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ZOE Science & Nutrition

Protein & exercise: The secrets of healthy aging?

ZOE Science & Nutrition

ZOE

Nutrition, Science, Health & Fitness, Education

4.65.6K Ratings

🗓️ 25 May 2023

⏱️ 58 minutes

🧾️ Download transcript

Summary

As we age, our bodies undergo numerous changes, including a decline in muscle mass and cognitive function. For many of us, exercise and diet play crucial roles in maintaining our health and well-being.  But how can the protein we eat affect our abilities to exercise and stay healthy as we age? It can be difficult to separate fact from fiction when it comes to the effects of protein. How much do we need? Is it better to eat protein before or after exercise? And what roles do protein and exercise play in brain function? In today’s episode, Jonathan is joined by Prof. Ben Wall, an expert in nutritional physiology at the University of Exeter. Together, they unpack the latest scientific research on the connection between protein consumption and exercise. Prof. Ben Wall shares his insights into the optimal amount and timing of protein intake for building and maintaining muscle mass, as well as the potential impact of exercise on cognitive function and brain health into later life.  Download our FREE guide — Top 10 Tips to Live Healthier: https://zoe.com/freeguide Timecodes: 00:12 Introduction 28:21 Quick Fire Questions 02:54 Do we need to eat proteins right after exercise? 03:34 What is protein? 04:45 Why should we care about exercise? 05:36 How does exercise help with healthspan? 07:41 What are the benefits of exercise? 07:57 Does exercise improve brain function? 11:23 Where do our muscles come into this conversation? 12:09 What constitutes an unhealthy muscle? 13:00 What's the difference between a healthy and unhealthy muscle? 14:18 How does protein fit into the idea of healthy muscles? 16:03 What about the concept of breaking muscle. Is it good for us? 18:13 Do we need more protein to help build muscle? 20:07 What is the anabolic window and Is it a myth? 21:54 Is it fine to listen to our hunger pangs post exercise? 23:01 How does protein impact menopause and bone health? 25:04 Is there a maximum amount of protein our bodies can absorb? 28:14 What is the right amount of protein to eat? 30:02 What is an 'adaptive response' to exercise? 31:17 How much higher RDA do we need if we are exercising? 33:31 Are we already eating enough protein? 35:51 Why does muscle mass change as we age? 36:18 Do we put on weight when we age? 36:59 How do our bodies respond to protein as we age? 41:38 How to balance protein and exercise 42:33 Where should we get our protein from? 46:43 Plant vs animal based protein products 51:26 Summary 55:12 Goodbyes 55:27 Outro Mentioned in today’s episode: Ingested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men: https://pubmed.ncbi.nlm.nih.gov/19056590/ Anabolic signaling deficits underlie amino acid resistance of wasting, aging muscle: https://pubmed.ncbi.nlm.nih.gov/15596483/ Food for our future: The nutritional science behind the sustainable fungal protein — mycoprotein: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10131050/ Follow Ben on Twitter : https://twitter.com/benjamintwall Follow ZOE on Instagram: https://www.instagram.com/zoe/ Have an idea for a podcast? Contact Fascinate Productions to bring it to life. Episode transcripts are available here.

Transcript

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0:00.0

Welcome to Zoe, Science and Nutrition, where world-leading scientists explain how their

0:04.9

research can improve your health.

0:08.2

Protein, one of the building blocks of life itself.

0:16.0

It plays a vital role in keeping us fit and strong, which as we get older becomes increasingly

0:20.9

important.

0:23.4

Around the age of 40, our muscles begin to shrink, leading to a loss of strength and frailty,

0:29.2

eventually even getting out of a chair becomes impossible.

0:33.9

Eating protein is a necessity to maintain our muscles and prevent this decline.

0:39.4

This is why protein is now so widely discussed, and so many products now proclaim high

0:43.9

in protein.

0:45.8

Myths circulate online about plant versus animal protein, when to eat it if you're exercising

0:51.6

and concerns about whether we're getting enough.

0:54.8

If things weren't confusing enough, brand new scientific discoveries have revealed that

0:58.8

much of what we used to believe is wrong.

1:02.6

In today's episode, we get to the bottom of all of this, with help from an expert guest.

1:08.9

Ben Wall is professor of nutritional physiology at the University of Exeter, where his research

1:13.4

focuses on the role of exercise and dietary protein in supporting healthy aging.

1:20.1

Ben, thank you for joining me today.

1:24.9

So pleasure, thank you for having me.

1:27.2

Why don't we start with something we do every time on this podcast, which is a quick

1:31.8

fire round of questions.

1:33.9

Ben, we know this is very hard for scientists because you have to give us a yes, a no, or

...

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