Optimum Nutrition Promo Codes and Coupons October 2025

Optimum Nutrition

Optimum Nutrition is a leading sports nutrition brand known for its high-quality protein powders, pre-workouts, and supplements. Founded in 1986, the company has become one of the most trusted names in fitness nutrition, particularly famous for their Gold Standard Whey protein. They offer a wide range of products designed to support athletic performance, muscle recovery, and overall fitness goals.

optimumnutrition.com

Today's Optimum Nutrition discount codes

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20% off

596 uses

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worked 4 months ago

20% Off Storewide at Optimum Nutrition

20% off

247 uses

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worked 4 months ago

20% Off Storewide at Optimum Nutrition

50% off

4889 uses

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worked about 23 hours ago

50% Off Storewide at Optimum Nutrition

20% off

2246 uses

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worked 1 day ago

20% Off Storewide at Optimum Nutrition

Featured Optimum Nutrition Products

GOLD STANDARD® 100% Plant

Put the World’s #1 Sports Nutrition brand to the test⁴. GOLD STANDARD 100% Plant Protein supports muscle with 24g of quality plant protein and 20 amino acids – including all 9 essential amino acids – all with the unparalleled GOLD STANDARD® taste, texture, and consistency you've come to expect only from OPTIMUM NUTRITION®¹. Relying on a thoughtful blend of pea, rice, and fava bean proteins, it’s crafted for anyone trying to meet daily protein goals – but it's especially valuable for people on a plant-based diet who exercise regularly and want additional protein for post-workout muscle support. Choose from great-tasting Creamy Vanilla and Rich Chocolate Fudge flavors – each mixing into a silky-smooth shake with only a glass and spoon. With 0g sugar⁵ and no artificial colors, flavors, or sweeteners, GOLD STANDARD 100% Plant Protein is the only choice for anyone who demands the highest quality vegan nutrition supplements available¹. Benefits [24g of plant protein per serving to support muscle¹, 20 amino acids – including all 9 essential amino acids, Vegan protein from a quality blend of pea, rice, and fava bean proteins, Gluten free, 2 great-tasting flavors and easy mixing with only a glass and spoon, 0g sugar⁵ with no artificial colors, flavors, or sweeteners]

USD 36.99

GOLD STANDARD 100% WHEY™ Sample Packets

Need performance nutrition that travels with you? Our single-serve sachets fit anywhere—gym bags, desk drawers, travel kits, or emergency protein stashes. Each sample delivers the same premium formula as our full-size containers, so you never have to compromise on quality, even on the go. GOLD STANDARD 100% WHEY™ Protein powder supports muscle and post-workout recovery with 24g of quality protein and 5.5g of naturally occurring BCAAs per serving¹. It’s crafted to be a complete, fast-digesting protein with whey protein isolate as the primary source – a filtered form of whey that can support protein goals for people at every level of fitness – from daily runners and gym-goers to competitive strength athletes and everyone in between. With more than 15 great-tasting flavor options, satisfying texture, and easy mixing with only a glass and spoon, you’ll always look forward to getting the protein you want in your active, performance-driven lifestyle. It’s everything you’ve come to expect from OPTIMUM NUTRITION®: The World’s #1 Sports Nutrition Brand⁴.

USD 2.99

GOLD STANDARD 100% WHEY™

The World’s #1 Whey Protein Powder⁴. GOLD STANDARD 100% WHEY™ Protein powder supports muscle and post-workout recovery with 24g of quality protein and 5.5g of naturally occurring BCAAs per serving¹. It’s crafted to be a complete, fast-digesting protein with whey protein isolate as the primary source – a filtered form of whey that can support protein goals for people at every level of fitness – from daily runners and gym-goers to competitive strength athletes and everyone in between. With more than 15 great-tasting flavor options, satisfying texture, and easy mixing with only a glass and spoon, you’ll always look forward to getting the protein you want in your active, performance-driven lifestyle. It’s everything you’ve come to expect from OPTIMUM NUTRITION®: The World’s #1 Sports Nutrition Brand⁴. Benefits [, 24g of protein per serving to help build and maintain muscle¹, 5.5g of naturally occurring BCAAs per serving¹, Gluten free, Banned Substance Tested, Easy mixing with only a glass and spoon, 15+ great-tasting flavors]

USD 42.99

Gold Standard 100% Isolate Whey Protein powder

What is Whey Isolate? Unlike regular whey protein, whey isolate goes through an extra filtration process to remove most of the fat and lactose, making it a purer and more easily digestible dairy-based protein source. Gold Standard 100% Isolate is an ultra-pure, fast-absorbing whey protein isolate designed to fuel muscle growth with minimal fat, sugar, and carbs. Performance Benefits: Each serving delivers 25 grams of pure whey protein isolate, supporting muscle growth and maintenance. Contains minimal amounts of sugar (0.3 grams or less) and fat (0.4 grams or less) per serving. 5.5 grams of naturally occurring branched-chain amino acids (BCAAs) and 4.3 grams of glutamine and glutamic acid per serving, aiding in muscle repair. 83% pure protein content per serving due to advanced filtration processes. The hydrolyzed whey protein isolate is designed for quick digestion and absorption, facilitating efficient muscle repair post-exercise. When to Use This Product: Post-Workout: Rapid absorption helps jumpstart muscle repair and growth. Between Meals: Maintain muscle protein synthesis and stay on track with clean nutrition. Daily Nutrition: A high-quality protein source to support a lean, strong physique. Why Choose This Product? Made with the highest quality whey protein isolates, this delicious, easy-to-mix formula delivers ultra-pure protein with superior absorption. Perfect for athletes and fitness enthusiasts who demand the best for their performance. *Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203*Protein contributes to growth and maintenance of muscle mass with regular weights resistance training. Benefits [Ultra- filtered for exceptional purity., 25g of Pure Whey Protein Isolate per serving., Low sugar with 0.3 grams or less, Low fat with 0.4 grams or less , 83% of pure protein per serving, 5.5 grams of naturally occurring BCAAs , 4.3g of naturally occurring Glutamine and Glutamic ] Description Carbohydrate and protein powder with sweetener.

