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westmi 35.4K Views
Aug 11, 2025 5:02 PM

Costco Members: 5.64-lbs Optimum Nutrition Gold 100% Whey Protein Powder

$55

$63

12% off
+ Free Shippingat Costco Wholesale
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Deal Details
Costco Wholesale has for its Members: 5.64-lbs Optimum Nutrition Gold Standard 100% Whey Protein Powder for $54.99. Shipping is free.

Thanks to community member westmi for sharing this deal.

Note: This item may be available in-warehouse at a lower non-delivered price.

Available:Features:
  • 24G Protein
  • Protein Source: Blend of Whey Protein Isolate, Whey Protein Concentrate, & Hydrolyzed Whey Protein
  • 5.5g of Naturally Occurring BCAAs
  • 1g of Naturally Occurring EAAs
  • Gluten Free, rBST Free

Editor's Notes

Written by qwikwit | Staff
  • This price matches a previous and popular +84 Frontpage Deal from December.
  • This product has a rating of 4.7 out of 5 stars, based on customer reviews.
  • The sale is valid through 8/24/25. While supplies last. Limit 2 per member.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by westmi
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: 5.64-lbs Optimum Nutrition Gold Standard 100% Whey Protein Powder for $54.99. Shipping is free.

Thanks to community member westmi for sharing this deal.

Note: This item may be available in-warehouse at a lower non-delivered price.

Available:Features:
  • 24G Protein
  • Protein Source: Blend of Whey Protein Isolate, Whey Protein Concentrate, & Hydrolyzed Whey Protein
  • 5.5g of Naturally Occurring BCAAs
  • 1g of Naturally Occurring EAAs
  • Gluten Free, rBST Free

Editor's Notes

Written by qwikwit | Staff
  • This price matches a previous and popular +84 Frontpage Deal from December.
  • This product has a rating of 4.7 out of 5 stars, based on customer reviews.
  • The sale is valid through 8/24/25. While supplies last. Limit 2 per member.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by westmi

Community Voting

Deal Score
+73
Good Deal
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Top Comments

ShrewdHealth3620
3Comments
10Reputation
$49 in warehouse.
Go to Comment
Dmitry92
192Comments
39Reputation
I really hope Costco starts selling the Double Rich Chocolate flavor at some point. 🙏 It's the best chocolate protein I've ever tried, rich but not overly sweet. I usually grab the 10lb bag from Amazon whenever it's on sale.
Go to Comment
chandu1256
920Comments
155Reputation
This and it doesn't have Sucralose for those want to avoid it
Go to Comment

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81 Comments

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Aug 11, 2025 9:43 PM
39 Comments
Joined May 2019
teenhclAug 11, 2025 9:43 PM
39 Comments
I prefer this one over double rich chocolate. People have different taste
Aug 11, 2025 10:15 PM
11.2K Comments
Joined Sep 2014
ash78Aug 11, 2025 10:15 PM
11.2K Comments
Quote from FairWriter8849 View quoted comment :
At over 5.5 lbs I thought this stuff would last forever. I told my wife when it finally ran out and she said, "No whey"
Where there's a will, there's a whey.
1
Aug 11, 2025 10:38 PM
1.9K Comments
Joined Jun 2009
SiXiamAug 11, 2025 10:38 PM
1.9K Comments
Quote from teenhcl View quoted comment :
I prefer this one over double rich chocolate. People have different taste
Are you a coffee drinker? I don't like the extreme milk chocolate cause it tastes like mocha.
Aug 11, 2025 10:52 PM
2.8K Comments
Joined Nov 2011
TaintAug 11, 2025 10:52 PM
2.8K Comments
Quote from CrimsonFeather358 View quoted comment :
Highly recommend Ascent's chocolate from Costco if you can find it (my store stopped stocking it for some reason,) since the price is great compared to MSRP/elsewhere. Slightly more expensive per serving than ON, but it was a premium I was willing to pay for cleaner ingredients and a better consistency when mixed. It's really sweet, though. I think they should've called it Chocolate Marshmallow, to give you an idea of the flavor/sweetness.
I found Ascent to have an overpowering stevia taste. Prefer Levels for better ingredients than ON.
Aug 12, 2025 12:03 AM
136 Comments
Joined Sep 2013
shadesrulzAug 12, 2025 12:03 AM
136 Comments
Is this 53¢ per oz in store?
Aug 12, 2025 12:06 AM
1.6K Comments
Joined Feb 2014
amoney805Aug 12, 2025 12:06 AM
1.6K Comments
Costco needs more Whey Isolate options without sucralose for the lactose intolerant.
Aug 12, 2025 1:02 AM
192 Comments
Joined Nov 2011
IVSUAug 12, 2025 1:02 AM
192 Comments
Per OP: This item may be available in-warehouse at a lower non-delivered price.

