The Nutrition Couch

Most people have no idea what actually happens to body fat when they lose it. They assume it is sweated out, burned off somehow, or just disappears. The real answer is both surprising and genuinely fascinating, and it changes how you think about fat loss entirely.
This week Leanne and Susie open with the science behind what actually happens to fat cells when you lose weight, why fat cells shrink rather than disappear, and what that means for keeping weight off long term. Then they get into the practical stuff: their best tricks for avoiding that slow winter weight creep that catches so many people out between June and August.
In this episode:
The surprising science of fat loss: where body fat actually goes when you lose it, why the answer involves your lungs and not your sweat glands, and what happens to fat cells after you lose weight that makes maintaining that loss genuinely harder than most people realise
Why fat cells shrink rather than disappear, what that means for long-term weight management, and why working with a dietitian to maintain weight loss is often more important than working with one to lose it
The winter weight gain conversation: why it happens, why exercise drops off before food quality does, and the three practical strategies Leanne and Susie use with clients every winter to come out the other side feeling good in their clothes
Why a hot lunch makes more difference to afternoon cravings than most people expect, the slow cooker approach to packing in protein and vegetables without giving up comfort food, and the specific swaps that lighten up winter favourites without removing the enjoyment
The new Moccona Protein Latte Coffee from Woolworths: 10 grams of protein, $10 for eight serves, bovine collagen as the first ingredient. What Leanne and Susie actually think, who it is and is not for, and the important protein quality point about collagen that most people buying this have not considered
Why making your coffee on dairy or soy milk at home gives you a comparable amount of protein with significantly less processing, and why the caffeine content of this product is lower than most people would expect
The oxalate question answered plainly: do oxalates in spinach and leafy greens actually block iron absorption, should you be avoiding them with iron-rich meals, and the only situation where oxalates genuinely warrant attention in your diet
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If you have taken iron supplements for months and your ferritin still is not coming up, there is a physiological reason for that. And it is not your fault.
A study published in The Lancet Haematology found that taking iron supplements on consecutive days actually blocks absorption due to a hormone called hepcidin, and that alternate-day dosing improved iron uptake by 40 to 50%. This is one of the most practically useful pieces of research the show has covered, and Leanne and Susie break it down clearly so you know exactly what to do differently.
This week also includes a straight-talking collagen segment, the fibre maxing trend assessed honestly, and a review of the new Woolworths high-protein meal range.
In this episode:
The fibre maxing trend on TikTok and Instagram: why Leanne and Susie actually support the idea, what most people get wrong about increasing fibre too quickly, and why processed fibre from bars and wraps is not the same as fibre from whole foods
Why consistency with fibre matters more than volume, what happens to your gut during travel and weekend eating, and the three things that need to work together for good digestive health
The Lancet Haematology iron absorption study: what hepcidin is, why it blocks iron absorption for 24 hours after a high dose, and why taking iron every day may actually be preventing your levels from improving
Why alternate-day iron supplementation improved absorption by 40 to 50% compared to daily dosing, and the practical implication for how much to take and when
Whether an iron infusion is still preferable for people who struggle with oral supplements, why follow-up blood tests are essential, and the one mistake Leanne sees women make once they start feeling slightly better
The new Woolworths Teriyaki Chicken Bowl reviewed: 35 grams of protein at $12, brown rice, edamame, and quinoa, what a client who tried it actually said, and whether frozen meals might genuinely be the better option in this category
The collagen evidence honestly assessed: what the research actually shows for skin, joints, and wrinkle depth, why you need to take it daily for 8 to 12 weeks to see results, and the specific trademarked peptide called Verisol that has the most clinical research behind it
Why marine collagen is not superior to bovine collagen despite what you have seen online, how much you need for skin versus joint health, and why some brands charging $80 to $90 are not giving you anything better than a well-formulated $37 option
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If you shop at Aldi regularly or have been thinking about adding it to your grocery rotation, this episode is going to save you time and money. Leanne and Susie share their personal Aldi favourites, the specific products they recommend to clients, and the ones that look good but do not stack up.
And if you have ever used AI to get nutrition advice, track your intake, or build a meal plan, there is a study published earlier this year that you genuinely need to hear about.
In this episode:
The Aldi products Leanne and Susie actually buy and recommend, across fresh produce, protein, dairy, snacks, frozen meals, and a few honest indulgences. Specific product names included, no vague recommendations
Why the leafy greens at Aldi outperform the major supermarkets for freshness and shelf life, and how to store them to make them last even longer
The Aldi protein yogurt, low-carb protein bread, beetroot hummus, tuna bean cups, and almond butter that both dietitians put on their regular shopping list and why
A new study from March this year published in Frontiers in Nutrition comparing AI-generated diet plans against dietitian-designed plans: AI underestimated calories by up to 600, protein by 20 grams, and carbohydrates by 100 grams. Not a small margin of error, a significant one
Why the false confidence AI creates around calorie and nutrient counts is the real danger, and the specific situations where Leanne and Susie would and would not use it in a nutrition context
The Mission Carb Balance wrap reviewed: 16 grams of fibre and four grams of carbohydrate per wrap, a five-star health rating, and Leanne's strong views on why this product is not what it appears to be
Why ultra-processed, low-carb wraps with modified wheat starch, wheat gluten isolate, and 16 grams of added fibre are a problem for most women's digestive health, and what to eat instead
The creatine and heat question answered properly: can you add creatine to porridge, baked oats, or warm drinks without losing its effectiveness? What temperatures and time frames matter, and the one mistake Leanne sees clients make all the time with their creatine drink bottle
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Six Australians have developed acute liver failure after purchasing counterfeit weight loss peptides online. The TGA and the Victorian Department of Health have both issued urgent warnings this week. And yet these products are still a Google search away from anyone who wants them.
