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NZ Whey Protein Isolate - 1kg Jar

Original price $99.95 - Original price $99.95
Original price
$99.95
$99.95 - $99.95
Current price $99.95
Flavour: Vanilla
1

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NZ Whey Protein Isolate - 1kg Refill Bag

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Powerful Protein for Everyday Performance

Want a protein that’s all about maximising your gains? Nothing Naughty Whey Protein Isolate delivers the highest quality protein with minimal carbs, fat, and lactose.

Made from premium New Zealand whey, this gluten-free isolate is designed to help fuel your muscles, support recovery, and help you achieve your fitness goals without any unnecessary additives.

Why You'll Love It:

  • High Protein, Low Carbs & Fat: Each serving packs in 21.2-21.4g of NZ whey protein isolate with almost no carbs, fat, or sugar, making it ideal for anyone focused on building lean muscle and staying on track with their macros.
  • High in BCAAs: Packed with branched-chain amino acids, known for promoting muscle recovery and stimulating protein synthesis.
  • Fast Absorption: Whey protein isolate is quickly absorbed by your body, perfect for post-workout recovery.
  • Gluten Free: Suitable for those with gluten sensitivities. May contain traces of soy.
  • Comes with a compostable scoop inside.

How and When to Enjoy:

  • Post-Workout: Mix one scoop with water or milk to help your muscles recover faster after exercise.
  • Daily Protein Boost: Add it to your smoothies, yoghurt, or cereal for an easy way to increase your protein intake throughout the day.


Proudly made in New Zealand, our Whey Protein Isolate is available in 2 delicious flavours: Vanilla and Chocolate.

Expecting a child? Read our Blog by Dr Shehnaz Hussain: Protein Requirements for Pregnant and Breastfeed Women

  • How To Use

    Shake or blend with water or milk for a quick protein hit, or add into your favourite smoothie, yoghurt or cereal.
  • Ingredients

    Vanilla Ingredients: NZ whey protein isolate, natural vanilla flavour, guar gum, natural sweetener (stevia & monk fruit extract).

    Chocolate Ingredients: NZ whey protein isolate, natural chocolate flavour, guar gum, natural sweetener (stevia & monk fruit extract).

  • Nutritional Information

    Natural Vanilla Nutrition Information: 

    Qty per serving Qty per 100g
    Energy 388kJ (93 Cal) 1550kJ (371 Cal)
    Protein, total 20.1g 80.2g
    - gluten 0.0mg 0.0mg
    Fat, total 0.2g 0.9g
    - saturated 0.1g 0.5g
    Carbohydrate 2.5g 10.g
    - sugars 0.6g 2.3g
    Sodium 32mg 128mg

    Natural Vanilla Amino Acid Profile: 

    Qty per serving Qty per 100g
    Branched Chain Amino Acids (mg)
    Leucine 2543 10170
    Isoleucine 1620 6480
    Valine 1440 5760
    Other Essential Amino Acids (mg)
    Lysine 2250 9000
    Methionine 540 2160
    Phenylalanine 743 2970
    Threonine 1665 6660
    Tryptophan 428 1710
    Non-Essential Amino Acids (mg)
    Histidine 428 1710
    Arginine 540 2160
    Cysteine 653 2610
    Glycine 428 1710
    Glutamic Acid 4275 17100
    Proline 1440 5760
    Tyrosine 765 3060
    Alanine 1260 5040
    Aspartic Acid 2543 10170
    Serine 1148 4590

    Natural Chocolate Nutrition Information: 

    Qty per serving Qty per 100g
    Energy 387kJ (93 Cal) 1550kJ (370 Cal)
    Protein, total 20.2g 80.7g
    - gluten 0.0mg 0.0mg
    Fat, total 0.5g 1.9g
    - saturated 0.3g 1.2g
    Carbohydrate 1.6g 6.4g
    - sugars 0.4g 1.5g
    Sodium 32mg 128mg

    Natural Chocolate Amino Acid Profile:

