Losing weight without trying, a fading appetite, or feeling weaker and more tired than usual can all be signs that your body isn’t getting the nourishment it needs. Malnutrition and unintentional weight loss are common — especially with ageing, illness, or recovery from surgery — and they respond well to the right nutrition support. Our Accredited Practising Dietitians provide personalised, evidence-based care to help you rebuild strength and eat well, working alongside your GP and wider care team.
- ✓ Six Melbourne clinics, home visits and telehealth across Australia
- ✓ Team of eight APDs who case-conference on complex presentations
- ✓ Validated malnutrition screening and individualised assessment
- ✓ Medicare (with a GP referral), NDIS, DVA, WorkCover and private health accepted
What Is Malnutrition?
Malnutrition happens when the body doesn’t get enough energy, protein, or nutrients to function and repair itself well. It’s easy to assume malnutrition only affects people who look visibly underweight, but that isn’t the case — someone can be living in a larger body and still be malnourished if they’re not getting the nutrition their body needs. There are broadly two overlapping pictures:
- Energy and protein undernutrition — not enough overall kilojoules or protein, often leading to unintentional weight loss, muscle loss, and reduced strength
- Micronutrient deficiency — low levels of specific vitamins or minerals, such as iron, vitamin B12, or vitamin D, even when overall food intake seems adequate
Left unaddressed, malnutrition can slow recovery from illness, weaken the immune system, reduce muscle strength and increase the risk of falls. The encouraging news is that it’s very treatable with the right, individualised nutrition support.
Unintentional Weight Loss — When It’s a Concern
Weight loss you didn’t plan for is different from weight loss you’re working towards. If the kilos are coming off without any change to your eating or activity — particularly if your appetite has dropped or clothes are getting loose — it’s worth paying attention to, because it can be an early sign of malnutrition or an underlying health issue.
This page is about the opposite of a weight-loss diet. If you’re looking to lose weight intentionally and sustainably, our Weight Loss & Management service is the right place to start. This page is for people who are losing weight, appetite or strength without meaning to, and want to rebuild it.
Common signs worth raising with your GP or dietitian include:
- Clothes, rings or dentures becoming looser
- A noticeably smaller appetite, or feeling full very quickly
- Skipping meals because cooking or eating feels like too much effort
- Feeling weaker, more tired, or more prone to illness than usual
- Recovering slowly from an illness, infection or surgery
Unexplained weight loss should always be checked by your GP first, to rule out any underlying medical cause. From there, a dietitian helps rebuild your intake, strength and confidence with food.
Who Is Most at Risk?
Malnutrition and unintentional weight loss can affect anyone, but some groups are at higher risk:
- Older adults, particularly those living alone or in residential aged care
- People recovering from surgery, cancer treatment, or a long hospital stay
- Those living with chronic conditions such as chronic kidney disease, heart failure, or dementia
- People with swallowing difficulties, poor dental health, or reduced appetite from medications
- Anyone with a condition affecting how the body absorbs nutrients, such as coeliac disease or inflammatory bowel disease
Malnutrition is more common than many people realise. An Australian study of residential aged care facilities published in 2024 found that around 40% of residents were malnourished — a reminder that it often goes unnoticed, even in care settings.
How We Screen & Assess for Malnutrition
Identifying malnutrition early makes a real difference. We use validated screening and assessment tools rather than guesswork, so your care is based on a clear picture of where things stand.
- MST (Malnutrition Screening Tool) — a quick, validated screen based on recent unintentional weight loss and appetite. It’s the most widely used screening tool in Australia
- MUST (Malnutrition Universal Screening Tool) — a screen that also factors in body mass index and the effect of any acute illness
- SGA (Subjective Global Assessment) — a fuller, dietitian-led assessment that looks at weight history, intake, symptoms, and physical signs to confirm nutritional status
Screening tells us whether you may be at risk; assessment confirms the picture and shapes your plan. Which tool we use depends on your situation — and if screening flags a concern, we move to a full assessment and a tailored plan from there.
Iron Deficiency & Anaemia
Iron deficiency is one of the most common nutritional deficiencies, and it often travels alongside malnutrition or a limited diet. When iron stores drop low enough, the body can’t make enough healthy red blood cells to carry oxygen — a condition called iron deficiency anaemia, which can leave you tired, short of breath, and struggling to concentrate.
Diagnosis and any need for supplements or infusions sit with your GP, guided by blood tests. As your dietitian, we help you get more from the iron in your food and support your levels over the long term by focusing on:
- Haem iron from animal sources such as red meat, poultry and fish, which the body absorbs readily
- Non-haem iron from plant sources such as legumes, wholegrains, tofu and leafy greens — especially important for vegetarian and vegan eating
- Absorption boosters, like pairing iron-rich foods with vitamin C, and understanding which foods and drinks (such as tea and coffee with meals) can block absorption
If you follow a plant-based diet and want to protect your iron levels, our Plant-Based Dietitian service works hand in hand with this care.