If you have seen retatrutide or any weight loss peptide being promoted on TikTok or Instagram, or you know someone who has bought one through a gym contact, a beauty clinic, or an online supplier, this episode is essential listening.
Leanne and Susie cover the full picture this week: what these peptides actually are, why buying them outside of a prescription is genuinely life-threatening, and what you should do instead if weight loss medication is something you are considering.
In this episode:
The breaking Australian story: six people in acute liver failure after purchasing counterfeit retatrutide, what happened, how they obtained it, and the urgent warning now issued by the TGA and the Victorian Department of Health
What retatrutide actually is, where it is in the clinical trial process, and why it is not approved in Australia regardless of what you have seen promoted online
Why buying weight loss peptides outside of a prescription is not a grey area: the comparison to buying illicit drugs off the street, what contaminants and counterfeit ingredients can do, and why there is no coming back from liver failure
The right way to access weight loss medication in Australia if it is appropriate for you, what a proper prescription process looks like, and why doing it correctly is not as difficult or expensive as people assume
New research from over 83,000 people published in the Journal of Nutrition: which of the five most well-regarded healthy eating patterns performs best for people with high blood pressure, and why the result confirms what dietitians have been saying for decades
What the DASH diet actually requires in terms of fruit and vegetable intake, why most people who think they are following it are not eating anywhere near enough plant food, and the sodium-to-potassium ratio that makes the biggest difference to blood pressure
The Campbell's Gut Goodness Bone Broth reviewed: 20 grams of protein per pack, Monash low FODMAP certified, acacia prebiotic fibre, less than 300 milligrams of sodium per serve, and a clean ingredient list that genuinely impressed both Leanne and Susie
Thaumatin: what it is, where it comes from, why it sounds more alarming than it is, how it compares to stevia and monk fruit, and whether it is safe to consume
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Most women who are trying to eat well are getting carbohydrates wrong. Not because they are eating too many, which is what they usually assume. Often because they are eating too few of the right ones and too many of the wrong ones at the wrong times.
This week Leanne and Susie break down one of the most misunderstood topics in women's nutrition, what too little carbohydrate actually looks like in the body, what too much of the wrong kind does over time, and how to find the sweet spot that matches your actual activity level, hormones, and goals.
Plus, PCOS has a new name. Published in The Lancet in May this year, it is now being referred to as PMOS, and the reason behind the change tells you a lot about how the medical world is finally starting to understand this condition more accurately.
In this episode:
Why PCOS has been renamed PMOS in a landmark article published in The Lancet, what the name change actually reflects about the condition, and why it matters for the 8 to 13% of women living with it right now
The surprising truth about polycystic ovaries: why there are not actually more cysts, and what is really happening in the ovaries of women with this condition
Why an anti-inflammatory diet, inositol, and working with a dietitian long-term are central to managing PMOS, and why medication alone will not move the needle the way lifestyle can
The signs you are not eating enough carbohydrate: ongoing fatigue despite normal blood tests, poor exercise performance, constant cravings, difficulty concentrating, and never feeling full after meals
The signs you are eating too many of the wrong carbohydrates, why the combination of too few quality carbs and too many refined ones is the pattern Leanne and Susie see most consistently in their clinics
Why being in carbohydrate no man's land, not low enough for ketosis but not high enough to support metabolism, is one of the most common reasons women stall when trying to lose body fat
How carbohydrate needs are highly individual and change depending on body size, activity level, hormones, life stage, and whether you are breastfeeding, perimenopausal, or training intensively
The quality carbohydrates to focus on at each meal, and the refined ones that are quietly slipping in while women are avoiding rice at lunch and sweet potato at dinner
The new Uncle Tobys Protein Quick Oats reviewed: where the 8 to 9 grams of protein is actually coming from, whether it is enough for women with fat loss or body composition goals, and when Leanne would and would not recommend it
The best frozen fish in Australian supermarkets ranked: Sealord, Birdseye, Findus, the Coles wild caught fish fingers, and the steam fresh range reviewed by fish percentage, protein, and taste
Work with Leanne or Susie:
Winter is one of the best times to work with a dietitian, with fewer social events and more structure. Leanne is at leannewardnutrition.com.au and Susie is at susieburrell.com.au.
Shop Designed by Dietitians:
Support your protein, creatine, magnesium, and collagen needs with science-backed supplements at designedbydietitians.com
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