NZ Whey Protein Isolate
- Sourced from NZ Pasture Fed Cows
- Low Carb (1.2%), Low Fat (1%) & 99% Lactose Free
- Providing High Quality Protein
- Naturally Rich in BCAAs
- Contains Naturally Occurring Whey Fractions
Our NZ Whey Protein Isolate is produced in New Zealand from grass fed dairy cows that graze year round on New Zealand's green pastures. It is undenatured and made from cheese whey to deliver a concentrated source of protein.
NZ WPI is made from cheese whey and is processed through cross flow micro-filtration and ultra-filtration to enable the protein to remain undenatured. The result is a clean whey that contains over 93% protein (dry basis, natural flavour) with only 1% fat and 1.2% carbohydrates.
The flavoured options are made with organic flavours and natural sweetener, providing a convenient way to add protein to your diet.
The facts are:
- Cross Flow Micro-Filtration naturally isolates undenatured protein due to its low temperature process
- Undenatured Protein containing naturally occurring whey microfractions such as 43.8% Beta-Lactoglobulin, 20.3% Glycomacropeptide, 15.2% Alpha-lactalbumin, 3.4% Immunoglobulin, 1.2% Bovine Serum Albumen and small amounts of Lactoferrin and other minor proteins
- From Pasture Fed Cows raised on natural grass and clover pastures
- Free from Antibiotics & Genetically Engineered Recombinant Bovine Growth Hormone (rBGH)
- Free from acid processing
- Naturally Rich in BCAA's (Branched Chain Amino Acids)
- Very High Protein at 93.1g per 100g on a dry matter basis (Natural Flavour)
- Low Fat at 1g of fat per 100g (Natural Flavour)
- Low Carb at 1.2g of carbohydrate per 100g (Natural Flavour)
- Instantised for easy mixing in water and milk
- Free from artificial sweeteners (such as sucralose), artificial flavours, gums or fillers
- Non GMO, Halal Approved, Suitable for Vegetarians and Gluten Free
Starting at $72 in natural flavour, it mixes easily and comes in our 5 famous organic flavours ($8 more per kg). All bags come packaged in 1kg bags to keep your purchase fresh.
Available in: Natural, Organic Vanilla, Organic Cacao, Organic Cacao Mint, Organic Salted Caramel, Organic Banana + 4x1kg Multi Organic Flavour Pack + Free Shaker 4x1kg Pack = 1kg Cacao, 1kg Vanilla, 1kg Cacao Mint, 1kg Salted Caramel + Free Shaker N.B Cannot be modified
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Formulated Supplementary Sports Food
Not to be used as a sole source of nutrition. This product should be used in conjunction with a healthy, nourishing diet and an appropriate physical training or exercise program. Not suitable for children under 15 years of age or pregnant women: should only be used under medical or dietetic supervision.
- Sourced from NZ Pasture Fed Cows
- Low Carb (1.2%), Low Fat (1%) & 99% Lactose Free
- Providing High Quality Protein
- Naturally Rich in BCAAs
- Contains Naturally Occurring Whey Fractions
Mix 30g (one level scoop) NZ WPI into 250ml of milk or water until dissolved in a shaker. Use less liquid for a stronger taste and thicker consistency.
Serving Size: one scoop (30g)
Servings Per 1kg Pack: 33
Ingredients (Natural Flavour): Whey Protein Isolate (Milk), Non GMO Sunflower Lecithin (Trace)
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Ingredients (Organic Cacao Flavour): Whey Protein Isolate (Milk), Organic Cacao, Thaumatin (Natural Sweetener), Non GMO Sunflower Lecithin (Trace)
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Ingredients (Organic Vanilla Flavour): Whey Protein Isolate (Milk), Organic Vanilla Bean, Thaumatin (Natural Sweetener), Non GMO Sunflower Lecithin (Trace)
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Ingredients (Organic Cinnamon Flavour - DISCONTINUED): Whey Protein Isolate (Milk), Organic Cinnamon, Non GMO Soy Lecithin, Thaumatin (Natural Sweetener)
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Ingredients (Organic Cacao Mint Flavour): Whey Protein Isolate (Milk), Organic Cacao, Non GMO Soy Lecithin, Natural Peppermint Flavour, Thaumatin (Natural Sweetener)
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Ingredients (Organic Salted Caramel Flavour): Whey Protein Isolate (Milk), *Organic Salted Caramel, Non GMO Soy Lecithin, Thaumatin (Natural Sweetener). *Flavour is a minimum of 95% Organic and maximum 5% Natural Non GMO ingredients.
