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Combine & Save: Gold Standard 100% Whey & NEW Creatine [+]. 15% off the lowest priced product when purchased in a Combi Deal.

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  2. Protein
Unlock more in your routine
Which protein is right for you?

Put the World's Best-Selling Whey Protein Powder to the Test!4

Supports Muscle Recovery

The Worlds #1 Whey Protein Powder*

24g of Premium Whey Protein

Gold Standard optimum nutrition whey protein
Gold Standard Plant Protein Nutrition

Supports Muscle Health

Great-tasting vegan formula

24g plant protein per serving

SHOP NOW

Platinum Protein for Strength & Recovery

Why do we need protein?

Muscle arm

Supports Muscle Recovery and Health

Nutrient icon

An Important Macronutrient

Snack icon

Good Snack in Between Meals

Top Protein Myths BUSTED!

Myth icon

Whey protein will make me bulky.

Truth checkmark icon

We believe you get out what you put in – which is why our award winning manufacturing facilities only use the highest quality ingredients and strictest quality control when making our products. Your genetics and your strength training program dictate how much muscle you build. Protein* only supports this training.

Myth icon

Whey protein is bad for my health.

Truth checkmark icon

Protein is an important macronutrient that supports muscle recovery and overall health. Whey protein is a food and a common by-product of cheese making. Those with a dairy allergy should consult their primary healthcare provider before consuming.

Myth icon

Whey protein has to be taken post workout.

Truth checkmark icon

Whey protein can be taken anytime throughout the day to help you hit your daily protein requirements, but it may be a good habit to take your shake after training to support muscle recovery.*

Which protein is right for me?

ON Vegan Protein

Vegan Protein

ON Casein Protein

Overnight Muscle Recovery

Optimum Nutrition Whey Protein

Post-Workout Recovery

ON Serious Mass

Muscle & Weight Gain Goals3

ON Ready to drink shake

Anytime, Anywhere for your busy lifestyle

How much protein do I need?
Find out in under 60 seconds with our protein calculator

How Can I Add Protein to my Day?

Protein Hot Chocolate
Chocolate Protein Brownies
Hydrowhey Protein Blueberry Pancakes
Protein is for Everyone
Support muscle growth and recovery with convenient, high-quality protein powders and shakes.

Customer Favorites

GOLD STANDARD® Ready To Drink Protein Shake Shakes & Powders
GOLD STANDARD® Ready To Drink Protein Shake
$23.99
GOLD STANDARD 100% WHEY™ Shakes & Powders
GOLD STANDARD 100% WHEY™
From $16.99
GOLD STANDARD® 100% Plant Shakes & Powders
GOLD STANDARD® 100% Plant
From $23.99
GOLD STANDARD® 100% Isolate Shakes & Powders
GOLD STANDARD® 100% Isolate
$72.99 $70.99
Serious Mass Weight Gainers
Serious Mass
From $30.99
GOLD STANDARD® Ready To Drink Protein Shake Shakes & Powders
GOLD STANDARD® Ready To Drink Protein Shake
$23.99
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© 2025 Optimum Nutrition

1. These statements have not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.
2. No significant difference has been shown between RBST treated and non-RBST treated cows.
3. When used over time in combination with regular resistance exercise.
4. Source Euromonitor International Limited; Consumer Health 2025 Edition, Sports Nutrition category, %retail value shares, 2024 data.
5. Not a low calorie food.
6. Naturally occurring amino acids.
7. See nutrition information for saturated fat, cholesterol and sodium content.

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