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With so many different types of protein on the market, it can be difficult to understand the benefits of each. Like whey, casein is a type of protein found in cows milk. It is a high quality, bioavailable protein that contains all of the essential amino acids. Unlike whey protein which is rapidly digested, casein is slowly digested and absorbed. This is due to the clumping that occurs when it reaches the acidic environment of our stomachs. The slow digestion of casein provides a sustained release of amino acids into the blood stream, which in turn provides the building materials for muscle repair and growth.
Studies have suggested that diets high in protein result in fewer periods of waking throughout the night when compared to higher carbohydrate diets. Taking casein before bed can increase your dietary protein intake and help improve your sleep.
Choosing casein instead of whey in the evenings will result in a slow release of protein throughout the night. This keeps overnight hunger at bay and decreasing sleep restlessness. This aspect of casein would be of most benefit to those who are losing weight on a calorie deficit and more prone to before bed and night time hunger.
Tryptophan is an amino acid that forms the building block of many proteins, including casein. Studies have found that a small dose of tryptophan (1g) improves sleep quality due to acting as a precursor to the relaxing neurotransmitter 5-HT which in turn is a precursor to melatonin. Although the mechanisms are not fully understood, evidence shows that this small dose of tryptophan can improve the speed at which someone falls asleep and the quality of that sleep.
So there you have the three reasons taking casein can help improve your sleep. If you’ve decided that you could benefit from including casein in your supplement stack, VPA has you covered. You can buy our micellar casein, or if you like a sweet treat try our protein mousse which comes in three delicious flavours.
