Optimum Nutrition Coupons, Promo Codes & Discounts 2025
Optimum Nutrition
(5 ratings)
Store policies
Optimum Nutrition owns and operates its own manufacturing facilities to ensure high product quality.
The brand provides detailed information on its high-quality ingredients, including composition and sourcing.
A 60-day satisfaction guarantee is offered for products bought from its official website.
Returns are accepted within 30 days if 75% or more of the product is unused.
Optimum Nutrition
Verified
$3.50 Off Gold Standard Casein at Kroger
On 2 lb tubs of Creamy Vanilla flavor.
View offer on Benny
Expires
11/4/25
9
used in the last hour
Used
51
times
Optimum Nutrition
Verified
$5 Off Gold Standard Whey at Walmart
On 2 lb tubs of Double Rich Chocolate flavor.
View offer on Benny
Expires
11/4/25
22
used in the last hour
Used
53
times
Optimum Nutrition
Verified
$5 Off Gold Standard Whey at Costco
On 5 lb tubs of Vanilla Ice Cream flavor.
View offer on Benny
Expires
11/4/25
16
used in the last hour
Used
65
times
Optimum Nutrition
Verified
$4.50 Off Serious Mass at Sam's Club
On 12 lb bags of Vanilla flavor.
View offer on Benny
Expires
11/4/25
17
used in the last hour
Used
71
times
Optimum Nutrition
Verified
$3.50 Off Gold Standard Casein at Publix
On 4 lb tubs of Chocolate Supreme flavor.
View offer on Benny
Expires
11/4/25
20
used in the last hour
Used
74
times
Optimum Nutrition
Verified
$3 Off Gold Standard Isolate at Meijer
On 1.6 lb tubs of Chocolate Bliss flavor.
View offer on Benny
Expires
11/4/25
19
used in the last hour
Used
79
times
Optimum Nutrition
Verified
$4.50 Off Serious Mass at Target
On 6 lb bags of Chocolate Peanut Butter flavor.
View offer on Benny
Expires
11/4/25
24
used in the last hour
Used
87
times
Optimum Nutrition
Verified
$4 Off Gold Standard Plant Protein at Albertsons
On 2 lb tubs of Vanilla flavor.
View offer on Benny
Expires
11/4/25
10
used in the last hour
Used
88
times
Optimum Nutrition
Verified
$5 Off Gold Standard Whey at BJ's
On 10 lb bags of Extreme Milk Chocolate flavor.
View offer on Benny
Expires
11/4/25
26
used in the last hour
Used
90
times
Optimum Nutrition
Verified
$4 Off Gold Standard Plant Protein at Safeway
On 1.5 lb tubs of Chocolate flavor.
View offer on Benny
Expires
11/4/25
19
used in the last hour
Used
99
times
How It Works
STEP 1
Download Benny
Download the Benny app on iOS or Android. It’s free and just takes a minute.
STEP 2
Scan Your Receipt
Snap a photo of your receipt after shopping. Benny identifies eligible purchases matching the coupon.
STEP 3
Get Paid
Get cash back with the amount of the coupon directly to your Benny account in the same day.
Download Benny
Muscle Milk
Verified
$3 Off Muscle Milk Pro Series Protein Powder at Sam's Club
On Muscle Milk Pro Series Protein Powder.
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Oatly
Verified
$3 Off Oatly Frozen Dessert at Publix
On Oatly Frozen Dessert.
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Horizon Milk
Verified
$1.50 Off Horizon Organic Whole Milk at Walmart
On Horizon Organic Whole Milk.
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Fairlife Milk
Verified
$3 Off Fairlife Chocolate 2% Ultra-Filtered Milk 14oz at Meijer
On Fairlife Chocolate 2% Ultra-Filtered Milk 14oz bottles.
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Muscle Milk
Verified
$2.50 Off Muscle Milk Gainer Protein Powder at Meijer
On Muscle Milk Gainer Protein Powder.
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Fairlife Milk
Verified
$3 Off Fairlife Chocolate 2% Ultra-Filtered Milk at Target
On Fairlife Chocolate 2% Ultra-Filtered Milk bottles.
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Frequently Asked Questions