Is anyone able to confirm this? Thanks!

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Aug 12, 2025 1:08 AM
2.3K Comments
Joined Nov 2016
holly_mollyAug 12, 2025 1:08 AM
2.3K Comments
Quote from shadesrulz View quoted comment :
Is this 53¢ per oz in store?
Quote from IVSU View quoted comment :
Per OP: This item may be available in-warehouse at a lower non-delivered price.

Is anyone able to confirm this? Thanks!
go to costco mobile app. check section "warehouse". search the product you in that tab. that will show you stock and price of in store items. change stores to find out prices and stock in different stock.
Note- the search in app is designed like an intern was developing it. you need to search with brand name or play around with keywords if you do not find it.
Aug 12, 2025 1:13 AM
2.8K Comments
Joined Apr 2007
chasemyaccordAug 12, 2025 1:13 AM
2.8K Comments
Quote from ready4ward View quoted comment :
It's my favorite chocolate flavor protein out of anything I've tried at Costco but I've yet to try Levels and Ascent
Don't try ascent. Tastes so much more artificial. I regret buying it. At least the chocolate version.
Aug 12, 2025 1:16 AM
192 Comments
Joined Nov 2011
IVSUAug 12, 2025 1:16 AM
192 Comments
Quote from holly_molly View quoted comment :
go to costco mobile app. check section "warehouse". search the product you in that tab. that will show you stock and price of in store items. change stores to find out prices and stock in different stock. Note- the search in app is designed like an intern was developing it. you need to search with brand name or play around with keywords if you do not find it.
Had no idea I can do this on the app. Will check when I get a chance later. Repped and thank you!
1
Aug 12, 2025 1:24 AM
667 Comments
Joined Dec 2004
beirbuddycomAug 12, 2025 1:24 AM
667 Comments
How do these brands compare to Orgain? I mix the chocolate in water and it tastes great to me.
Aug 12, 2025 2:40 AM
1.5K Comments
Joined Sep 2017
slickdealgbAug 12, 2025 2:40 AM
1.5K Comments
Quote from ash78 View quoted comment :
Where there's a will, there's a whey.
The whey to get started is to quit talking and begin doing.— Walt Disney
2
Aug 12, 2025 3:08 AM
806 Comments
Joined Dec 2011
ready4wardAug 12, 2025 3:08 AM
806 Comments
Quote from Taint View quoted comment :
I found Ascent to have an overpowering stevia taste. Prefer Levels for better ingredients than ON.
Thanks for the info. I am not a fan of stevia and I notice Ascent uses only stevia as the sweetener whereas Levels uses monkfruit and stevia. ON uses sucralose and ace-k and is indistinguishable from actual sugar to me when mixed with milk.
Aug 12, 2025 3:13 AM
779 Comments
Joined Nov 2008
magic168Aug 12, 2025 3:13 AM
779 Comments
Quote from beirbuddycom View quoted comment :
How do these brands compare to Orgain? I mix the chocolate in water and it tastes great to me.
If you like Orgain, these will not taste like it. I personally find Orgain really difficult to drink, but it tastes like any other vegan protein (the rice or pea protein has a very specific flavor that's hard to mask). So if you like Orgain, you should try other vegan proteins because those will be closer in flavor to what you like versus a whey protein.

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Aug 12, 2025 3:39 AM
388 Comments
Joined Aug 2017
superchonggoAug 12, 2025 3:39 AM
388 Comments
There was a previous sale of MuscleTech in Amazon before that has more value (price per lb) but regretted that one as it's too sweet. I'm ordering this one because the taste is the better of all the ones that I have purchased.

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