An instant mixing time release protein product made from fresh skimmed milk. It is not to be confused with acid casein or caseinates made using manufacturing processes which can denature the protein. The protein found in micellar casein is un-denatured, providing approximately 80% casein protein and 20% whey protein. In a ground breaking study carried out by Dr Yves Boirie, the differences in metabolic responses of whey protein and casein were individually observed over a 7 hour period in 16 young and healthy volunteers. The findings showed that both casein and whey have very different applications when it comes to maintaining and building muscle tissue. Research highlights:
The reason for casein's ability to sustain such a lengthy release of amino acids is because of its unique digestibility. It forms a gel in the stomach, slowing the transit time in the digestive system and subsequent digestion of the protein. These findings demonstrate casein as the perfect protein source when a positive nitrogen balance is preferred for more than 3 hours. e.g when you are sleeping, or a prolonged period during the day, whereas whey protein is seen as the preferred protein source for increasing protein synthesis. e.g between meals and after workouts.
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