The podcast that keeps you up-to-date on all things nuts! Hosted by Nuts for Life Program Manager and Accredited Practising Dietitian Belinda Neville.
Each month, Belinda talks with someone new – from nutrition experts and researchers to nut growers – to find out why there's so much to love about nuts!
Host: Belinda Neville
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Nut consumption and the risk of hypertension - RESEARCH REVIEW SERIES
Tuesday, September 29, 2026 • Duration 09:35
High blood pressure, or hypertension, is one of the world's most common health concerns, affecting more than 1.4 billion people globally. In Australia, around 39% of adults are estimated to have hypertension - equivalent to approximately 7.2 million people.
Hypertension is also a major contributor to the global burden of disease, accounting for around 7.8% of total disability-adjusted life years.
In this Research Review Series of The Healthy Handful, we take a deep dive into a new systematic literature review and meta-analysis by Metoudi et al., published in the British Journal of Nutrition.
This review provides the most recent assessment of the evidence examining whether nut consumption can influence blood pressure.
Metoudi M, Sadler I, Kassam S, Aune D. Nut consumption and the risk of hypertension: A systematic review and dose–response meta-analysis of prospective studies. British Journal of Nutrition. 2026 Aug 4:1-22. doi: 10.1017/S0007114526108137
In this episode of The Healthy Handful, host Belinda Neville speaks with nutrition researcher Dr Stephanie Nishi about the latest evidence on nuts and cardiovascular health, including findings from a recent systematic review and meta-analysis examining the effects of nut consumption on blood lipids.
Together, they explore the role of nuts in improving cardiovascular disease risk factors, including LDL-cholesterol, total cholesterol and triglycerides. Stephanie discusses the unique combination of nutrients and bioactive compounds found in nuts, the biological mechanisms underpinning their cardioprotective effects, and what the evidence tells us about the dose, duration and population groups most likely to benefit.
This episode provides a practical, evidence-based update for health professionals on one of the most robust and well-established areas of nut nutrition research, and reinforces the role of a daily handful of nuts as part of a heart-healthy eating pattern.
Key take-outs:
Regular nut consumption is associated with significant improvements in blood lipids, including reductions in LDL ('bad') cholesterol and total cholesterol.
Nuts contain a unique combination of unsaturated fats, plant protein, fibre, vitamins, minerals and bioactive compounds that work together to support cardiovascular health.
The latest evidence reinforces the role of nuts as an important component of heart-healthy dietary patterns and cardiovascular disease prevention strategies.
Stephanie Nishi is a Registered Dietitian, Researcher, and Educator. She is an Assistant Professor with the School of Nutrition, Faculty of Community Services, at Toronto Metropolitan University in Canada. She was a CIHR Postdoctoral Fellow with the Unitat de Nutrició, Departament de Bioquímica i Biotecnologia at the Universitat Rovira i Virgili in Spain, following completion of a PhD at the University of Toronto in Canada.
Food for thought - Eating for brain health: Episode 60
Episode 60
Tuesday, July 28, 2026 • Duration 33:18
Dementia is one of Australia's greatest health challenges, with a profound impact not only on those living with the condition, but also on families, carers and the broader healthcare system.
While age remains the greatest risk factor, growing evidence shows that lifestyle - including what we eat - can play an important role in supporting brain health and reducing dementia risk.
In this episode of The Healthy Handful, host Belinda Neville speaks with Professor Catherine Itsiopoulos - one of Australia's leading experts in nutrition and the Mediterranean diet - about the relationship between diet, brain health and dementia prevention.
Together, they explore why healthy dietary patterns matter for maintaining cognitive function, the evidence supporting the Mediterranean diet, and how foods such as nuts, extra virgin olive oil, vegetables, legumes, whole grains and fish work together to nourish the brain.
Catherine also discusses how diets rich in highly-processed foods, saturated fats and added sugars may contribute to inflammation, vascular damage and cognitive decline over time.
Key takeaways:
Cognitive decline and the risk of dementia can be reduced by at least a third through modifiable risk factors.
The Mediterranean dietary pattern is one of the best-studied eating patterns for promoting brain health and reducing the risk of cognitive decline.
Nuts are an important component of the Mediterranean diet, providing healthy fats, antioxidants and other nutrients that support brain health.