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Ingredients (Organic Banana Flavour): Whey Protein Isolate (Milk), *Organic Banana Flavour, Thaumatin (Natural Sweetener), Non GMO Sunflower Lecithin (Trace). *Flavour is a minimum of 95% Organic and maximum 5% Natural Non GMO ingredients.
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Allergens: Contains milk, dairy & soy products
I love it
By: Alena on 20 March 2026Thanks for this amazing quality protein! Now that I know I like it so much, I’d love to order a bigger size, like 5 kg.
(5)
Purest and best WPI available
By: Rodney on 27 February 2026NZ WPI natural is the purest whey available. It has no artificial anything.... just the purest whey from New Zealand grass fed cows... It mixes extremely well in plain warm water, and can be added to yoghurt without altering taste... I have not found anything better than this.... the price is reasonable, and quality very consistent.. hopefully this review does not knock the price up.... its the best
(5)
5 stars!
By: Sarah on 5 February 2026I love how transparent the brand is around providing a clean protein. I’ve always struggled with the synthetic taste of proteins and the Professional whey flavourless NZ WPI is a staple for me now daily!
(5)
NZ Whey Protein Isolate (natural 1kg)
By: Liz on 4 February 2026Great product! Love that's it's natural and lactose free! I've tried other protein powders over the years but always come back to this one.
(5)
Smoothest protein ever
By: Ashley on 31 December 2025Recommended to me during pregnancy to meet my protein needs and I was so happy with it. Mixes so well with any liquid - not gritty, sticky or thick - super smooth and allows the other flavours you put with it to shine vs taking over. I also like it doesn’t make me feel sickly full, it’s satisfying yet light! Excellent product can highly recommend.
(5)
Wouldn’t by any other protein powder
By: Rene on 6 December 2025I absolutely love this protein powder, I’m sensitive to dairy so being able to have protein powder that doesn’t upset my tummy is fantastic. Not only is it gentle it’s super high in protein and the formula turns out beautifully, I use it in a blender to make a smoothie and the consistency is just heavenly. Knowing there are no nasty additives either gives me peace of mind. It may be a bit more expensive but I’d rather pay for a quality product then fill up on a powder full of junk.
(5)
WPI review
By: Sophie on 7 November 2025Absolutely love the WPI from professional whey. I like to make sure my diet doesn’t consist of any nasties or additives and is of high quality with natural high quality ingredients. It’s so comforting to find a company that also cares about producing these foods/powders and being able to sell them at an affordable price!
(5)
Great Natural Product
By: Karen C on 31 October 2025We always buy WPI from NZ because it's from New Zealand with a "no frills packaging" (better for the environment). It's exceptional in fact, as it blends really well into whatever type of protein smoothie we like or just plain with milk or a vegie type milk (if lactose intolerant) and add a little goji berries or freshe/frozen berries for some natural flavour. Our whole family uses it and it's reasonably priced compared to other fancy packaged brands, where you're paying for the packaging that has to go to landfill... Fantastic product all round!
(5)
Healthy and Reliable Whey Powder
By: Mabel Cheng on 15 October 2025My first order turned out to be a pleasant experience as I initially ordered Hydrolysed powder but changed my mind. The customer representative patiently answered all my queries and provided me with a lot of additional information on other products which I will try next time. They were prompt in amending my order and processed the refund.
