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Magnesium is a key mineral that is essential for muscle contractions and nerve transmission while also keeping your heart beating steadily and your immune system strong. Of the many health conditions linked to magnesium, it is poor sleep quality that often comes up as a reason to take magnesium supplements. In this podcast, I’ll look at the latest evidence for magnesium and sleep. And then I’ll profile the main food sources of magnesium and critique the merits of the many different supplemental forms of magnesium.Links referred to in the podcastSystematic review of magnesium and sleep quality https://pubmed.ncbi.nlm.nih.gov/35184264Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking Nutrition
Caffeine is a popular go-to supplement for many athletes. And for good reason. Not only is it the key component of one of the world’s most widely used legal drugs – I’m talking about coffee here people – it is also a sports supplement that is well supported by scientific evidence. Caffeine can offer a performance-enhancing benefit by providing a small, but worthwhile, enhancement of performance over a range of exercise situations from short-duration events right through to endurance events. In this podcast, I look at the role of caffeine specifically in resistance exercise and outline what could be the minimum amount needed for a benefit.Links referred to in the podcastIOC consensus statement on dietary supplements and the high-performance athlete https://bjsm.bmj.com/content/52/7/439Caffeine and resistance exercise meta-analysis https://pubmed.ncbi.nlm.nih.gov/35203046Sports Dietitians Australia  www.sportsdietitians.com.auEpisode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Eating nuts as part of a healthy diet is good for your heart. They’re also a super nutritious snack for any time of the day. But, what about all that fat? Be fearful not of fat as not only is the type of fat found in nuts considered healthy, but a major systematic review finds little impact of eating nuts on body weight. And that’s what I’ll cover in today’s episode.Links referred to in the podcastSystematic review of nuts and body weight https://onlinelibrary.wiley.com/doi/full/10.1111/obr.13330Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Plant-based eating is on-trend and has been for some time. Fuelled by health, environmental and ethical personal choices, we are seeing more people than ever adopt this way of eating. But there is no one ‘right’ way to eat. And even within a framework of ‘mostly plants’, it is possible to do it well and not so well. In this podcast, I’ll look at the latest research comparing different types of plant-based diets to one that includes meat and see how they compare on the nutrient wins and losses scoreboard.Links referred to in the podcastSystematic review of plant-based diets compared to meat eaters https://pubmed.ncbi.nlm.nih.gov/35010904Healthy and unhealthy plant-based diets https://pubmed.ncbi.nlm.nih.gov/34379193 Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
With no end of diets to choose from, it is clear they collectively make little long-term impact on body weight with most people regaining any weight lost within months. So, rather than putting the focus on dieting to lose weight, how much impact could a change in mindset to concentrate on eating healthier have instead? Well, in an interesting twist to this question, a research study designed to educate people on portion sizes, actually found that people ate more food. But the catch was that it was healthier food options they were choosing, with the flow-on benefit of them eating fewer kilojoules overall.Links referred to in the podcastEffect of portion size training on food choices https://pubmed.ncbi.nlm.nih.gov/29353006 Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Heard about flavonoids? They are just one group from a long list of beneficial natural polyphenol chemicals you’ll find in plant foods. While the chemistry and naming structure can be daunting, there is nothing daunting about the foods that contain lots of these flavonoids. In our body, these flavonoids can operate as antioxidant and anti-inflammatory agents. And that all spells good news for your heart health. In this podcast, I’ll explain what flavonoids are, what foods contain lots of them, and unveil the latest evidence linking them to good heart health.Links referred to in the podcastFlavonoids explained https://www.healthline.com/health/what-are-flavonoids-everything-you-need-to-knowMeta-analysis of flavonoids and heart disease risk https://pubmed.ncbi.nlm.nih.gov/34470681Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Nut allergies are one of the most common types of food allergy seen in children and adults. Caused when the body’s immune system overreacts to proteins found in nuts or peanuts, it can lead to a range of symptoms from mild reactions to severe anaphylaxis that is life-threatening. People with a nut allergy need to avoid the nut that triggers their allergy entirely. There is hope on the horizon though. Called oral immunotherapy, it is emerging as a possible way to desensitise people to nuts and allow small amounts to be eaten safely. And that’s what I’ll be covering in this podcast. Links referred to in the podcastOral immunotherapy clinical trial 2016 https://pubmed.ncbi.nlm.nih.gov/27522159 