Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredMerryPencil868 posted Apr 05, 2026 11:46 AM
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
expiredMerryPencil868 posted Apr 05, 2026 11:46 AM

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

& More + Free S&H

$55

$69

20% off
Costco Wholesale
42 Comments 17,119 Views
Visit Retailer
Good Deal
Save
Share
Deal Details
Costco Wholesale has for its Members: ~5.5-lbs Optimum Nutrition Gold Standard 100% Whey Protein Powder for $54.99. Shipping is free.

Thanks to community members MerryPencil868 & SlickDyu for sharing this deal.

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
  • The sale is valid 4/5/26. 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 MerryPencil868
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: ~5.5-lbs Optimum Nutrition Gold Standard 100% Whey Protein Powder for $54.99. Shipping is free.

Thanks to community members MerryPencil868 & SlickDyu for sharing this deal.

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
  • The sale is valid 4/5/26. 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 MerryPencil868

Community Voting

Deal Score
+66
Good Deal
Visit Retailer

Leave a Comment

Unregistered (You)

Top Comments

livingaboard
1850 Posts
110 Reputation
I've used this protein powder for several years and I don't have an issue with the chocolate flavor. Let's not kid ourselves and pretend that all the protein shakes need to taste like 1000 calorie milkshakes. This is something where I put 7 ounces of water or so in shaker with a few ice cubes and it takes me like five seconds to drink it. So I'm not tasting it that long.

42 Comments

Sign up for a Slickdeals account to remove this ad.

Apr 05, 2026 04:27 PM
1,427 Posts
Joined May 2010
MoneymitchApr 05, 2026 04:27 PM
1,427 Posts
It's never for vanilla
1
4
Apr 05, 2026 04:29 PM
4 Posts
Joined Feb 2026
WittyTest1471Apr 05, 2026 04:29 PM
4 Posts
I have this flavor. Absolutely nasty.
3
Apr 05, 2026 04:38 PM
400 Posts
Joined Aug 2006
dadoc04Apr 05, 2026 04:38 PM
400 Posts
Quote from Moneymitch :
It's never for vanilla
Lmaooo came to say the exact same
2
Apr 05, 2026 04:46 PM
280 Posts
Joined Dec 2018
SlickDyuApr 05, 2026 04:46 PM
280 Posts

Our community has rated this post as helpful. If you agree, why not thank SlickDyu

Quote from dadoc04 :
Lmaooo came to say the exact same
If you search for the vanilla flavor, it also has the $14 off savings. Op mentioned it in the description.
https://www.costco.com/p/-/optimu...?langId=-1
2
Apr 05, 2026 04:51 PM
2,774 Posts
Joined Aug 2003
HellyeaApr 05, 2026 04:51 PM
2,774 Posts
Never tried this brand. Usually get organize orgain. I don't like the orgain vanilla and prefer the chocolate. How do these taste?
Apr 05, 2026 04:51 PM
2,774 Posts
Joined Aug 2003
HellyeaApr 05, 2026 04:51 PM
2,774 Posts
Quote from Moneymitch :
It's never for vanilla
Vanilla is also available same price
Apr 05, 2026 05:03 PM
1,850 Posts
Joined Sep 2005
livingaboardApr 05, 2026 05:03 PM
1,850 Posts
Quote from Hellyea :
Never tried this brand. Usually get organize orgain. I don't like the orgain vanilla and prefer the chocolate. How do these taste?
I've used this protein powder for several years and I don't have an issue with the chocolate flavor. Let's not kid ourselves and pretend that all the protein shakes need to taste like 1000 calorie milkshakes. This is something where I put 7 ounces of water or so in shaker with a few ice cubes and it takes me like five seconds to drink it. So I'm not tasting it that long.

Sign up for a Slickdeals account to remove this ad.

