The Benefits of Casein Protein Powders

Having difficulties putting on real muscle mass? Casein can make a real difference and allow you to take your training to the next level. This article explores the benefits of adding casein protein to your diet plan.


The Benefits of Casein

1. Slow Digesting Protein

Casein is a slow digesting protein, it clots in stomach, forming small round particles of protein (1).

The casein therefore passes slowly from your stomach to the small intestine, meaning the amino acids in casein enter the bloodstream at a sustained rate.

2. Muscle Building, Strength & Recovery

Just one scoop of micellar protein contains a massive 24g of protein. Protein has been shown in tons of scientific studies to increase transportation and the development of lean muscle mass. During a workout, in order to make progress, muscle fibres must be torn and repaired.

Through providing an extensive Branched chain amino acid profile, including leucine, iso leucine and valine, casein allows for the repair and recovery of muscle fibres, which cannot only decrease muscle soreness, but also help you achieve your goals at a quicker rate.

Through helping to shorten recovery time, casein protein can help you to go that extra mile in the gym and increase strength and power. Both casein and whey protein play important roles within muscle development- but due to differing properties, each should be part of your sports supplement regime.

3. Fat Loss

Protein is known to be the most filling macro nutrient, whereby for those taking part in intense physical activity and weight training between 1- 2 g per kg of body weight is recommended.

By consuming casein you can get a good source of protein without excess fat and carbohydrates. Studies have shown that increasing more protein can promote weight loss and decrease body fat.


4. Bone & Teeth Health

Believe it or not, consuming casein protein can also benefit your dental health! Studies have shown that casein consumption can help to boost teeth enamel, helping to reduce acid erosion.

5. Overnight Protein – Casein Before Bed

Scientific studies show that casein protein can take up to 7 hours to digest (2), which is just about as long as the average person sleeps every night. Casein extends the release of amino acids into the bloodstream, improving nitrogen retention (which is necessary for protein synthesis).

Remember, however, that any period spent sleeping is time that your body isn’t getting any new nutrients. As you are probably aware, if you run out of amino acids in your bloodstream, your body can start breaking down muscle proteins to fuel itself.

Taking casein protein before going to bed is an excellent way of avoiding protein breakdown and amino acid oxidation. According to a study published in Medicine & Science in Sports & Exercise, people who take 40 grams of casein 30 minutes before going to bed are able to stimulate their protein synthesis (the process responsible for building muscle) to a higher degree (3).


What Is Casein?

So, we’ve been over the benefits, but you may be wondering what casein actually is. Casein is the main protein in milk, accounting for roughly 80% of the total protein.

Just like whey, casein protein has a high biological value which means it has all the essential amino acids necessary for all of your processes that require protein.


The Benefits of Casein and Whey Protein Powders

Many people ask whether they should be taking casein or whey in order to boost their muscle gains. But why not just combine the two? Casein might not have as strong an anabolic effect as whey in terms of its immediacy; however, it can extend its anabolic effects for many hours.


How To Take Casein

Casein protein powders are excellent not just for avoiding muscle catabolism but also for extending the protein synthesis rate. Try combining it with whey protein after your workouts or take it about 30 minutes before you go to sleep.

Our articles should be used for informational and educational purposes only and are not intended to be taken as medical advice. If you’re concerned, consult a health professional before taking dietary supplements or introducing any major changes to your diet.


(1) – Am J Physiol Endocrinol Metab, March 2011, Vol. 300, no. E610
(2) – PNAS, vol. 94 no. 26, 14930–14935
(3) – Med Sci Sports Exerc. 2012 Aug;44(8):1560-9
(4) – Am J Physiol Endocrinol Metab. 2011 Jan;300(1):E231-42

Gareth Gray

Gareth Gray

Experienced Sports Nutrition Technologist

Gareth Gray is an experienced sports nutrition new product development technologist. He holds a Bachelor of Science in Nutrition and Health and a Master of Science in Sports and Exercise Nutrition.

Gareth’s scientific research expertise involves the investigation into the effects of recovery drinks upon sports performance and recovery. He has several years’ experience in designing, formulating and developing sports nutrition products using evidence-based research, from laboratory testing to full-scale production and manufacturing. He regularly attends continuing professional development events and sports nutrition conferences to ensure his practise remains at the highest level.

Find out more about Gareth’s experience here.

In his spare time, Gareth enjoys working on his own physique in the gym, as well as cooking nutritious meals – where he believes balance is key and advocates the odd cheat meal now and again.

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