Oral immunotherapy clinical trial 2022 https://pubmed.ncbi.nlm.nih.gov/35065784AR101 oral immunotherapy for peanut allergy https://pubmed.ncbi.nlm.nih.gov/30449234Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Bowel cancer (also called colorectal or colon cancer) is the second biggest killer of Australians from cancer each year. This is one form of cancer where diet and lifestyle choices play a big part in changing a person’s risk of developing it. But once someone is diagnosed with cancer, the outlook changes. Now emerging research is finding that the use of probiotic supplements taken in conjunction with active treatments of surgery, chemotherapy or radiotherapy can have a beneficial effect on the outlook of people with bowel cancer. And that’s the topic I’ll cover in this podcast episode.Links referred to in the podcastSystematic review of probiotics for the management of radiation-induced bowel disease https://www.sciencedirect.com/science/article/abs/pii/S0261561413000502Systematic review of probiotic supplementation in people with colorectal cancer https://academic.oup.com/nutritionreviews/article-abstract/80/1/22/6283538Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Growing up, kids are told to sit down at the table when they’re eating. Far from just being about good manners, science is now discovering how standing up while eating can change taste perception, temperature sensation and even how much is consumed. Welcome to the weird world of altered taste perceptions which is what I’ll be exploring in this podcast.Links referred to in the podcastSitting vs standing and taste perception https://academic.oup.com/jcr/article/46/4/708/5488173Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Ketogenic diets have gained popularity in recent years among athletes. While these diets are just as effective for weight loss as any other diet that causes a calorie deficit, the evidence for a real sporting advantage over other diets is very mixed and it seems only in steady-state endurance sport that they may have some role. But what about in the gym? Is keto a viable option to both shred and bulk up at the same time? That’s what I explore in this podcast by looking at the findings of a recent review paper on this very topic.Links referred to in the podcastReview of keto diet and effects on resistance training https://pubmed.ncbi.nlm.nih.gov/34578961Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Can you cure a hangover? Do drinks with bubbles get you drunk quicker? Are darker drinks worse for you than clear drinks? Is there really such a thing as a beer gut? These questions and more are what I’ll be tackling in my annual Christmas special podcast on all things alcohol facts and fallacies.Links referred to in the podcastSystematic review of hangover cures https://www.bmj.com/content/331/7531/1515Beer belly research https://pubmed.ncbi.nlm.nih.gov/19550430Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Curcumin is the bioactive ingredient found in the popular spice turmeric. Medical science is backing up many of the traditional health claims made about turmeric and the compounds it contains. Conditions such as arthritis, high cholesterol, exercise recovery and even depression all have a growing positive evidence base of research behind them. Now a new research review has looked at the evidence for curcumin supplementation in treating some of the symptoms of PCOS. In this podcast, I give an overview of the use of curcumin in different conditions and explain how it may be effective in PCOS too.Links referred to in the podcastSystematic review of curcumin supplementation for PCOS https://pubmed.ncbi.nlm.nih.gov/34517426Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Small intestinal bacterial overgrowth (SIBO) is a condition where there is an abnormal increase in the number of bacteria in the small intestine – especially types of bacteria not normally found in this part of the digestive tract. Most of the focus on gut health is given to the population of bacteria in our large intestine, so in this podcast, I’ll look at the consequences of what happens when bacterial growth gets out of control in our small intestine.Links referred to in the podcastHerbal treatments in SIBO https://pubmed.ncbi.nlm.nih.gov/24891990Elemental diet in SIBO https://pubmed.ncbi.nlm.nih.gov/14992438Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Many of us describe ourselves as having a sweet tooth. But science is now unlocking the secrets of why having a well-developed taste and tolerance to bitter foods could have a wealth of health benefits. But even with their many health benefits, the bitterness of foods such as broccoli, spinach and turnip can put people off. Now new research finds that the taste perception of bitter foods can change the more they are eaten.Links referred to in the podcastBitter taste and salivary proteins adaptationhttps://pubmed.ncbi.nlm.nih.gov/31053859Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