Diets rich in highly-processed foods and low in nutrient-rich whole foods may increase inflammation and negatively affect long-term cognitive health.
The Health Star Rating (HSR) system is a valuable front-of-pack nutrition labelling tool designed to help consumers compare packaged foods and make healthier choices.
But how accurately does the HSR reflect the healthfulness of core foods? And how well does it align with dietary guidance and nutrition evidence?
In this re-released episode, Associate Professor Sara Grafenauer shares insights from her 2025 research, which explored three evidence-based modelling scenarios to apply to the HSR algorithm. The research examined how the current system scores nuts and nut-containing foods, identified areas where some nuts may be disadvantaged because of their naturally occurring energy and saturated fat content, and evaluated potential changes to improve alignment with current dietary guidance and nutrition evidence.
Sara highlights potential unintended consequences of the current system, discusses the findings from the modelling scenarios, and explains how thoughtful refinements to the algorithm could strengthen public trust and confidence in the system, while better recognising the nutritional value of whole foods.
Key take-outs:
· The current HSR algorithm may not always reflect the overall health value of some nuts, despite their well-established role in healthy dietary patterns.
· Simple, evidence-based refinements to the algorithm could improve alignment with contemporary nutrition science and dietary guidelines.
· As the HSR system evolves, ensuring it accurately represents nutrient-dense whole foods will help maintain consumer trust and confidence in front-of-pack nutrition labelling.
· Mandatory HSR should reinforce, not complicate, advice to eat recommended core foods.
Associate Professor Sara Grafenauer is the Lead for the Nutrition, Dietetics and Food Innovation Program at UNSW and was instrumental in conceptualising and developing the program. Sara is an APD and Fellow of Dietitians Australia. She is on the Governing Boards for the International Whole Grain Initiative, and Oat Australia. Although Sara loves research and teaching, she still has a weekend private practice in Thirroul, New South Wales, where she lives.
Allergy prevention and management [re-release]
Monday, May 25, 2026 • Duration 25:59
As Australia marks Food Allergy Week, we're revisiting this important episode exploring research around nut allergy prevention and management. Australia continues to have one of the highest rates of food allergy in the world, with reactions ranging from mild symptoms through to life-threatening anaphylaxis.
In this episode, Dr Vicki McWilliam explains the current understanding of why allergies are so common in Australia and discusses the major shift in allergy prevention research - particularly the evidence supporting early introduction of peanuts in infancy. She also explores emerging research into treatments and therapies, and what this could mean for the future management of nut allergies.
This timely re-release provides health professionals with an evidence-based overview on one of the most important and rapidly-evolving areas in nutrition and allergy research.
Dr Vicki McWilliam is a Clinician-Scientist Fellow at the Murdoch Children's Research Institute, a Senior Dietitian at the Royal Children's Hospital and a Senior Research Fellow in the Department of Paediatrics at the University of Melbourne. Dr McWilliam is also an Associate Investigator for the Centre of Food Allergy Research and a member of the National Allergy Centre of Excellence Food Allergy Advisory Group.
In this episode of The Healthy Handful, host Belinda Neville speaks with Professor Kelly Lambert about the rising prevalence of kidney disease, the major risk factors including high blood pressure and diabetes, and the important role nutrition plays in protecting kidney health.
Professor Lambert explains how nutrition can help manage chronic kidney disease (CKD), with a focus on the benefits of plant-based eating patterns. She discusses how these diets may support a healthier gut microbiome and help reduce the production of toxins that can place further strain on the kidneys.
The conversation also explores how dietary advice should be tailored according to the stage of kidney disease and any co-existing health conditions. Finally, they unpack the findings of a recent systematic review examining the potential role of nuts in reducing non-traditional CKD risk factors, including chronic inflammation and oxidative stress.
Key take-outs:
· CKD is becoming more common, driven largely by rising rates of diabetes, obesity and cardiovascular disease.
· Nutrition plays a central role in the management of CKD, with plant-rich eating patterns showing strong benefits for kidney and overall health.
· Emerging research suggests nuts may benefit some people with CKD, particularly through their anti-inflammatory and antioxidant effects.
Kelly Lambert is a Professor and Discipline Leader in Nutrition and Dietetics at the University of Wollongong in New South Wales, Australia. She is also a Fellow of Dietitians Australia.
