Description
Experience the pinnacle of protein purity with Optimum Nutrition Gold Standard 100% Isolate, engineered specifically for dedicated athletes and lifters who demand maximum results without unnecessary calories. Each serving delivers 25 grams of ultra-filtered, rapidly absorbing whey protein isolate with no more than 1 gram of carbohydrates and less than 1 gram of fat. By stripping away excess lipids, cholesterol, and sugars, ON Gold Standard 100% Isolate provides an ultra-clean fuel source designed to accelerate lean muscle synthesis, optimize post-workout recovery, and easily fit into strict dietary macro targets.
Key Benefits & Features
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25g Pure Whey Isolate per Serve: Delivers a high-yield dose of premium protein to fuel lean muscle growth and accelerate tissue repair.
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Hydrolysed & Ultra-Filtered Blend: Partially broken down into smaller amino acid chains for rapid absorption and easy digestion.
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5.5g Naturally Occurring BCAAs: Packed with essential branched-chain amino acids to kickstart muscle protein synthesis and reduce post-exercise soreness.
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Ultra-Low Fat & Carbohydrate Profile: Contains no more than 1g of carbs and less than 1g of fat per scoop, perfect for lean conditioning and body recomposition.
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Informed-Choice Certified: Rigorously tested for banned substances, giving competitive Kiwi athletes total confidence in every batch.
How It Works
Optimum Nutrition Gold Standard 100% Isolate is crafted starting with high-grade whey protein that undergoes advanced cross-flow microfiltration to isolate pure protein away from fat, lactose, and impurities. A portion of this isolated protein is then hydrolysed—enzymatically broken down into smaller peptide chains. This ultra-refined structure allows your digestive system to process and transport essential amino acids into starved muscle fibres at an accelerated rate compared to standard whey concentrates.
Because the majority of lactose and fat is removed during filtering, this premium isolate is incredibly gentle on the stomach and eliminates the heavy, bloated feeling often associated with lower-grade dairy proteins. Additionally, with 4.3g of naturally occurring glutamine and glutamic acid alongside 11.4g of essential amino acids (EAAs), it supplies the complete building blocks required to preserve lean tissue during intense training phases.
Recommended Use
Mix 1 rounded scoop (approx. 30g) with 200–250ml of cold water, low-fat milk, or your favourite beverage in a shaker cup. Shake thoroughly for 30 seconds until completely dissolved.
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Post-Workout: Consume within 30–60 minutes following intense physical training to accelerate muscle recovery and repair.
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Between Meals: Take 1 serving between main meals to maintain a consistent flow of amino acids and support your daily protein targets.
Optimum Nutrition Gold Standard 100% Isolate Frequently Asked Questions
What is the difference between Gold Standard 100% Whey and Gold Standard 100% Isolate?
While Gold Standard 100% Whey uses a blend of Whey Protein Concentrate (WPC), Whey Protein Isolate (WPI), and Whey Peptides, Gold Standard 100% Isolate uses strictly WPI and Hydrolysed WPI. This results in a higher protein percentage per serve with lower fat, carbohydrate, and lactose levels.
Is Optimum Nutrition Gold Standard 100% Isolate suitable for people with lactose sensitivity?
Because whey protein isolate undergoes extensive filtration to strip out nearly all fats and sugars, the lactose content is extremely minimal (less than 1g of sugar per serve). Many individuals who experience mild stomach discomfort from standard whey concentrates find this isolate far easier to digest.
How many servings are in the different container sizes?
Depending on your training frequency and budget, Sprint Fit stocks three distinct sizes:
720g (1.58lb) Tub: Provides 24 full servings (perfect for trying out premium flavors).
1.36kg (3lb) Tub: Provides 44 full servings.
2.28kg (5.02lb) Tub: Provides a massive 76 full servings (offering the best cost-per-serve value for daily trainers).
Is this protein powder safe for drug-tested, competitive athletes?
Absolutely. Optimum Nutrition Gold Standard 100% Isolate is proudly Informed-Choice certified. Every single production batch is independently screened and tested for banned substances, ensuring elite competitive athletes across NZ can trust its safety and complete label accuracy.
Can I mix Gold Standard Isolate without a shaker bottle?
Yes, the powder is fully instantized. This means it dissolves effortlessly into cold water, milk, or a smoothie base with a simple stir of a spoon, leaving absolutely zero gritty residue, lumps, or chalky texture behind.
What is the estimated delivery time within New Zealand?
Sprint Fit offers rapid nationwide delivery. Orders completed before 3:45 pm, Monday through Friday, qualify for same-day dispatch from our warehouse. Most Auckland and North Island addresses receive their protein overnight, while South Island shipments generally arrive within 1 to 2 business days.
Facts
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.
Shipping
All orders $60 and over receive Free* Shipping Nationwide
Final pick up each day is at 3.45pm Monday to Friday.
Estimated Delivery Times*:
Auckland and North Island – Overnight
*During sale periods, please allow an additional 1–2 business days for dispatch due to high order volumes.
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.
Often Bought Together
Optimum Nutrition Gold Standard 100% Isolate Reviews
Chocolate Bliss
Tastes very bland, almost no flavor. I don't like the brownish color of the chocolate. Leaves my stomach feeling bloated. Would recommend others to buy the vanilla instead.Rich Vanilla
Amazing product, best quality and disolves perfectly. flavor is very good.Cookies & Cream
Highly recommended. Taste is good and also one of the best brands out there.Chocolate Bliss
Love it. My first ever protein shake. It’s been working well for me.Chocolate Bliss
Great tasting product. Happy with the value for money.Chocolate Bliss
This flavour is absolutely delicious!! The 100% isolate is perfect for my lactose sensitive gut and it tastes just like a chocolate milkshake. Fantastic way to get my protein in and this will be my go to from now on!Chocolate Bliss
Sprint Fit is the only store i deal with, easy process with quick delivery. also imo, Optimum Nutrition Gold Standard 100% Isolate is second to none. trust the process, trust Optimum Nutrition Gold Standard 100% Isolate!Chocolate Bliss
I had a friend recommend my this product as most protein powders I’ve tried are usually chalky, lumpy and just don’t taste nice. After trying this I found it’s very smooth with milk or water and actually tastes like a milkshake. Will definitely be buying this again and also happy with the price ranges too