Optimum Nutrition Gold Standard 100% Whey Isolate
Optimum Nutrition Gold Standard 100% Whey Isolate is designed for athletes who demand the highest level of protein purity. Built around hydrolysed and ultra-filtered whey protein isolate, this premium formula delivers fast digestion, clean macros and exceptional mixability to support lean muscle growth and recovery.
Each serve provides 25g of high-quality whey protein isolate that has undergone advanced filtration to remove excess fat, cholesterol and sugars. A portion of the isolate is hydrolysed—broken into smaller amino acid chains—allowing for quicker absorption and easier digestion.
Ultra-Pure Protein for Lean Performance
Gold Standard 100% Whey Isolate contains no more than 1g of carbohydrates and less than 1g of fat per serve, making it ideal for cutting phases, calorie-controlled diets or anyone looking to maximise protein intake without unnecessary extras.
With over 80% pure protein per serve and 5.5g of naturally occurring BCAAs, this fast-digesting formula helps support muscle repair, strength development and post-workout recovery—without weighing you down.
Why Choose Gold Standard 100% Whey Isolate
- 25g Hydrolysed & Ultra-Filtered Whey Isolate per serve
- At least 80% pure protein for lean muscle support
- Low-fat & low-carb profile (≤1g carbs, <1g fat)
- 5.5g naturally occurring BCAAs per serve
- Fast digestion for rapid amino acid delivery
- Gluten free
- Banned-substance tested (Informed Choice certified)
Clean Taste, Easy Mixing
Gold Standard 100% Whey Isolate mixes smoothly in cold water or milk and delivers a clean, premium taste across a range of popular flavours including Chocolate Bliss, Rich Vanilla, Strawberry Cream, Caramel Ice Cream and Chocolate Mint Brownie.
How to Use Gold Standard 100% Whey Isolate
Mix one scoop with 200–300ml of cold water, milk or your preferred beverage. Shake or blend until fully dissolved.
Consume 30–60 minutes post-workout for optimal recovery, or use anytime throughout the day to help meet daily protein requirements as part of a balanced diet.
Orders placed before 1 pm (Mon–Fri) are packed and shipped the same day. Orders placed after 1pm are shipped the next business day.
Delivery is within New Zealand only via NZ Post, NZ Couriers or Aramex. North Island delivery typically takes 1-2 business days, South Island delivery takes 2-3 business days. Please allow extra time for rural addresses or during busy periods.
Free shipping on orders over $100. Orders under $100 start from $8, calculated at checkout based on weight and delivery address.
Tracking details are emailed upon dispatch. Customers can follow delivery progress and should contact the courier directly for delays.
Inspect goods upon arrival and report any courier damage immediately.
Returns & Refunds
Contact ASN Online within 14 days of receiving your order to request a return. Proof of purchase is required, and items must be unused and in their original condition.
Clearance items, sale items, gift cards, free gifts, short-expiry, and hardened products are not eligible for return.
Return shipping costs are the responsibility of the customer and are non-refundable. Original shipping charges are deducted from any refund.
Faulty items must be reported within 14 days. If confirmed faulty, return shipping costs will be refunded; otherwise, the item will be sent back to the customer.
Unopened products may be returned within 14 days with prior approval. Returns are subject to inspection, and a 15% restocking fee may apply.
Orders can be cancelled any time before they are shipped for a full refund.
If a parcel is undeliverable due to an incorrect address, extra charges may apply to resend.
All rights under the NZ Consumer Guarantees Act 1993 apply.