Kelly has extensive experience as a clinical dietitian, with more than two decades of her clinical career as specialist kidney dietitian.
Diet and the gut microbiome: Episode 58
Episode 58
Monday, March 30, 2026 • Duration 32:27
In this episode, we speak with gut microbiome researcher, Dr Matthew Snelson to unpack the fascinating and rapidly-evolving science of the microbes that live within our digestive system.
Together, we explore how the gut microbiome develops - from early life through adulthood - and the dietary factors that shape its composition.
Dr Snelson explains what current research tells us about dietary patterns that support a diverse and resilient microbiome, highlighting key nutrients and food groups that appear to promote beneficial microbial changes.
Finally, Matthew walks us through insights from a recent review paper examining the relationship between nut consumption and gut microbiome composition, discussing how nuts may influence microbial diversity and the production of beneficial metabolites.
This conversation offers a clear, evidence-based look at how everyday food choices can shape the ecosystem inside our gut - and what that can mean for overall health.
Key take-outs:
The gut microbiome develops across the lifespan - our microbial community begins forming early in life and continues to evolve over time.
Diet is one of the strongest modulators of the microbiome - dietary patterns rich in plant foods and fibre help support a more diverse and resilient microbial ecosystem.
Nuts may support gut health - emerging research suggests that regular nut consumption can influence gut microbiome composition and may increase beneficial microbial activity.
Everyday food choices matter - small, consistent dietary habits can shape the gut microbiome over time, with potential implications for overall metabolic and digestive health.
Dr Matthew Snelson is an Advanced Accredited Practicing Dietitian and Vice Chancellor's Research Fellow in the Nutrition & Health Innovation Research Institute at Edith Cowan University.
Food and mood [re-release]
Tuesday, February 24, 2026 • Duration 27:27
Just like the rest of our body, our brain is deeply influenced by our lifestyle. The quality of our sleep, how often we move, and what we eat, all play a powerful role in shaping brain health.
To function at its best, the brain relies on a wide variety of nutrients, which means dietary diversity matters. Growing research shows that improving our eating patterns and incorporating a broad range of whole, nutrient-dense foods can lead to meaningful improvements in mood and overall mental wellbeing.
In this episode, originally recorded in 2022, we explore the science behind the food and mood connection with Dr Wolf Marx from the Food & Mood Centre at Deakin University.
Key take-outs:
Brain health is shaped by lifestyle choices - including sleep, physical activity, and especially diet.
The brain requires a wide range of nutrients, meaning dietary diversity is essential for optimal function:
Mediterranean diet research highlights the importance of overall dietary patterns - emphasising fruits, vegetables, extra virgin olive oil, nuts, legumes, and lean proteins, which together provide nutrient-dense compounds that support brain health, mental wellbeing, and chronic disease prevention.
· Mental health care isn't just psychological - nutrition is an important, and often overlooked piece of the puzzle.
A/Prof Wolfgang Marx is the Deputy Director of the Food & Mood Centre. A Senior Research Fellow and NHMRC Emerging Leader, Wolfgang has been a key member of the Centre since 2018, leading major projects in Nutritional Psychiatry. His work spans high-impact systematic reviews, clinical trials on probiotics and nutraceuticals, and international clinical and research guidelines. As President of the International Society for Nutritional Psychiatry Research, he has also played a key role in advancing the field at a global level.
Nuts and fitness [re-release]
Tuesday, January 27, 2026 • Duration 30:34
Nutrition is a fundamental pillar of performance, influencing everything from fuelling and hydration to recovery, injury prevention, sleep, and mental focus.
In this episode, originally recorded in 2022, Accredited Sports Dietitian Emilie Burgess explores the key nutrition principles that support optimal training and performance. She breaks down the essential nutrients athletes need, while also addressing and debunking common performance-related nutrition myths.
Key take-outs:
· Key nutrition pillars for peak performance include:
o Fuelling foods – quality carbohydrates to power activity.
o Building foods – protein to build and repair muscles.
o "Unlockables" – colourful fruits and vegetables plus quality fats, providing antioxidants, vitamins, and minerals that support immunity, gut and brain health, and aid recovery by reducing inflammation.
