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Whey Protein Isolate - 100% WPI

Whey Protein Isolate

881 product reviews
Great prices when buying in Bulk
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Product Description

Whey Protein Isolate

Our Whey Protein Isolate (WPI) is a low temperature cross and ultra filtered whey protein which remains completely undenatured. We believe it is one of the purest Whey Protein Isolates on the market, with high levels of protein and lower levels of fats, carbohydrates and sodium. Our Whey Protein Isolate is naturally rich in amino acids, particularly branched chain amino acids (BCAAs), essential amino acids (EAAs) and glutamine which ensures optimum muscle growth.

We use the strongest sweetener available and only the finest flavouring systems in our flavoured whey protein isolate, which ensures an exceptionally pure finished product. Our flavouring systems are mixed between 1% and 4% which guarantees product purity.

Our Whey Protein Isolate is suitable for those who want the fastest absorbing and most bio available protein source. From endurance to strength athletes users will find our Whey Protein Isolate (WPI) helps recovery, strength and muscle levels as well as strengthening the immune system.


Over the last 6 months supply for our NZ WPI has been increasingly unsteady.

Providing a consistent product is very important to us so we are now transitioning to cold filtered, grass fed WPIs from Ireland and the US.  

These proteins have undergone lengthy testing and as a positive the protein content is fractionally higher than our previously used NZ WPI, with equally low fat and carbohydrate levels.

Most importantly the whey used from both suppliers is cross filtered WPI from grass fed cows, identical to the process used with our previous NZ WPI.

You may notice some very minor changes in taste and texture but you can rest assured our WPI remains extremely pure, and of the highest quality as our customers expect.

Please click the flavour below to view our Whey Protein Isolate nutritional panels.

Servings Per Package: 1kg - 33
Serving Size: 30g

Chocolate Per Serve Per 100g
Energy (kj) 472 1572
Protein (g) 26.3 87.7
Carbohydrates (g) 0.5 1.7
(Sugars) (g) 0.3 1.5
Fats (g) 0.4 1.4
(Saturated) (g) 0.3 1.0
Sodium (mg) 61.5 205.0
Typical Amino Acid Profile Per 30g
Alanine 1379
Arginine 726
Aspartic acid 3023
Cysteine 967
Glutamic acid 4257
Glycine 435
Histidine 484
Isoleucine 1524
Leucine 3459
Lysine 2709
Methionine 580
Phenylalanine 919
Proline 1088
Serine 1088
Threonine 1282
Tryptophan 580
Tyrosine 1016
Valine 1354

 

FORMULATED SUPPLEMENTARY SPORTS FOOD. NOT SUITABLE FOR CHILDREN UNDER 15 YEARS OF AGE OR PREGNANT WOMEN. SHOULD ONLY BE USED UNDER MEDICAL OR DIETIC SUPERVISION.  THIS PRODUCT IS NOT A SOLE SOURCE OF NUTRITION AND SHOULD BE CONSUMED IN CONJUNCTION WITH A NUTRITIOUS DIET AND APPROPRIATE PHYSICAL TRAINING OR EXERCISE PROGRAM. 

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Showing reviews 1-10 of 881 | Next

  • Excellent

    Posted by on Feb 26, 2017

    Tastes great and low in sugar and carbs. Delivery was fast and there are lots of flavours to choose from!

  • Hightly recommend

    Posted by on Feb 26, 2017

    My favourite protein! Clean super tasty, no funny after taste.
    My favourite is probably cookies and cream, but they are all good.

  • Coffee Flavour

    Posted by on Feb 24, 2017

    I recently tried the coffee flavour in this product. While I love BN WPI the coffee flavour left me a little disappointed. Not too sure what it may be other than possibly lower grade coffee/flavouring being used in the product. I work in the milk industry so I know that coffee milk can taste quite well balanced. I know production costs is also a factor so single origin bean use is probably not viable either (haha). Again have always loved almost all BN products. This flavour just wasn't my favorite. Thanks

  • Not really the flavour for me!

    Posted by on Feb 23, 2017

    When mixing in water I found the consistency to be very thin (I wasn't expecting this) & the coffee flavour is way too sweet for me. I then tried it in milk & Greek yoghurt which I really enjoy. Can't go past the price.

  • Yummy!

    Posted by on Feb 23, 2017

    Always happy with Bulk Nutrients products but this time I was blown away! The Choc Honeycomb is amazing! Best flavour yet! Thanks guys for always trying new things!

  • Awesome

    Posted by on Feb 23, 2017

    Mixes well in water and milk. Chocolate flavour is drinkable when mixed with just water, unlike every other WPI I've tried.
    Have also had success mixing into plain yogurt and cooked rolled oats.

  • Perfect

    Posted by on Feb 23, 2017

    Besides the obvious point of price, which is FANTASTIC! This is a good quality WPI, it's not overly sweet and it tastes fantastic! I've had all the flavors except for coffee and mint, and all of them are delicious and mix extremely well!

  • Affordable, tasty and effective!

    Posted by on Feb 22, 2017

    After searching high and low for a protein powder that agrees with my stomach and works at fueling me pre and post training, I was pretty stoked at finding Bulk Nutrients. Good for a mid morning snack, post lifting refuel and very very easy on the wallet. Loving the smorgasbord of flavours too! I've tried around 40 different protein powders and have found most difficult to digest but this one actually works. New fav product!!

  • Flavour let down.

    Posted by on Feb 22, 2017

    I order cookies and cream and to be honest the flavour was quite a let down. It tastes like a mint-vanilla.

  • Great taste

    Posted by on Feb 21, 2017

    Highly recommended, a really good taste and even though full of artificial sweeteners, you can't taste it as much :)

Showing reviews 1-10 of 881 | Next

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