With all the recent health focus on sugar, poor old fruit has gotten undeserved attention for the simple reason that it is high in sugar. And from that, some very average advice has surfaced that people need to limit how much whole fruit they eat. Now a systematic review puts to bed any health concerns anyone should have about fruit, finding that whole fresh fruit does not contribute to weight gain. Eat up.Links referred to in the podcastSystematic review of the Impact of whole fresh fruit on energy intake and body weight https://www.frontiersin.org/articles/10.3389/fnut.2019.00066/fullFrozen fruit and veg increases consumption https://pubmed.ncbi.nlm.nih.gov/29290348Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Inflammation is now getting top billing as the latest health concern you should be worrying about. From avoiding so-called inflammatory foods to eating anti-inflammatory foods to treat and even cure inflammation, is there no disease that cannot be explained by our understanding of inflammation? Far from something scary, inflammation is a natural process that helps your body heal and defend itself from harm. It is only when inflammation becomes chronic that the story changes. In this podcast, I’ll explain just what exactly inflammation is, what causes it, when it is good and when it is bad, and importantly: what role diet and lifestyle habits play in inflammation.Links referred to in the podcastMediterranean diet and inflammation https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400632Effect of probiotics on inflammatory markers https://pubmed.ncbi.nlm.nih.gov/30854594 Meta-analysis of dairy foods and inflammation https://www.tandfonline.com/doi/full/10.1080/10408398.2014.967385Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
To exercise fasted or fed? It’s a controversial topic with strong views coming from both camps. For those promoting weight loss, exercising fasted is often an essential criterion to ensure the most ‘fat burning’ possible. Then there is the opposing argument that you want to be well-fuelled before activity to help power the length and duration of your exercise. As with most things in nutrition, the simple logic of both camps falls down when you take into account the complexity of physiology and psychology of us as human beings. In this podcast, I’ll look at the fasted versus fed exercise debate. Links referred to in the podcast Meta-analysis of fasted vs fed exercise on weight loss and boy composition https://www.mdpi.com/2411-5142/2/4/43  Meta-analysis of fasted vs fed exercise and performance https://pubmed.ncbi.nlm.nih.gov/29315892  Intermittent fasting and its effects on athletic performance https://pubmed.ncbi.nlm.nih.gov/31283627Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Inflammatory bowel disease (IBD) is a group of disorders that cause painful and chronic inflammation to the digestive tract with Crohn’s disease and ulcerative colitis being the most common forms. It is a disease that cannot yet be cured, but it can be managed with the use of medications or in some cases by surgery. Diet and lifestyle can help play a role in managing symptoms of IBD and in this podcast, I’ll look at some of the evolving research for future potential treatments.Links referred to in the podcastClinical trial of a low-FODMAP diet in IBD - 2019 https://pubmed.ncbi.nlm.nih.gov/31470260Clinical trial of a low-FODMAP diet in IBD - 2020 https://pubmed.ncbi.nlm.nih.gov/31586453FMT for the treatment of IBD https://www.frontiersin.org/articles/10.3389/fphar.2020.574533/fullEpisode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Taking on carbohydrates during exercise is a well-described way to help fuel muscle and endurance. But the research in this area took a decidedly strange turn some years ago when it was shown that the simple act of just swishing a carbohydrate-containing drink in your mouth for a few seconds can also have a performance advantage. This was research that I simply could not believe when I first came across it, but it has been replicated many times now. In this podcast, I’ll look at just how carbohydrate mouth rinsing can improve sports performance.Links referred to in the podcastSummary of the carbohydrate mouth rinsing research https://www.mysportscience.com/post/2015/05/20/spit-or-swallow-carb-mouth-rinse-and-performanceMouth rinsing with a pink artificially sweetened drink and running performance https://pubmed.ncbi.nlm.nih.gov/34055861Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
It was back in episode 55 that I first tackled the topic of collagen supplements. It proved to be one of my most popular episodes ever. And for good reason as there is a growing evidence base to support many of the health claims made about collagen: from improving skin health to perhaps even helping with sports injury recovery and osteoarthritis. In this podcast, I give an update on the growing scientific evidence for the use of collagen supplements. I’ll also explain how there is certainly a plausible biological mechanism to explain how this particular dietary protein source can have a targeted benefit even after digestion. Links referred to in the podcastMeta-analysis of effects of hydrolysed collagen on skin ageing https://pubmed.ncbi.nlm.nih.gov/33742704Episode transcriptTo access the full episode transcript, go to the following link and select the individual podcast episode and then click on the ‘Transcript’ tab https://thinkingnutrition.buzzsprout.comConnect with meInstagram: doctimcroweFacebook: Thinking NutritionTwitter: CroweTim
Comments (1)

Mia Mo

Thank you for the Meta-Analysis! I read many people say/write that collagen is useless without any backup or support to their statement.

Sep 13th
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