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Optimum Nutrition Gold Standard 100% Isolate
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Gold Standard 100% Whey Isolate

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Choc Mint Fudge
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RRP $174.95
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on all orders over $300
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Gold Standard 100% Whey Protein Isolate offers premium whey protein isolate in both partially hydrolyzed and plain format. This protein blend ensures rapid absorption and delivery, with the quality amino acid content and high leucine percentage of whey protein. With five delicious flavours to choose from, ON Gold Standard 100% Whey Isolate may be taken post-workout or any other time of the day when a high-quality protein source is required.


Product Features

  • Ultra Fast Absorption.
  • Partially Hydrolysed.
  • Low Calorie, Low Carb.
  • 100% Whey Protein Isolate.
  • Premium Flavours.



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Optimum Nutrition offer an exceptional range of sports nutrition supplements for a range of people, from elite athletes to weekend workout enthusiasts. With the low calorie content, high protein and low carbohydrate level, this product makes for the perfect convenient snack or meal supplement, supporting lean muscle growth or maintenance and recovery from exercise.


Gold Standard 100% Whey Protein Isolate contains premium quality whey protein isolate powder, the fastest absorbing protein. This only protein that may be more rapidly absorbed than whey protein isolate is hydrolyzed whey isolate, which has been added to this premium protein powder. Rapid absorption ultimately means that the amino acids find their way to the bodies tissues, including the muscles, fast, rather than sitting in the digestive tract.


This makes rapid absorption proteins ideal for recovery from exercise as they will trigger mTOR and being the muscular adaptation process that much faster. The below diagram illustrates exactly what is removed from milk to end up with the final product: whey protein isolate.


gold standard 100% isolate processing flow chart


How Does Whey Protein Support Recovery from Exercise?

Rigorous exercise, like weight lifting, can cause tiny tears in the muscle tissue, commonly known as micro-tears. Intense exercise also creates catabolic conditions in the body. This means, muscle tissue is being broken down.


This muscle damage is important in order for it to want to adapt and change. This is where whey protein comes into the picture, as it provides a rapidly digestible source of essential amino acids, with a high proportion of leucine.

Gold Standard Isolate Mint Flavour

Essential amino acids are needed to stimulate protein synthesis and return the body to an anabolic state after exercise. A high content of leucine allows for greater stimulation of mTOR in muscle tissue as well. This leads to even greater protein synthesis in the presence of the other essential amino acids.


Once in an anabolic state, muscle micro-tears can heal much more rapidly. This is essential to optimum adapatation to exercise.


Gold Standard 100% Whey Protein Isolate Review

We were already fans of whey protein isolates before trying this product, particularly hydrolysed products. Hydrolysed protein sits lighter in the stomach, and this product proved to be no exception to that rule. It went down smooth and did not leave us feeling bloated or overly full. That's the beauty of a partially hydrolysed product; it's partially pre-digested. This speeds up the processes of digestion and absorption, and makes the product feel lighter in the stomach.


The strawberry flavour is amazing, while the chocolate and vanilla were also really good. We tried the product in cold water, though flavoured protein always tends to taste better in full cream milk. So if you can spare the calories, give it a go, or maybe just as a one-off on a cheat day. The fats and complex proteins found in milk will slow the absorption of the protein found in Gold Standard 100% Whey Protein Isolate, so water is always more effective for the rapid absorption effect.


All in all, we were extremely happy with this product. It gave us some much needed post-workout protein and left a nice aftertaste. We rate this product 4.8 out of 5.0.


How to Use ON Gold Standard 100% Whey Isolate

Mix 1 Scoop with 200ml Cold Water and consume. Perfect for use after exercise. Alternatively, take 1/2 hour before exercise to assist anabolism or take between meals to further boost recovery.


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Optimum Nutrition Gold Standard 100% Isolate Nutritional Information

Serving Size: 1 Scoop (31g)(Chocolate Bliss Flavour)

Carbohydrates, Total
Fat, Total
- Cholesterol
Not a significant source of saturated fat, trans fat, dietary fibre, total sugars, added sugars and vitamin D.


INGREDIENTS: Partially Hydrolyzed Whey Protein Isolate, Whey Protein Isolate, Cocoa (Processed with Alkali), Natural and Artificial Flavour, Lecithin, Salt, Sucralose.

CONTAINS: Milk and Soy.