i use georges protein and if i make a shake and put it in the fridge will i loose the benefits of it or will the powder sink to the bottom??how long can i keep it there without it going bad??thanks
Drink it immediately. Dont let it sit. You wont be able to tell the difference by taste or looks, but it will not be as effective as if you just mixed it.
there are no negative effects in premixing protein drinks in that manner with the exception of some settling. in a simple solution as that there would be no denatureing of the protein or other adverse effects. just shake and drink !