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  • The World's Best-Selling Whey Protein Powder
  • 24 Grams of Protein per Serving to promote muscle strength and repair
  • 5.5 Grams of Naturally Occurring BCAAs per Serving to Support Endurance and Recovery
  • Represents the “Gold Standard” for protein quality

Product Overview


Each serving of the world’s best-selling whey protein powder provides 24 grams of high-quality whey protein primarily from Whey Protein Isolate, which has had excess carbohydrates, fat, and lactose ‘isolated’ out using sophisticated filtering technologies. The powder is also instantized for easy mixing using just a glass and spoon. Optimum Nutrition has been leading the industry for over 30 years. With over 90,000 quality checks performed annually,we reject truckloads of inferior raw materials every year, it’s this relentless commitment to quality that makes Gold Standard 100% Whey the most awarded, best-selling protein powder on the planet.




  • The World's Best-Selling Whey Protein Powder

  • 24 Grams of Protein per Serving to promote muscle strength and repair
  • Whey Protein Isolate (WPI) main ingredient
  • 5.5 Grams of Naturally Occurring BCAAs per Serving to Support Endurance and Recovery
  • Gluten Free
  • Banned Substance Tested
  • Represents the “Gold Standard” for protein quality
  • Most awarded, best-selling protein powder in the world

Suggested Use

Mix about one scoop of the powder into 180-240 ml of cold water, milk or other beverage. Stir, shake or blend until dissolved. For best results, mix up your shake 30 to 60 minutes after your workout or use as an anytime snack in your balanced diet.

For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Customer Reviews

Overall Rating (4.8)
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Always satisfy

Review by Yutthapong on Oct. 25, 2021
This protein is always my go-to product for protein. Good taste and easy to drink.


Review by Sidney Rodriguez on Oct. 22, 2021
This is my go to protein powder. Really glad they offer the 10 lb because I needed it.


Review by Js on Oct. 20, 2021


Review by Noel on Oct. 19, 2021
I've tried a few protein powders but this one is my favorite choice.

Called Gold Standard for a reason

Review by Wes on Oct. 18, 2021
Best overall whey I've used. Best price, flavor, and nutritional facts.

Excellent protein powder.

Review by Patricia H. on Oct. 18, 2021
Great protein powder. My husband and I order the unflavored version because it's so versatile for creating different flavors of smoothies.

Great product

Review by Anonymous on Oct. 17, 2021
It’s a really good product and gets the job done. So far I’ve gone through three flavors, extreme milk chocolate, dark chocolate, and ice cream vanilla. Extreme milk is my favorite. It’s a great protein supplement!

Best tasting protein

Review by Adrian shiu Narayan on Oct. 17, 2021
Great tasting, mixes well, quick delivery

Simply the best

Review by Jake on Oct. 16, 2021
I'm pretty much a beginner when it comes to lifting weights and bodybuilding, but have seen great results with the support of ON's whey protein. The unflavoured option is perfect, no additives/flavours but it tastes fine, like watered down milk.

Best on the market

Review by Alejandro Perales on Oct. 14, 2021
Optimum Nutrition Gold Standard 100% Whey Protein is the best protein powder on the market today compared to every other protein powder on the market.To start off with,there is a large variety of flavors to choose from.On the optimum nutrition website it states that there are more than 20 flavors you can choose from.Optimum protein is sure to have a flavor that is to your liking with 20 plus options of flavors such as chocolate and vanilla as well as having naturally flavored options they are sure you can find one that fits your taste and achieve your fitness goals.Another reason to buy this product is that it Mixes well,with a very smooth finish.Optimum Protein states that the protein is instantized for easy mixing using just a glass and spoon.With the easy mixing the protein powder rarely clumps making it easy for a smooth flavorful drink after or before your workout.Critics may say that this powder is not the best on the market ,and they see no results but with a strict workout regimen you will see results.