Home Enteral Nutrition & Tube Feeding Support
For some people, eating enough by mouth isn’t possible — because of swallowing difficulties, certain cancers, neurological conditions, or recovery from major surgery. Home enteral nutrition (feeding through a tube, such as a PEG or nasogastric tube) allows nourishment to continue safely at home, and our dietitians support people living with it and the families and carers who help.
- ✓ Tailoring feed type, volume and schedule to individual needs and tolerance
- ✓ Supporting the transition from hospital to feeding at home
- ✓ Practical guidance and reassurance for family members and carers
- ✓ Managing any transition back towards oral eating where and when that’s appropriate
We work alongside your medical team, hospital, and any home nursing or home enteral nutrition service already involved in your care — complementing that support, not replacing it. Home enteral nutrition is often funded through NDIS or, for eligible older Australians, aged care support — see our Support at Home Dietitian and NDIS Dietitian pages for how this works.
Our Approach to Rebuilding Nutrition
We start with a thorough assessment — your medical history, recent weight changes, appetite, eating patterns, any symptoms affecting your intake, and your blood results. From there, we work with you to agree practical goals and milestones that fit your life, energy and preferences, and review them regularly as your strength and intake improve.
Depending on what you need, your plan might include food-first strategies to add energy and protein without adding volume, ideas for eating well when appetite is low, guidance on oral nutrition supplements where helpful, texture-modified options for swallowing difficulties, or support with home enteral nutrition. Throughout, we share information with your GP and care team, with your consent, so everyone is working towards the same goals.
Malnutrition Support From Our Whole Team
Experienced Across Complex Needs
Several of our dietitians — including Isabella, Kineta and Simon — have particular experience in malnutrition, unintentional weight loss, and home enteral nutrition across aged care, disability and clinical settings. Complex presentations benefit from our in-house case-conferencing, where your dietitian can bring in the Principal Dietitian or a colleague for a same-week second opinion.
Recognised for Quality Care
NutriBlooms received the Dietitians Australia and Griffith University Quality in Primary Care Award in 2025, recognising excellence in patient-centred, evidence-based dietetic care.
Funding, Fees & Referrals
Since 1 July 2025, a single GP Chronic Condition Management Plan (GPCCMP) replaced the old GP Management Plan and Team Care Arrangements. Your GP can now refer with an ordinary referral letter, and you may be eligible for up to 5 subsidised individual allied health visits per calendar year, shared across all your allied health providers. Read more on the Services Australia GPCCMP page.
NutriBlooms is not a bulk-billing clinic — Medicare pays a rebate under a valid GPCCMP, and a gap fee applies. We also accept NDIS, DVA, WorkCover, Support at Home funding, and private health extras cover. See our Referrals and Claiming page for full details.
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Frequently Asked Questions
What’s the difference between this and your weight loss service?
They’re opposites. Our Weight Loss & Management service is for people who want to lose weight intentionally. This page is for people losing weight, appetite or strength without meaning to — for example through ageing, illness or recovery — and who want to rebuild it. If you’re not sure which fits your situation, we can help you work that out at your first appointment.
Can you be malnourished if you’re not underweight?
Yes. Malnutrition is about whether your body is getting enough energy, protein and nutrients — not about body size. Someone in a larger body can still be malnourished if their intake is inadequate or they’re low in key nutrients, which is why proper screening and assessment matter.
Should I see my GP before booking a dietitian?
For unexplained weight loss, yes — it’s important your GP checks for any underlying medical cause first. Once that’s underway, a dietitian helps rebuild your intake, strength and confidence with food. You can see us with or without a GP referral, though a referral may make you eligible for a Medicare rebate.
How do you check whether someone is malnourished?
We use validated tools rather than guesswork. A quick screen such as the MST or MUST flags whether you may be at risk, and if needed we follow up with a fuller dietitian-led assessment (the SGA) that looks at weight history, intake, symptoms and physical signs to confirm the picture and shape your plan.
Can a dietitian help with iron deficiency?
Yes. Your GP diagnoses iron deficiency and decides on any supplements or infusions through blood tests, and as your dietitian we help you get more iron from your food and protect your levels over time — including tailored support if you follow a vegetarian or vegan diet.
Do you support people on tube feeding at home?
Yes. We support people living with home enteral nutrition, along with their families and carers — tailoring the feed, supporting the move from hospital to home, and helping with any transition back to eating by mouth where appropriate. We work alongside your medical and home nursing team, not in place of them.
Is there a gap fee, and what funding options are accepted?
NutriBlooms is not a bulk-billing clinic, so a gap fee applies alongside your Medicare rebate under a GP Chronic Condition Management Plan. We also accept NDIS, DVA, WorkCover, Support at Home funding and private health extras cover — see our Referrals and Claiming page for full details.
Rebuild Your Strength With Expert Support
If you or someone you care for is losing weight, appetite or strength without meaning to, our Accredited Practising Dietitians can help — across six Melbourne clinics, home visits, and telehealth Australia-wide.