How long does Whey Protein last?

[PrimalJames]

I have a 5lb container of Optimum Gold Whey Chocolate Protein Formula, I bought it in July, 2009 - it was opened around that time and left on top of the fridge for the past 3 years (so much for working out...),

I just try a bit and it tastes about the same (it was never very sweet to begin with). The expiration date says 05/2011 but I know that is bogus in terms of whether it is safe or not. Figure I might as well use this up and save $45 in the process, but wondering if I need to take more than 1 serving at a time because of its age??

My question is does the bioavailability or quality of the protein or amino acids in the powder go bad after time?

[BDeblo]

No, the bioavailability of the protein shouldn't have diminished.
As far as taking more than one serving as a time, you only have to take as much as you need to supplement because you couldn't your protein needs of 1g/lb lbm

[PrimalJames]

Yea I think I've only tried protein powder once before, what I thought was two servings (4 tbsp) and 16oz of water and ice made my blender nearly explode (its suppose to do 64oz glass jar)...

[BDeblo]

interesting. do you have a shaker bottle? or a glass and spoon?

[daniildotca]

Don't you have a scoop in your protein jar? That should be the serving size. Am I stating the obvious here...
As for expiration date, should be fine in terms of composition, but see how it feels in the stomach...

[PrimalJames]

Don't you have a scoop in your protein jar? That should be the serving size. Am I stating the obvious here...
As for expiration date, should be fine in terms of composition, but see how it feels in the stomach...

Yea I've got a shaker, just didn't realize there would be so many bubbles.

[jhstevens]

I just found the same stuff, Professional strength, not the regular. Anyways I just took two scoops in one glass of skim milk. Talk about chunky. I feel a little "shaky" on the stomach but i'm going to do my workout now and then go on my 30 mile bike ride in about an hour. I'll post again and let everyone know how it work being about 3+ years old lol.

[jhstevens]

Okay, So i had two scoops of my "old"(about 4 years) of whey chocolate protein before my lifting, and ab workout followed by my 30 ish mile bike ride. The only bad things i found on this were that the texture of the mixture was pretty chunky. I seem to recall that being normal. taste seemed about the same. I did take it right before all the workout so it seemed to be a little harsh on the stomach. I did have to stop my ab exercise at one point. But I honestly think drinking milk right before working out isnt the best of ideas anyways. I did it again and took it about 30 mins prior and I had NO trouble at all.

I think it's safe to say as along as you take it in about 15 mins at a minimum before your workout you will be FINE! On a further note, for those worried about after affects as far as the rest of the digestion process, I noticed no changes.

[Bob_Ross42]

this is good to know that you did not die.

i will use my old stuff now. thanks