· Nuts play a starring role: they support overall health, help prevent diet-related diseases, and provide energy, protein, and essential nutrients that enhance exercise performance.
· For most people, at least a handful of nuts a day is a simple, effective way to boost performance and recovery.
Emilie Burgess is an Accredited Sports Dietitian with years of experience in the performance nutrition landscape. Graduating from the University of Sydney in 2007, Emilie went on to complete a Diploma of Sports Nutrition through the International Olympic committee. Based in Tasmania, she is co-director and performance dietitian at The Athlete's Kitchen.
Supporting resources
Best of 2025: Episode 57
Episode 57
Monday, December 15, 2025 • Duration 33:26
Our 57th episode takes a different turn - our dietitians wrap-up of the best of 2025!
We look back on the standout moments and key achievements in the world of nuts and health.
Host of The Healthy Handful podcast, Belinda Neville, is joined by colleague and dietitian Maree Hall to reflect on the year that was - from major policy announcements in the US, to FSANZ reviews here at home, and emerging food and health trends, including the humble pistachio being named flavour of the year!
We also revisit some of the year's most impactful research, including a novel study exploring the link between nut consumption and PMS. It's a delightful trip down memory lane.
Maree Hall is the Digital and Communications Manager at Nuts for Life.
Maree has more than 20 years' experience in communications across a range of channels, working primarily with consumer and healthcare professional audiences. During the past decade she has worked within the food industry sector, as well as for the professions' national body, Dietitians Australia.
For over a decade, Stephanie has been involved in chronic disease prevention from a nutritional perspective (including cardiovascular, type 2 diabetes, and cognitive health), as well as advancing evidence-based practice and knowledge dissemination with the goal of informing public health policy and nutrition guidelines.
Supporting resources
Effect of nut consumption on blood lipids: An updated systematic review and meta-analysis of randomized controlled trials
Nut consumption and risk of cardiovascular disease events and all-cause mortality: A systematic review and dose–response meta-analysis of prospective cohort studies
Professor Catherine Itsiopoulos is Deputy Vice-Chancellor STEM College, and Head of the Bundoora Health Precinct. As a senior academic leader, Catherine's mission is to build a high performing student-centred culture within academic and professional teams and fostering engaging learning environments co-designed with strategic industry partners.
She is the Vice President of the Mediterranean Lifestyle Medicine Institute, a Board Member of the Australasian Society of Lifestyle Medicine, Advisory Board Member of the British Society of Lifestyle Medicine, and Chair of the Education Task Force for the World Lifestyle Medicine Organisation.
An established research leader in the field of nutrition and dietetics and international standing as a leader in Mediterranean diet studies. Catherine is an extensively cited research scholar with more than 150 scientific publications, book chapters and clinical guidelines on dietary management of chronic diseases.
Supporting resources
Consensus statement on exploring the Nexus between nutrition, brain health and dementia prevention.
Findings of a pilot study investigating the effects of mediterranean diet and aerobic exercise on cognition in cognitively healthy older people living independently within aged-care facilities: The Lifestyle Intervention in Independent Living Aged Care (LIILAC) Study
Kelly's research interests focus on helping people with kidney disease live better lives. Her research career has focused on cognition and health literacy in people with kidney disease and how this intersects with the way people learn about diet.
She is passionate about helping people living with kidney disease to make optimal diet and lifestyle choices. To achieve this, she works as Co-Director of the Kidney Lifestyle Research Group and Deputy Director of the Health Innovations Research Centre at the University of Wollongong.
Supporting resources
Safety and efficacy of using nuts to improve bowel health in hemodialysis patients
He is interested in how dietary interventions can influence the prevention and management of chronic diseases - such as hypertension, heart failure, diabetes, and kidney disease - through modulation of gut homeostasis.
His work explores how nutrition-driven changes in the gut microbiome, intestinal permeability, and metabolic pathways can reduce disease risk and improve therapeutic outcomes.
Supporting resources
Cardiometabolic benefits of a non-industrialized-type diet are linked to gut microbiome modulation
Does the evidence support a relationship between higher levels of nut consumption, lower risk of depression, and better mood state in the general population? A systematic review
High ultra-processed food consumption is associated with elevated psychological distress as an indicator of depression in adults from the Melbourne Collaborative Cohort Study
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