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Optimum Nutrition Gold Standard 100% Isolate

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Product Description


To create Optimum Nutrition Gold Standard 100% Isolate, Optimum Nutrition started by selecting only the highest quality whey protein which undergoes a series of sophisticated filtration processes to ‘isolate’ out excess fat, cholesterol and sugar. A portion of this Whey Protein Isolate is then hydrolyzed – broken down into smaller chains of amino acids – for easier digestion. The final product is a fast digesting complete protein containing no more than 1 gram of carbohydrates, less than 1 gram of fat and more than 80% pure protein per serving. They put in the hard work to assure super quality, so you can focus on achieving ambitious performance goals.

Optimum Nutrition Gold Standard 100% Isolate features:

  • Hydrolyzed & ultra-filtered Whey Protein Isolate
  • 1 Gram of carbs per serving
  • At Least 80% Protein per serving
  • Delicious taste mix with cold water
  • 5.5 Grams of naturally occurring BCAAs
  • 4.3 Grams of naturally occurring Glutamine & Glutamic Acid
  • 11.4 Grams of naturally occurring Essential Amino Acids
  • Gluten free


Container Size: 720G (1.58LB)
Serving Size:  1 Scoop 30G
Servings Per Container: 24

Container Size: 1.36 KG (3LB)
Serving Size:  1 Scoop 30G
Servings Per Container: 44

Container Size: 2.28KG (5.02LB)
Serving Size:  1 Scoop 30G
Servings Per Container: 76

Please Note: Nutritional Information is to be used as a guide only, actual values may differ between flavours and sizes and when formulations are modified or updated by the manufacturer. 
Contact us if you have any questions regarding this products ingredients.


All orders $50 and over receive Free* Shipping Nationwide 

Estimated Delivery Times*:

Auckland and North Island – Overnight

However many Auckland orders will be delivered the same day depending on what time the order is placed)

South Island – Overnight (For larger parcels allow 2 business days)

Same Day/Evening Express Shipping upgrade available at checkout for select suburbs*

Click here to view the full Shipping Details and Returns Policy.


Optimum Nutrition Gold Standard 100% Isolate Reviews

4.85/5 based on 128 reviews
5 star
4 star
3 star
2 star
1 star

Overall Rating

9.7 /10

128 Ratings

Average Flavour Rating

9.6 /10

5 Flavours

Top Rated Flavour

10 /10

Chocolate Bliss


10/10 Chocolate Bliss

Best flavored protein you can buy, hands down and mixes very easily.

10/10 Rich Vanilla

I bought the vanilla wey as a recommendation and I was surprise. Taste really good. I use do make my smoothie in the mornings.

10/10 Chocolate Bliss

Good taste

10/10 Chocolate Bliss

Recently swapped my pp to Optimum Nutrition. Love the flavour! Won't go back to what I was previously using. Great value for money and always fast shipping with Sprint Fit

10/10 Chocolate Bliss

This protein is amazing, it’s the only one (and we have tried many!!) that meets my husbands nutritional needs but doesn’t give him awful gas!! Such a win!

10/10 Chocolate Bliss

Great stuff, used for months now. Go for the chocolate though, easy to mix and good taste even with water.

10/10 Chocolate Bliss

Very good, I like that it’s low in sugar and fat. I put it into my frozen banana, almond milk and Greek yogurt smoothie. It gives me energy and keeps me full all morning. The flavour is great too, it tastes better than other protein powders out there.

10/10 Chocolate Bliss

This is my GO-TO protein. I know it's more expensive but the flavour is great (not too sweet), the ingredients are great and the texture is good (not like with other protein powders).

10/10 Chocolate Bliss

First time purchasing this brand protein powder based on reviews I had read and it did not dissapoint! Best tasting protein powder I have tried. I mix with water and is very smooth, dissolves well without any lumps and tastes absolutely delicious (chocolate bliss)

9/10 Rich Vanilla

Well-made product, easy to dissolve and doesn't taste like cardboard...

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