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IsoWhey 5lb | 100% Pure Whey Protein Isolate

100% Pure Whey Protein Isolate
Regular price$149.99
Tax included.

  • Premium, New Zealand made

    Sourced from GMO-free, grass-fed and pasture raised New Zealand dairy

  • Perfect for gains, maintenance and recovery
    Meet functional fitness, bodybuilding and lifestyle protein requirements

  • Low calories
    High protein, low fat & low-carbohydrate formula, 108 calories or less per serving

  • Diet friendly

    Perfect as part of any high protein or keto diet

  • Gluten Free


25g protein per serving
7g bcaa's per serving
Pure NZ whey Protein Isolate.

No thickeners or fillers. No added sugar.

Blend with water or your favourite milk in a Nutratech shaker.

Use before, during, or after your workout for:
• Muscle Gain
• As a Meal Replacement
• Increased Protein

Order before 12pm and have your order shipped the same day!*
Please review our shipping policies for more information.

  • Free (non-rural) NZ Shipping!

Customer Reviews

Based on 41 reviews
IsoWhey 5lb | 100% Pure Whey Protein Isolate Choc Shake

Mixes incredibly well, tastes great, very low calorie and high protein - perfect. All their proteins are amazing, ISO, whey and the blend. New Custard flavour is a really yum, would be great if it were available for the whey/casein blend and a loyalty/points earning system too.

Wayne McDade

Amazing service!!! Fast and prompt, love the product 🙌🏾highly recommend.


Very good , taste is good, easy to mix and I had no issues

Neil Barker
Superb product

Superb product with excellent protein content and super low calorie count. The flavour is much more subtle that the standard whey and actually takes like a milk shake.

Ryan M

Mixes well with water and milk


Dissolves very easily. Not as sweet as some

Richard Mills
Great taste

Live this flavour, tastes great in whatever I put it with :)

Nathan Howell

Great just great

Lance Morey
great product

good service , great taste value for money

Altmaar Visser
This is the good stuff.

I thought other Nutratech Protein types were good, but for me, the Protein Isolate takes everything up to the next level, and with their discounting, its completely priced as well. Awesome product guys !

What's inside?

The purest form of protein available. Each serving packs 25 grams of whey protein isolate along with 7 grams of BCAAs.

Let's break it down

Looking for a high-quality source of whey protein isolates that provides what your body needs, without unnecessary additives or calories? There can only be one product for you: Nutratech Isowhey.
With virtually zero carbohydrates or fats per serving, Isowhey’s no-BS macro nutrient profile is designed to help you build lean muscle, promote post-workout recovery, and satisfy your protein needs any time of the day.
Forget worrying that you're busting your macros. With Isowhey there’s only one thing you’ll be busting: your fitness goals.

Despite its low-sugar content, Isowhey is exceptionally tasty and extremely mixable. There’s no need for extreme shaking; you can just mix it into water with a spoon. The result is smooth, creamy, and delicious. Better still, Isowhey is free from fillers, thickeners and artificial coloring.
This way, you know you're fueling your body with all the right stuff, so you can perform at your peak.

The Highlights

✔ Great tasting gluten free flavors
✔ Mixes easily with a spoon
✔ Virtually free of carbs and fats
✔ Thickener & filler free
✔ Extra low calorie (108 calories or less per serving)


25g protein per serving
7g bcaa's per serving
Pure NZ whey Protein Isolate.

No thickeners or fillers. No added sugar.


Yes! All our current flavours are gluten free.

When on a calorie restricted diet sufficient protein is of high importance. Various research suggests that whey protein and the high levels of BCAA as found in IsoWhey can add in additional weight loss and feelings of satiety.

Nutritional Information

New Zealand cattle flourish, they spend up to 90% of their days roaming our lush green pastures as nature intended.
We have strict laws regarding artificial growth hormones, antibiotics, pesticides and herbicides.
Our unique environment together with our cold filtered extraction process and zero use of soy lecithin truly sets Nutratech's products apart from the rest.

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Every batch large or small is ingredient verified, tested and tracked to ensure every product adheres our our stringent quality standards.


All dairy protein powders are sourced locally which means they are fresh and didn't spend weeks in the brutal sun stacked in a shipping container from overseas. We blend on a monthly basis , ensuring stock is as fresh as it gets.


Proudly made in clean and green Aotearoa (Maori for New Zealand).  Nutratech Ltd is 100% New Zealand owned and operated.