    Qty per serving Qty per 100g
    Branched Chain Amino Acids (mg)
    Leucine 2543 10170
    Isoleucine 1620 6480
    Valine 1440 5760
    Other Essential Amino Acids (mg)
    Lysine 2250 9000
    Methionine 540 2160
    Phenylalanine 743 2970
    Threonine 1665 6660
    Tryptophan 428 1710
    Non-Essential Amino Acids (mg)
    Histidine 428 1710
    Arginine 540 2160
    Cysteine 653 2610
    Glycine 428 1710
    Glutamic Acid 4275 17100
    Proline 1440 5760
    Tyrosine 765 3060
    Alanine 1260 5040
    Aspartic Acid 2543 10170
    Serine 1148 4590

  • Packaging & Recycling

    Stored in our stylish reusable glass jars perfect for refilling with our protein refills or other pantry goods! Order your Whey Protein Isolate Refills Here! 

  • Servings

    Servings Per Pack: 40. Serving Size 25g (1 scoop)
  • Best protein powder I've found & tasted. Great in every way - taste, texture, no smell
  • This is the only protein powder that sits well in my stomach any time of the day.
  • Super creamy. Mixes well, comes in a paper bag full with product. Super quick to Australia.
  • 5 stars: 304 (87%)
  • 4 stars: 29 (8%)
  • 3 stars: 5 (1%)
  • 2 stars: 7 (2%)
  • 1 star: 6 (2%)
Some of the reviews shown are from related products the merchant grouped with this one.
C
Cecilia Montelongo
Chocolate
Premium quality protein.

The Chocolate flavour is the best I’ve ever tried. It mixes well, creamy texture, perfect for smoothies.
Quick delivery, great packaging.
Next order will be the unflavoured one.
Thanks for your dedication.

K
Kathryn Grace
Low-FODMAP fave! + Bonus to be supporting local

As a sensitive gut health girlie, I have a very strict diet and am keen to avoid all the yucky fillers and sugars that protein powders often have.
This whey isolate powder is gentle on my gut, and the chocolate tastes delicious! No extra flavours or sweeteners required ❤️ PLUS the jar is gorgeous - Very very stoked with this product, and will be back for more!

A
Anonymous
Vanilla
Taste better than any other protein powder ive

Taste better than any other protein powder ive tried

B
Bronny Marshall
Natural
I love Nothing Naughty Natural Whey Protein Isolate

As someone who has lots of food allergies, cannot tolerate artificial sweeteners or ‘so-called natural sweeteners’, this product is high protein, does not make me bloat and tastes nice (it is unflavoured but pleasant). I make it up in shakes with water, ice, a teaspoon of instant coffee (could use a coffee shot) and sometimes 1teaspoon a pure maple syrup (low GI). Sometimes I just have this with water. I use it in my overnight oats and it mixes well with my water and chia. Love this product. I have not found anything else as clean. Thanks Nothing Naughty!

R
Rachael
Chocolate
Best protein powder for sensitive stomach

This protein powder does not irritate my stomach. I have a slight lactose intolerance (i.e. too much dairy and I'm in trouble). This is the only protein powder that sits well in my stomach any time of the day.

c
carol Cole
Whey protein isolate

Vanilla. Sorry guys this made me gag. I could not use it. The taste was bland and my stomach tried hard to reject it. I've changed back to Fava Bean.

Hi Carol, sorry to hear that the Whey Protein Isolate wasn't for you.
I am glad to hear you like our Fava Bean Protein. It is a great one. Feel free to get in touch if would like to send this back to us and we can send you a a Vanilla Lean Bean replacement. Just drop us a line at help@nothingnaughty.kiwi.nz

C
Christine

Great service & product

J
Jan

nice quick delivery. good product.

H
Hannah
Love this !