Apr 05, 2026 05:36 PM
757 Posts
Joined Jun 2008
briannawApr 05, 2026 05:36 PM
757 Posts
I'm tired of buying crappy vanilla flavors, trying to find a good one. Although this one seems to get good reviews, so I wonder if I should try it. Any thoughts on the vanilla flavor?
Apr 05, 2026 05:56 PM
4 Posts
Joined Aug 2020
EagerSnow733Apr 05, 2026 05:56 PM
4 Posts
Quote from WittyTest1471 :
I have this flavor. Absolutely nasty.
It really is. The savings savings of this vs dymatize isn't worth it for the awful fake chocolate flavor
Apr 05, 2026 06:00 PM
1 Posts
Joined Mar 2022
FabulousLlama1095Apr 05, 2026 06:00 PM
1 Posts
Quote from WittyTest1471 :
I have this flavor. Absolutely nasty.
I absolutely disagree this is the only flavor I've liked in any brand
Apr 05, 2026 06:11 PM
100 Posts
Joined Nov 2016
RogerP5065Apr 05, 2026 06:11 PM
100 Posts
Is this just for today? $4 cheaper in store
Apr 05, 2026 06:20 PM
304 Posts
Joined Apr 2014
supertek75Apr 05, 2026 06:20 PM
304 Posts
Quote from RogerP5065 :
Is this just for today? $4 cheaper in store
Today only. Shows up as $69 in store (via app), but all Costcos are closed for Easter.
Apr 05, 2026 06:29 PM
4 Posts
Joined Feb 2026
WittyTest1471Apr 05, 2026 06:29 PM
4 Posts
Quote from FabulousLlama1095 :
I absolutely disagree this is the only flavor I've liked in any brand
I've had batches that differ maybe the case
Apr 05, 2026 06:29 PM
107 Posts
Joined Apr 2009
cdtankApr 05, 2026 06:29 PM
107 Posts
Orgain is also on discount for today only it looks like. I wanted to switch and try whey, ive been doing the orgain for many years. I do like the chocolate taste and wanted to try this whey one but when i looked i saw orgaian... why switch when i know i will like it! Cheers.

Sign up for a Slickdeals account to remove this ad.

Apr 05, 2026 06:31 PM
109 Posts
Joined Jun 2021
BrightSummer9658Apr 05, 2026 06:31 PM
109 Posts
Never the double chocolate, the best flavor
2

Leave a Comment

Unregistered (You)

Related Searches

Health & BeautyProtein Powder & ShakesOptimum NutritionCostco Wholesale

Popular Deals

See All
Found by phoinix
Apr 24, 2026 05:55 AM
Forum Thread
$18.99 | Intex Dura-Beam Standard Pillow Top Airbed Twin Size at Woot!$19$69
72% off
0
Found by phoinix
Apr 23, 2026 11:10 AM
Forum Thread
$17.40* | Michael Jackson Number Ones (Vinyl, 2 LP) at Amazon$17$29
41% off
3
Found by itsamazeling
Apr 24, 2026 08:35 PM
Forum Thread
Banana Republic Women's Kick Flare High-Rise Vegan Suede Cropped Pant $13.48 + Free Shipping on $50+$13$90
85% off
2
Found by phoinix
Yesterday 10:18 PM
Forum Thread
$549* | 128GB Google Pixel 10 at Amazon$549$799
31% off
1
Found by jk6812
Today 04:23 AM
Forum Thread
LEGO Star Wars Rebel U-Wing Starfighter Building Set (75399) $55.99 + Free Shipping$56$70
20% off
0

Trending Deals

See All
Found by phoinix
Yesterday 10:13 PM
Forum Thread
$14.99* | 3.4-Oz Lattafa Suqraat Eau de Parfum Long-Lasting Fragrance for Men at Amazon$15$26
42% off
8
Found by tunabreath
Yesterday 08:29 PM
Forum Thread
144 pack, 10 ft, Amazon Basics RJ45 Cat-6 Ethernet Patch Cable, Gold-Plated, $81.57, FS Prime, Woot!$82
3
Found by gaamn114
Today 01:14 AM
Forum Thread
Purolator A36271 PurolatorONE Advanced Air Filter $6.07 + Free Shipping w/ Prime or on $35+$6.07$12
49% off
1
Found by Rokket
Yesterday 10:52 AM
Forum Thread
12-Pack 16-Fl Oz C4 Performance Energy Drink (Grape Popsicle) $12 w/ S&S + Free Shipping w/ Prime or on $35+$12$28
57% off
6
Found by phoinix
Yesterday 10:44 PM
Forum Thread
$927.71 | ASUS ProArt Display 32” 6K Professional Monitor (PA32QCV) - IPS, 6K (6016 x 3384), 98% DCI-P3 at Amazon$928$1,299
28% off
3