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Bulk Nutrients' Whey Protein Isolate

Whey Protein Isolate

1092 product reviews
Great prices when buying in Bulk
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Product Description

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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) and essential amino acids (EAAs) 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

ChocolatePer ServePer 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 ProfilePer 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 1092 | Next

  • Best WPI

    Posted by on Aug 22, 2017

    This WPI is excellent. High protein, great macro composition. Mixes perfectly in a shaker, no lumps. Favourite flavour is choc honeycomb, choc is good too, strawberry is pretty good for a bit of a change.

  • Best WPI ever

    Posted by on Aug 21, 2017

    Superior in quality, taste, mixability and price. Will not find better WPI

  • WPI

    Posted by on Aug 18, 2017

    I love bulk nutrients WPI. It has high amounts of protein per serve, in comparison to other brands. The flavours are fantastic, and mix easily. The protein in smooth and tastes great

  • Tastes great

    Posted by on Aug 18, 2017

    Absolutely love this product so delicious and not overly sweet

  • Good, but sweet

    Posted by on Aug 16, 2017

    I normally get choc (or choc honeycomb) and they taste nice albeit a little bit too sweet. They could definitely use some dialing back on the sweetener to get them where they used to be (particularly the choc).

    The choc always mixes well for me so other than the sweetness, it's all good.

    A minor nitpick is the bag isn't the easiest to use. It's nice and sturdy but it's a pain (and messy) to get the scraps out of.

  • All you need

    Posted by on Aug 15, 2017

    Love this product, it tastes great, it is easily absorbed and it certainly does everything it should and more. I'll continue with this product.

  • Good quality protein

    Posted by on Aug 15, 2017

    The Vanilla flavoured WPI is a good quality protein. It does not clump in a shaker and isn't thick and creamy when you drink it. Great way to supplement in extra protein in your diet and after training sessions.
    However, the Vanilla flavour can be a bit bland and not sweet enough compared to other protein powders I have used. But I am taking it based on it's function, not taste.

  • Top protein top taste

    Posted by on Aug 12, 2017

    Best protein shake ever. Dissolves completely, tastes fantastic and the price is very good.

  • Great flavours

    Posted by on Aug 11, 2017

    Always love this protein. Tastes amazing, even with water. Highly recommend

  • 100% WPI Coffee

    Posted by on Aug 11, 2017

    Just received my first Bulk Nutrients order (3kgs of 100% WPI). Trying the coffee flavour while I type this. It's a lot sweeter than my usual WPI but for the money and for the service (I only placed the order late yesterday afternoon) I will definitely be ordering from these guys again. Very happy new customer :o)

Showing reviews 1-10 of 1092 | Next

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