Absolutely love the jar and how gentle this is on my stomach 🥰🙌⭐️⭐️⭐️⭐️⭐️

B
Brent Gibson
Vanilla

Good Stuff

J
Johanna Devine
Natural
Happy

I can add it to any flavour smoothie because it hasnt got a strong taste or tons of sweetness

N
Naomi Wiretnowati
Vanilla
Great taste

I’m really happy with Nothing Naughty Isolate Whey Protein! It tastes great, and I love the natural sweetness. Delivery is always fast and reliable. I’ll definitely order again! 😊

R
Rose
Vanilla
I take it each morning adding Libby Weavers bioblend

Gets me thru a long milking (dairy farmer) without loading me up early I’m keeping my weight and digestive system working a treat

K
Kendal
Vanilla
It works

I have tried both chocolate and vanilla isolate, and they are both tasty with trim milk. I add nothing naughty creatine in my shake, and it does what I want it to do – keep me full longer to reduce snacking, cravings for sugar, mental fatigue, and it improves my ability to maintain muscle tone.

A
Anja Marais
Vanilla
Best protein powder

Tastes great and mixes well with anything.
Loving it and use it every day.

J
Jan STANTON
Vanilla
What's not to like

I don't need bells and whistles, I just need plain good and this Whey Isolate protein is that. The vanilla flavour is enough for taste appeal. Great after a gym session. I like it.

C
Chelsea
Vanilla
Best protein powder I’ve ever tasted

I am not kidding when I say this is the best protein powder I’ve found & tasted. I have been trying to find the perfect one for so long and thought it didn’t exist, one that doesn’t have an off putting smell or gross after taste or one I’m forced to drink quickly to get it over with. Nothing naughty im so glad my sister recommended me your protein powder!!! It’s great in every way - taste, texture, no smell, easy to blend into a smoothie without changing it! Will be re purchasing!

G
Garrett
Top Notch stuff!

Saw this a few times on Instagram and decided to give it a go. Genuinely the best protein I've tried by a mile. High protein, low cal and super yum. Love that it's grass-fed in NZ too. Won't be using anything else from now on!

F
Fi Bry
Natural
Such amazing Service

I love the jars so i can just add to my jars. Good for the environment & top service

A
Anita
Natural
Whey Protein Isolate NATURAL

If you dont like the smell or taste of Vanilla Protein Isolate, I recommend this NATURAL variety.
There is NO smell and very little taste.
WHEY BETTER!

N
Nick
Chocolate
The best by far!

This is by far the best WPI I have used. The chocolate flavour tastes great and it blends into an amazing almost mousse texture even with just water. Mixes perfectly with the Creatine too.

S
Scott Robinson
Chocolate
Cool jar

Love the packaging. Flavour is good but a little weak so 2 scoops are better than 1

L
Lisa Barr
Vanilla

Love it

L
Linda Seide
Natural
You might like it I don’t

I really can’t deal with the off milk taste and I got the isolated whey no flavor but it translated too much still when I make shakes and baking! I’m going to try and resell it.

What I really liked was the protein drink with peach and passionfruit. Very jummy!

B
Brenda Warren
Chocolate
Whey protein isolate powder

Excellent product highly recommend
We have bought 4 jars to date Thankyou

B
Barnaby

Excellent as always. Thanks team

T
Tim Loversidge
Natural
Whey isolate

I have just switched to this after using the normal whey protein and it is just as good i noticed the scoop was bigger than normal protein i would have thought it would have been same size or smaller as has more protein in the formula

R
Russell
Vanilla
Solid

I've only tried vanailla and it's quite a strong, sweet flavour. I find it a bit easier to tolerate by mixing in either some cocoa powder or instant coffee. One scoop serving is a solid amount and can sit a bit heavily in the stomach depending on what else you've already eaten. I tend to mix it into my muesli in the morning and that's quite a good way to get a dose.

A
Anonymous
Natural
Sensational

I started looking for an alternative option to my regular protein powder because I was concerned about amt of plastic packaging….And it seemed like every container had less in it. I discovered Nothing Naughty via a search. I gave it a go because as a trial. I prefer no flavour protein powders, and I was rapt from the first try. Nothing Naughty is super creamy. Mixes well, comes in a paper bag chockers-full with product. And if you’re concerned about the packaging and delivery. Don’t be. My protein powder arrived safe, no torn packaging and it was super quick to Australia. I’m onto my second lot and will continue to buy it. Thumbs up on every regard.