It is well documented that Whey is an excellent protein source for exercise performance...but what about Casein?? Which should you be taking? Should you be taking both?

We aim to demystify the data and the 'media speak' on this subject so you as a runner can make an informed decision on which...if either...is best for your running goals.

A BIG thank you to our Show Sponsor AMAZING JANE ACTIVE WEAR. Please use discount code RHH10 for 10% off ALL purchases at www.amazingjane.com

SHOW NOTES

(06:14)

Defining Whey and Casein and outlining their relevance to sports performance:

Whey and Casein are the two types of protein found in milk with Casein making up

80% of the protein and Whey making up the other 20%

(11:02)

Considering whether Whey and Casein should be taken together or separately to gain optimal benefit from each

(19:49)

FEMALE FCTORS

The ISSN (International society of sports nutrition) released a Position Stand earlier this year (2023) on the nutrition concerns of the female athlete, which contained excellent guidelines on protein intake around the menstrual cycle and peri/menopausal phases of life. Several highlights from this paper include:

Peri and post-menopausal women, regardless of sport, should aim for the upper end of the range of current recommended guidelines which is 1.8 – 2.2g per Kg of body weight per day
The ISSN suggest meals being moderate in protein (∼0.3 g protein per Kg of body weight) but eaten every 3 hours to maximise muscle protein repair and remodelling during prolonged (>24 h) recovery periods
Eating protein rich foods as close to the end of exercise as possible will support muscle building. The ISSN suggest 6-10g protein per kg of body weight

(25:27)

Outlining additional protein recommendations for the mid-life female runner and highlighting protein rich foods with a high content of leucine

(37:18)

Emphasising what to consider when purchasing a whey or casein supplement powder including:

The reasons for taking one
Taste
Always read the label before purchasing
Marketing and Sales Spin

(46:21)

KEY TAKEAWAYS

Firstly, just as a reminder….Whey and Casein are the two types of protein found in milk with Casein making up 80% of the protein and Whey making up the other 20%
Casein is slowly released and induces a prolonged release of amino acids whereas Whey is a soluble and rapidly-digested protein so is more fast acting
It is thought that Whey is best consumed immediately after exercise to promote MPS whereas Casein is best taken before sleep to support overnight muscle recovery and muscle adaptation
If a casein or whey supplement powder is what is most practical for you then we would recommend you choose the best quality powder you can afford to optimise absorption and bioavailability of the AAs contained within
Always read the label before purchasing - to ensure the ingredients are natural. Look out for bulking agents, chalks and sweeteners including artificial sweeteners – AVOID THEM.
Finally, just remember that although casein and whey have been well researched for their positive effects on athletic performance, the current cornerstone approach of any skeletal muscle hypertrophy (building) diet is to have a sufficient overall protein intake alongside regular exercise training!

Download our FREE E book TOP Running Snacks and Nutrient Timing to Fuel Peak Performance

Related Topics:

Macronutrients to Help a Runner go Faster and Longer

Protein Powders: Do Runners Need Them?

The Vegan Diet for Running

Disclaimer:

The suggestions we make during this episode are for guidance and advice only, and are not a substitute for medical advice or treatment. If you have any concerns regarding your health, please contact your healthcare professional for advice as soon as possible.

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www.runnershealthhub.com

Protein for Runners: Whey vs Casein

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