i'm sorry for asking what might be a daft question. I've searched through the forum to see if I could find the specific yes/no answer to my question....

Is Whey Protein Powder the same as Whey Protein Isolate? I always see WPI in recepies. I bought some GNC Whey Protein Powder which is 2.1 grams carb per scoop.

Is there any difference?

Thanks
Luscious

I am assuming Whey protein powder is whey protein conentrate...
Whey Protein Powders (or concentrates) are from the same raw ingredients but are processed at lower (cheaper) temperatures. As a result they contain less protein, ranging from 40 -80% protein. It is a poorer quality product and can give belly aches.

Pure Whey Protein Isolate is almost entirely (98%+) protein and are lactose-free, unlike concentrate. If pure, it should be CARB FREE - any carbs are from sweetners or bulking agents.

Isolate is also supposed to have more health benefits. The way concentrate is processed damages the amino acid profile, and the (microfiltered) isolate has a better balance of good things you need.

Isolates also tend to disolve better in water (good for shakes) wheras concentrate has a lower saturation rate (ie - some may disolve, but there may be sediment).

That's the difference. As for cooking with the stuff, I don't know.
I would add, that if you want to buy a good protein powder read the ingredients - the best quality stuff should be mostly isolate. Low quality drinks seem 'cheaper' but bulk themselves up with cheaper ingredients like protein concentrate, even soy flours etc..