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Thinking Nutrition — Health & Fitness
Thinking Nutrition

Thinking Nutrition is all about presenting the latest nutrition research in plain language and then translating this into what it means for your health. Dr Tim Crowe is a career nutrition research scientist and dietitian. Tim has over 30 years of research and teaching experience in the university and public health sectors, covering areas of basic laboratory research, clinical nutrition trials and public health nutrition. He now works chiefly as a freelance health and medical writer and science communicator.

Copyright: © 2022 Thinking Nutrition

Latest Episodes:

How to keep up with nutrition research Jul 28, 2020

Show notes

Want to keep up with the latest developments in nutrition research? Nothing beats curating your own information-gathering network from a variety of credible sources. But where to start? If you want to keep up with breaking nutrition research like a boss, then this podcast is for you. I’ll let you in on the key journals to subscribe to, the best search databases to use, and profile some of the best secondary sources that do a lot of the curating for you.
Links referred to in the podcast

American Journal of Clinical Nutrition https://ajcn.nutrition.org
Annual Review of Nutrition www.annualreviews.org/journal/nutr
European Journal of Clinical Nutrition www.nature.com/ejcn
Journal of Nutrition https://jn.nutrition.org
Nutrition Reviews www.academic.oup.com/nutritionreviews
Obesity Reviews www.onlinelibrary.wiley.com/journal/1467789x
PubCrawler http://pubcrawler.gen.tcd.ie
Science Daily www.sciencedaily.com/news/health_medicine/nutrition
Medscape www.medscape.com
Examine www.examine.com
Effect of diet and exercise on the risk of caesarean-section www.bmj.com/content/358/bmj.j3119

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

How to decipher a research paper Jul 21, 2020

Show notes

Nutrition is based on science. And while the science may not always agree and even change over time, just like all scientific fields of research, without credible research to inform your views you are really just flying blind in the wind at the mercy of feelpinions and what your social media news feed shows you. The base of all scientific research is the communication of it through research papers published in peer-reviewed journals. In this podcast, I’ll show you how to delve beyond the title of a research paper and instead apply a critical filter to all parts of the research study. Developing this skill will allow you to form your own view of how much influence to give to a research study, rather than be led astray from those seeking to influence you.

Links referred to in the podcast

Research study design online tutorial http://himmelfarb.gwu.edu/tutorials/studydesign101
Examine.com guide on how to read a scientific study https://examine.com/guides/how-to-read-a-study

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Got zinc? Foods, functions and deficiencies Jul 14, 2020

Show notes

Zinc is an essential mineral which is needed for the proper growth and maintenance of our body. It is a key factor in helping hundreds of enzymes work and is needed for immune function, wound healing, blood clotting, thyroid function and much more. While rare, zinc deficiency in a country like Australia can occur and there are certain groups particularly at risk. In this podcast, I’ll outline the key roles of zinc, what the consequences of deficiency are and give you suggestions on the best food sources and supplemental forms of zinc.

Links referred to in the podcast

Zinc and the common cold https://pubmed.ncbi.nlm.nih.gov/28515951
Breastfeeding and the infant microbiome https://pubmed.ncbi.nlm.nih.gov/28492938

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Tracking diet trends with Google Trends Jul 07, 2020

Show notes

Diets are like clothing fashion trends: they come into and out of style. And if you wait long enough: back into style again. One of my favourite pop culture research tools is Google Trends. Google Trends keeps a global finger on the pulse of what’s hot and what’s not in the world of nutrition and diets. And tracks this over time based on the popularity of search terms. Now a research team has mined this wealth of data to produce a snapshot of the ever-changing diet trends with some surprising results.

Links referred to in the podcast

Popularity of diets using Google Trends data https://www.sciencedirect.com/science/article/abs/pii/S0899900720300423
Popular diets compared https://www.annualreviews.org/doi/full/10.1146/annurev-publhealth-032013-182351
Diet and association with cancer mortality and cancer recurrence https://academic.oup.com/nutritionreviews/article/74/12/737/2656957

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

My top nutrition myths Jun 30, 2020

Show notes

Can a slow metabolism be blamed for most people's weight gain? Is celery a negative calorie food? Does microwaving food destroy nutrients? The answer to all of the questions I just posed is 'no'. Welcome to the world of nutrition myths. Nutrition is a field where someone can be seen by the public as an ‘expert’ simply because of the way they eat and the benefits it has had for them. So, is it any wonder that nutrition is also an area that is ripe for the propagation of all manner of myths and falsehoods? Some of these myths are born from a base of science, but as science advances, these myths should be called out for what they are. In this podcast, I’ll go over some of the more popular myths I’ve come across and explain where the truth really lies.

