing on your doctor's advice.1,2 Exclusive enteral nutrition, a completely liquid diet used for about six to eight weeks, is one option your gastroenterologist may use in active Crohn's disease.1

Anaemia is common in IBD, from blood loss through inflamed bowel, from inflammation itself, and from reduced absorption of iron, vitamin B12 and folate.3 Crohn's and Colitis Australia is clear that anaemia should always be managed by your doctor or gastroenterologist, while an IBD dietitian works on food sources and on the drinks that block iron absorption.3 Weight bearing exercise is also encouraged, because bone density can fall with chronic inflammation and steroid treatment.2

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Inflammatory Bowel Disease

What to look out for, and how we help

Symptoms are a guide, not a diagnosis. Your GP confirms the diagnosis; our team helps you manage it day to day.

What you might notice

  • Diarrhoea, often with urgency, and sometimes mucus or blood in your stool
  • Abdominal pain and cramping
  • Tiredness, reduced appetite and weight loss you did not plan
  • Mouth ulcers, fever, or pain and swelling around the anus
  • Symptoms that settle for months and then flare again
  • Red flag: go to your nearest hospital emergency department straight away if you have abdominal pain and cannot pass stool or wind, or if pain and cramping are increasing and you are vomiting, because this can be a bowel obstruction.1,4 Heavy bleeding from your back passage with severe abdominal pain, fever, nausea or an inability to pass a bowel motion also needs an emergency department, and if you faint or have signs of shock such as dizziness, rapid shallow breathing or confusion, call 000 for an ambulance.5

How our team helps

  • Accredited Practising Dietitian consultations that set up what you eat in a flare and what you return to in remission
  • A health and nutrition check covering iron, calcium and vitamin intake, with findings written back to your GP and gastroenterologist for testing and prescribing decisions
  • Pharmacist medication support, so you understand your IBD medicines, their timing and their effect on nutrients
  • ESSA accredited exercise physiology, one to one or in a group, including weight bearing work for bone strength
  • Telehealth across all disciplines, so a flare or a long drive does not cost you your review
  • NDIS, DVA and WorkCover WA funded appointments, plus services to residential aged care facilities and through Support at Home

Your PDC care team

The teams and services that most often support people with this condition. They work from one shared plan, and one GP referral reaches all of them.

Allied health teams

Dietitian
Dietitian
Allied health team
Dietitian
Personalised nutrition advice from Accredited Practising Dietitians to help manage blood glucose levels, weight management and overall nutritional health.
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Exercise Physiology
Exercise Physiology
Allied health team
Exercise Physiology
Safe, effective exercise programs designed by Accredited Exercise Physiologists for chronic condition management.
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Pharmacy
Pharmacy
Allied health team
Pharmacy
On-site pharmacy services providing expert medication management, diabetes supplies, and health consultations.
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Related services

Related conditions

Terms explained

Plain English explanations for this condition are being added.
See all conditions

Sources and clinical review

This page follows Australian guidance: healthdirect Australia's Crohn's disease and ulcerative colitis information, and Crohn's and Colitis Australia's anaemia in IBD resource developed with GI DREAM.

  1. healthdirect Australia. Crohn's disease. 2024. https://www.healthdirect.gov.au/crohns-disease
  2. healthdirect Australia. Ulcerative colitis. 2024. https://www.healthdirect.gov.au/ulcerative-colitis
  3. Crohn's and Colitis Australia. Anaemia in IBD. 2025. https://crohnsandcolitis.org.au/anaemia-in-ibd/
  4. healthdirect Australia. Bowel obstruction. 2024. https://www.healthdirect.gov.au/bowel-obstruction
  5. healthdirect Australia. Rectal bleeding. 2025. https://www.healthdirect.gov.au/rectal-bleeding
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Common questions

Is there a diet that treats Crohn's disease?
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Exclusive enteral nutrition, a completely liquid diet used for about six to eight weeks, is the one dietary therapy used in active Crohn's disease, and your gastroenterologist decides whether it is right for you. Outside that, most people are advised to eat along the lines of the Australian Guide to Healthy Eating. Highly restrictive diets found online can leave you malnourished without reducing inflammation.

Will a dietitian tell me to cut out foods?
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Not as a starting point. We look at what you are actually eating, what you are losing in a flare, and whether iron, calcium and vitamins are covered. If a short term change is useful, we set a plan to get food back in afterwards.

Why do I keep getting low iron?
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In IBD, iron can be low because of blood loss from inflamed bowel, because inflammation itself interferes with iron use, and because absorption drops when the small bowel is involved. Some medicines also reduce iron and vitamin B12 absorption. Your doctor or gastroenterologist decides on iron tablets or an infusion, and we work on food and on moving tea, coffee and wine away from meals.

Do I need a referral to see a dietitian about IBD?
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You can book a dietitian, exercise physiologist or pharmacist appointment at PDC without a referral. Your GP can tell you whether any Medicare funded allied health visits apply to you, which does need a referral from them. Either way we write back to your GP and gastroenterologist so your care stays joined up.

Can you see me if I live a long way from Perth?
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Yes. We offer telehealth across all our disciplines, which suits IBD reviews well, and it means a flare does not stop you being seen. We also provide services to residential aged care facilities and through Support at Home.

Not sure where to start?

Tell us what is going on and we will point you to the right discipline, or to more than one. Most people start with a single appointment and leave with a plan the rest of the team can see.

Or go straight to a service

Phone (08) 6110 0570 · Medicare, NDIS, DVA and private options across our services

For GPs and health professionals

Referring a patient with this condition?

Send an online referral in under two minutes. One referral reaches every discipline at PDC Health Hub.