GBP 50.00

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186

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Active Optimum Nutrition codes

20% off

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50% off

3559 uses

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worked about 1 month ago

50% Off Storewide at Optimum Nutrition

20% off

134 uses

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worked 4 months ago

20% Off Storewide at Optimum Nutrition

20% off

1105 uses

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worked about 1 month ago

20% Off Storewide at Optimum Nutrition

50% off

2797 uses

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worked 1 day ago

50% Off Storewide at Optimum Nutrition

More Optimum Nutrition Products

Optimum Nutrition Plus Shaker - 600ml

What is the Optimum Nutrition Shaker? The Optimum Nutrition Shaker is a 600ml, high-quality shaker bottle, designed for smooth, effortless mixing of your favorite supplements, from Gold Standard Whey to Amino Energy. Benefits: 600ml capacity – Perfect for protein shakes, BCAAs, and pre-workouts. Stainless steel mixing ball – Ensures lump-free, smooth blending. Leak-proof, screw-top lid – Secure and mess-free on the go. BPA & DEHP free – Made with high-quality, safe materials. When to Use This Product: Post-Workout – Mix and enjoy your protein shake. Pre-Workout – Blend your Amino Energy or pre-workout formula. On-the-Go – Stay fueled and hydrated anytime, anywhere. Why Choose This Product? With a sleek Jet Black design, Optimum Nutrition branding, and a secure, easy-to-use flip-top cap, this shaker is the ultimate tool for smooth, hassle-free mixing—wherever your fitness journey takes you.

GBP 5.99

Creatine Powder - Elite Series

Increase your performance during training Creatine is proven to increase performance during high intensity training. From the World's No. 1 Sports Nutrition brand, each serving supplies a full 3.4 g of Creatine Monohydrate to increase muscle power in successive bursts of short-term, high intensity, repeated exercise*. Optimum Nutrition MICRONISED CREATINE POWDER always mixes easily and unlike other Creatine powders, there is no gritty taste or texture. [Increased performance during high intensity training, 3.4 g of pure Creatine Monohydrate to increase muscle power, Mixes easily with no gritty taste, Informed Sport certified]

GBP 37.49

GOLD STANDARD 100% WHEY™

USD 84.99

2x Serious Mass (12lbs)

Serious Mass Serious Mass is the ultimate muscle building and weight gain formula. With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to support your weight gains goals.¹ Benefits [High-Calorie Formula Supports Muscle Building³ and Weight Gain Goals¹, 1,250 Calories per Serving to Help Boost Calorie Intake¹, 50 Grams of Protein per Serving to Help Build and Maintain Muscle¹ ³, 252-254 Grams of Carbohydrates per Serving to Help Fuel Workouts¹, 3 Grams of Creatine Monohydrate per Serving, 25 Vitamins & Essential Minerals]

USD 141.49

20% off

1076 uses

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worked 4 months ago

20% Off Storewide at Optimum Nutrition

20% off

137 uses

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worked 3 months ago

節省高達 20%！快來 optimumnutrition.com 選購

25% off

603 uses

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worked 4 months ago

25% OFF some orders

20% off

252 uses

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worked 3 months ago

搶先購！立享最高20%折扣

Sustainability Score

62%

While Optimum Nutrition has made some progress in sustainable packaging initiatives and responsible sourcing, their transparency regarding environmental practices and supply chain management needs improvement. Their parent company Glanbia has better documented sustainability commitments, but ON-specific initiatives are limited. Animal welfare standards meet basic requirements but aren't industry-leading. Their manufacturing facilities have achieved some energy efficiency improvements, though comprehensive environmental impact data isn't publicly available.

About Optimum Nutrition

4.0 (3)

FAQs

: The biggest sales usually occur during Black Friday/Cyber Monday, Memorial Day, Fourth of July, and Labor Day. They also frequently offer special promotions during fitness expos and major sporting events.
: Sign up for their newsletter to receive exclusive offers, follow their social media for flash sales, and consider buying in bulk during major holiday sales. They also offer student discounts and military discounts year-round.
: November is typically the best month due to Black Friday and Cyber Monday deals, with discounts often reaching 30-40% off. January also sees good deals during New Year fitness promotions.
: Yes, they offer a subscription service with 10% off regular prices, plus free shipping on recurring orders. You can modify or cancel your subscription at any time.
: In the past month, Optimum Nutrition has launched 5 new promo coupons for shopper discounts. This indicates that Optimum Nutrition provides regular opportunities for customers to save money on their purchases.
: On average, Optimum Nutrition provides 2.5 discount coupons each month. Based on historical data, the average time between Optimum Nutrition coupon releases every 12 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Optimum Nutrition website regularly, subscribing to email newsletters, and following them on social media.
: Optimum Nutrition is offering 12 working store-wide codes, however they are also offering 174 additional discount codes with a best discount of 20% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Optimum Nutrition. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Optimum Nutrition discount codes.

Curated by

Aleksa P.

Deal Curator

Last updated October 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

Latest Optimum Nutrition coupon activity

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From the blog

2025-04-29

Optimum Nutrition Promo Codes and Coupons October 2025