Links referred to in the podcast

Review on exercise and food intake https://pubmed.ncbi.nlm.nih.gov/17310855
Perceived healthiness of a food and amount eaten https://pubmed.ncbi.nlm.nih.gov/28389137

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

How what you eat affects your mental health Jun 23, 2020

Show notes

You are what you eat, but when it comes to your mental health, what you eat can have a profound impact on your mood and how you feel. Welcome to the rapidly moving world of nutritional psychiatry which is uncovering the key links between diet and mental health. And it could just be that it is our gut microbes, by acting as psychobiotics, that are the stars of the show here; so long as they are kept fed well.

Links referred to in the podcast

Fruits and vegetables consumption and life satisfaction https://ajph.aphapublications.org/doi/full/10.2105/AJPH.2016.303260
Nutrition intervention in depression: the SMILES study https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-017-0791-y
Nutrition intervention in young people with depression https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0222768
Meta-analysis of diet in depression and anxiety https://pubmed.ncbi.nlm.nih.gov/30720698/
Meta-analysis of fish oil in depression https://www.nature.com/articles/s41398-019-0515-5
Meta-analysis of fish oil in anxiety https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2702216
Meta-analysis of vitamin D in depression https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6515787

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Why antioxidants in food are overrated Jun 16, 2020

Show notes

Antioxidants. They’re a food marketer’s dream. With promises of helping to keep your waistline slim, your heart healthy, and your brain sharp, is there anything these wonder molecules can’t do? Blueberries, dark chocolate, green tea and whatever happens to be trendy in the juice bar scene makes for a great reason to eat something delicious that can also be good for your health. But the time of antioxidants has come and gone. Nutrition science has moved on and now promotes the benefits that thousands of other natural chemicals found in foods can have – most with nothing to do with their antioxidant activity. In this podcast, I’ll outline the role antioxidants play in the body and explain why food is much more than antioxidants when it comes to health.

Links referred to in the podcast

Antioxidants in the prevention of cancer: meta-analysis https://pubmed.ncbi.nlm.nih.gov/19622597
Shift work and the risk of obesity https://onlinelibrary.wiley.com/doi/abs/10.1111/obr.12621

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Magnesium: foods, functions and supplemental forms Jun 09, 2020

Show notes

Magnesium. It is a key mineral in our body and needed for more than 300 different chemical reactions. It is also essential for muscle contractions and nerve transmission while keeping your heart beating steadily and your immune system strong. In this podcast, I’ll outline the key functions of magnesium as well as cover the different health conditions where magnesium is thought to play a role such as heart disease and high blood pressure, diabetes, muscle cramping and poor sleep quality. And then I’ll look at the main food sources and critique the merits of the many different supplemental forms of magnesium.

Links referred to in the podcast

Cochrane review of magnesium and muscle cramps https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7025716
Magnesium L-threonate in people with Alzheimer’s disease https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6242385
Cooking skills in young adults and later life diet behaviours https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6086120

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Are raw food diet claims overcooked? Jun 02, 2020

Show notes

Eating only raw foods has emerged as a popular dietary trend. Proclaiming an emotive health message, it is enough to make you think twice before next adding heat to your food. But fear not because on the scales of health, there is little to tip the balance in either direction. In this podcast, I look at the claims made about raw food diets and put these into context for the many health benefits that cooking food offers.

Links referred to in the podcast

USDA Nutrient Retention Database https://www.ars.usda.gov/ARSUserFiles/80400535/Data/retn/retn06.pdf
Study on how cooking preserves antioxidant content of foods https://pubs.acs.org/doi/full/10.1021/jf072304b
Review of cooked and raw vegetable consumption and cancer risk http://cebp.aacrjournals.org/content/13/9/1422.long
Early life eating habits https://onlinelibrary.wiley.com/doi/abs/10.1111/obr.12658

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

Sports supplements essentials: beta-alanine May 26, 2020

Show notes

The sports supplement market is big business, but the reality is that most of these supplements have little evidence for a benefit. It is not all negative news though because there is a small group of supplements that are backed by science and which can play a performance-enhancing role in some athletes. In this series on sports supplements, I will profile this group of supplements and for this podcast, the spotlight is on beta-alanine.

Links referred to in the podcast

IOC consensus statement on dietary supplements and the high-performance athlete https://bjsm.bmj.com/content/52/7/439
Sports Dietitians Australia www.sportsdietitians.com.au

Episode transcript
To 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.com

Connect with me
Instagram: doctimcrowe
Facebook: Thinking Nutrition
Twitter: CroweTim

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