Processed Foods: Reader Feedback

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Today we reproduce the comment of our regular reader Ms Gaynor Lynch, on our recent piece about processed foods. Many thanks to her for taking the time to contact us:

Ultra-processed foods are bad for you – full stop. They are highly addictive and affect your brain chemistry so that you crave them more. Emerging research suggests ultra processed foods are particularly bad for not just the gut but the heart and brain as well, with mood and cognition badly affected.

Professor Tim Spectre is the go expert on the gut https://zoe.com/post/tim-spector-gut-tips,

There is an excellent excellent article in National Geographic on brain health but there is a pay wall. It may be available through your library service.

https://www.nationalgeographic.com/premium/article/ultra-processed-foods-damage-brain-depression-anxiety-cognitive-decline#:~:text=Although%20many%20ultra-processed%20foods%E2%80%94soda%2C%20candy%2C%20energy%20bars%2C%20fruit-flavored,brain%2C%20with%20mood%20and%20cognition%20taking%20a%20hit.

Abstract of research article in the journal Neurology on associations between ultra-processed food consumption and adverse brain health outcomes. Free, paywall to full article.

https://www.neurology.org/doi/10.1212/WNL.0000000000209432

We at LSS think that this whole issue is only going to grow in the next few years and welcome the thoughts of any other readers who might care to join the debate

#nutrition #obesity #food #diet #sustainability #health #heart

Are Ultra-Processed foods bad for your immune system? The Conversation thinks they might be

Go on any diet course these days (we’ve been on many) and the chances are that your course leader will inveigh against the dangers of processed foods[1] You know, those ones that saved us all so much time in the 1980s and 1990s, when it was essential to answer your e-mails and plan a talk over a delicious microwaved chicken korma. Well, processed foods comprise a lot more than just quick ready meals.And, l like a lot of labour-saving devices, they’re not all bad if used in moderation. Trouble comes when we all go too far. And our old friends The Conversation have an intriguing take on that. [2] Look at this extract frpm their article by Sam White and Phillipe Wilson

[there is] growing evidence that ultra-processed foods may affect how our immune system works. This may explain why some studies have linked ultra-processed foods with inflammatory bowel disease and potentially autoimmune diseases.

We on this blog have been tracking stories which link the digestive tract and immune system for some years. So it’s nice to see some real scientists really opening up this field. But there is a deeper lesson for us here, and it’s from economics, not science. Because economists of the classical school, or at least those who swallow their undergraduate textbooks, whole, always asseverate the a pure free market is the quickest way to achieve the optimum benefit. Well, processed foods are certainly free market. They have developed at breakneck speed, and certainly give the people what they want. The question is: how much do they need it? And at what cost does it come?

[1]https://www.nhs.uk/live-well/eat-well/how-to-eat-a-balanced-diet/what-are-processed-foods/

[2]https://theconversation.com/ultra-processed-foods-heres-how-they-may-affect-the-way-the-immune-system-functions-231884?utm_medium=email&utm_campaign=Latest

diet #food #microbiome# gut #immune system

Could your gut microbiome be making you anxious?

We always like intriguing new stories about health and biology here. That’s why we’ve showcased this item from Peter Hess of the Mail, Do you have Social Anxiety? Scientists Find the Condition lives in your gut. Peter reports some results from University College, Cork. Essentially, scientists there have transferred gut material from people with Social Anxiety to mice. And found that they have thereby induced significant changes in the nervous systems of those creatures: specifically, making them more prone to anxiety and fear [1]

The work is undoubtedly interesting, and it’s good journalism to write it up Especially when it’s one of our old tropes, in this case the relationship between the the digestive system and the nervous system (LSS 9 3 23 and passim). Is it the answer to all our woes? It’s too early to say.

Essentially, journalists report two types of science story. Definitive ones, which answer all the questions and close the subject down. Or intriguing ones on early research which opens a subject up and sets the questions for future researchers. It’s our gut feeling that this work belongs in the second category. For one thing, the numbers are small (12 people and 72 mice, if our maths is anywhere near correct) Good start, but we’d like to see replication across much larger numbers. And what is Social Anxiety Disorder anyhow? Psychiatric conditions are notoriously hard to define exactly. Could there be other causes of anxiety, such as war service or growing up with violent parents? They need to be controlled for.

It’s good work in an intriguing area, and we hope these researchers are given more time and money to pursue it. But we still wait and see for definitive conclusions.

[1]https://www.dailymail.co.uk/sciencetech/article-13156095/social-anxiety-gut-scientists-treatment.html

[2]https://www.bbc.co.uk/news/health-46986709

#diestive system #nervous system #health #anxiety