Just don’t drink them together.
I tend to do this. Why the suggestion not to pair them?
Casein protein takes up to 4-5 hours to go through the metabolic process, whey takes 20-60 minutes to be fully coursing through your system, AA spikes, and completed with the metabolic (synthesis/oxidation) phase.
When you take both, the casein can act as a slow agent, or ‘binds’ the whey reducing the speed it can act.
In other words, the strength of whey protein is that it floods your system with AA’s and synthesis FAST. Casein does this at a much, much slower rate and at a much less impact/spike.
It gets a lot more complicated, but this is the basic explanation of these two particular proteins. There is also some division of thought when it comes to combining these two together. I am sure some will disagree with me here, but that’s the whole point of havinf a public forum on the issue afterall.[/quote]
Proteins get digested separately, each does not interfere with the other. Whey spikes protein balance, casein prevents a negative balance due to its extended period of digestion.