This new protein of their's has just came out and I'm looked at the ingridents and it has whey/casein protein blend in it. Whey is digested fast I thought you are supposted to have slow absorbtion for night time, why just not all casein.
One reason could be that whey has a highly superior amino acid profile as compared to most other proteins.
Another reason is that it is cheap.
Taste and cheaper.
ON sells 100% casein too.