Anyone know?

If protein powder loses it's potency, after it has been mixed for awhile?

Hugs

Donna

Very interesting question.  I don't have an answer, but I hope someone else does.

I have wondered about this too. I know someone who mixes up a batch for herself and her husband the night before so its ready for breakfast and thinks its fine.  I sometimes mix some and freeze it and then nuke it a bit and blend it for a frosty texture. But I have noticed that it doesn't keep in the freezer that long - gets sort of an odd texture thats kind of gooey and tastes "off". Consider that its whey which is milk based so it might not keep that long.  A good question for someone to ask their dietician.

diane

No, it doesn't. It does 'denature' though.

Denaturing is when the secondary and teriary amino acid chains break down. People hear "break down" and think "the protein isn't good!" but it's not that kind of breakdown.

The best example of denaturing I have found is when you fry an egg. The egg 'white' turns from clear to white because the heat denatures it.

Of course most people don't think a cooked egg has less protein than a raw one and it's the same way with our shakes. They may get gross over time, but the protein is still protein.