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Sigma Nutrition Radio

SNP5: Prof. Stuart Phillips - Ask Me Anything! [Preview]

Sigma Nutrition Radio

Danny Lennon

Sigma, Dietetics, Evidencebased, Nutrition, Training, Health & Fitness, Science, Diet, Fitness, Evidence, Bodybuilding, Health

4.8626 Ratings

🗓️ 13 June 2022

⏱️ 18 minutes

🧾️ Download transcript

Summary

This is an "ask me anything" (AMA) episode, with Prof. Stuart Phillips of McMaster University. Prof. Phillips takes questions on protein intake, sources, muscle function, and healthy ageing.

To listen to the full AMA, click here to subscribe to Sigma Nutrition Premium.

Questions answered:

 

  • [04.28] What is muscle protein balance?
  • [05.32] Why is the focus always on muscle protein synthesis?
  • [07.14] Is MPS a good proxy measure for outcomes we care about (e.g. muscle growth/repair)?
  • [10.37] What's the difference between 'whole body protein synthesis' and 'muscle protein synthesis'?
  • [12.57] We're starting to see commercially available whey that has been produced by bacteria engineered to synthesize whey protein directly from nutritional substrate. It seems like we should expect this to have directly comparable effects given the identical molecular structure. Is there any reason to think this bacterially synthesized whey will have any different effects that whey from dairy?
  • [15.50] Does the literature still show that an additional dose of plant-derived protein is required to equate a similar response from animal protein?
  • [26.39] During post-exercise conditions does protein ingestion stimulate MPS for longer than the usual 2-3 hour period reported in rested conditions?
  • [27.49] Considering the growing interest in fasting protocols (both TRF and longer fasting protocols) - what would you recommend in these circumstances for the preservation / growth of muscle mass. Would it differ between IF/TRF and longer (1-3 day) fasts?
  • [34.58] Is it a waste to take too much protein powder at once because some of it won't get absorbed?
  • [42.50] Does protein powder lose some of its quality if boiling water is added due to protein denaturation?
  • [47.05] Would you please share your opinion about how you evaluate protein status in the body?
  • [50.51] I am now over 60 and lift heavy twice a week. What would be a reasonable body fat % for me to aspire to and how much daily protein should I be targetting in my diet?

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Transcript

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0:00.0

Hello and welcome to Sigma Nutrition Radio. I am your host, Danny Levin. You are very welcome to the podcast. This is an expert AMA or

0:24.7

Ask Me Anything episode. And as you are hearing this message, that means you are currently

0:30.1

listening to the podcast on our public feed, which means that you are not listening on our

0:35.8

exclusive premium podcast feed for premium subscribers,

0:39.2

which is where you get access to full expert AMA episodes like this one.

0:44.0

So what you're going to hear today is a bit of a preview of this particular episode.

0:49.1

And these are episodes that we will do now and again, where we bring on a expert who has

0:53.6

probably been on the

0:54.4

podcast before or as an expert in a specific area of nutrition or health science and you as a

1:01.0

premium subscriber to the podcast submit your questions and they will all get answered or certainly as

1:06.5

much as is possible will get answered you submit them directly directly. But of course, you need to be a

1:11.8

premium subscriber to do that. So what you're going to hear today is a preview of it. And if it

1:17.2

sounds something that's interesting to you, at the end of that preview, I'll give you more

1:21.2

information about what a Sigma Nutrition Premium subscription actually includes and what it's for.

1:27.2

Otherwise, you can just see in the description box to this current episode,

1:32.2

just go down there and you'll see a link to premium,

1:34.7

and you can just read quickly what it's about and see if it's something that you are

1:38.6

interested in.

1:39.9

But I'll give a more information on that at the end.

1:43.3

I'll also note that for each of these expert AMA episodes,

1:47.9

a charity donation is made to the charity of choice of our expert.

1:54.0

For today's episode, where I'm going to be talking with Professor Stuart Phillips,

...

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