(5)
Best protein
By: Sunny on 7 October 2025Have had many different protien in the past but by far this is the best . No crap just pure protien
(5)
Great Product
By: Michelle on 10 September 2025We add this to our Mango yogurt bowl
(5)
Best Value Whey Isolate Protein in the market
By: Alexandra Laws on 31 August 2025Best grass fed Whey Isolate Protein in the market. Clean, great tasting a best price point. We order multiple bags at a time and refer to all our friends, family and clients.
(5)
Amazing Product
By: Kelly Howman on 8 May 2025I have tried a few good quality protein powders over the years and this one surpasses all the others by far. Exceptional quality, mixes and dissolves better than any other, and clean. Will try the cacao one next
(5)
Fabulous Whey Protein Isolate - Natural flavour
By: Stuart Deck on 14 April 2025Just tried this grass fed WPI for the first time and extremely happy with it. Thank you for supplying an amazing product that is locally sourced across the ditch that you can be confident meets local standards and is also gluten free. Definitely not going back to products that have no details other than country of origin where they likely mass produced.
(5)
Good Stuff!!
By: Zak James on 4 March 2025Very happy with the product. No added unnecessary additives and rubbish just the good stuff. I have it in my granola with kefir and dissolves fine. Thank you very much for top quality.
(5)
Love it!
By: Michelle Swan on 6 February 2025I highly recommend the NZ Whey Protein Isolate from Professional Whey. My daughter put me on to it to help me increase my protein intake. I love that it has no additives and blends so easily into my smoothies. Ordering is simple and purchases arrive quickly once ordered. I am so happy with this product
(5)
Top-Quality Whey with Clean Ingredients!
By: Coppelia Rose on 6 February 2025I've tried many whey protein isolates over the years, and this is by far one of the best! The texture is incredibly smooth, it mixes effortlessly (even just with water), and the taste is clean without any artificial aftertaste. I love that it’s sourced from grass-fed cows, ensuring top-quality protein without unnecessary additives. Plus, the high protein content and minimal carbs make it perfect for post-workout recovery without any bloating. This has become my go-to protein—highly recommend it to anyone looking for a clean, effective, and great-tasting whey isolate!
(5)
Best Protein supplement ever!
By: Jeanne-Marie van der Westhuizen on 14 August 2024Ive tried them all (or so it seems) and this is the best: neutral flavour, texture good and easily blended. Also - comes from cows grazing in New Zealand pastures: pure goodness!
(5)
Amazing
By: Sinan Koray on 4 August 2024I really like this product. It is easy to dissolve in water, it tastes great and easy to drink. I will buy it again (when I finish what I have).
(5)
Love this product
By: Jo-Anne Baker on 31 July 2024I have been using protein powder for many years and a friend suggested I try this brand, I am now on my second order because I love it so much, no bloating or discomfort, it is delicious and look forward to my smoothie everyday.
(5)
Exceptional Quality
By: Giulio Taranto on 5 July 2024This is by far the best whey protein I’ve had. You can taste the quality and purity. Remarkably effective in reducing muscle soreness and fatigue. Highly recommend.
(5)
My favourite WPI
By: Lachlan Dalton on 29 June 2024After searching for my ideal WPi for years I've finally found one with all the ingredients I want without all the sugar and other non- essentials, and great value as well . I advise everybody should compare the ingredients of there current WPI and you'd be surprised what you're paying for.
(5)
Tastes like a thick shake but good for you
By: Lynda Trimboy on 16 May 2024This is the best whey protein powder I have tried. With no nasty additive, fake sugars or anything you wouldn’t want to put in your body, it’s is absolutely delicious. It not only packs a good protein punch but does so with very little carbs or fats so perfect for weight loss while increasing protein. Only protein powder I will ever buy.
(5)
Efficient Supplier & Effective Product
By: David Cowley on 29 March 2024Very happy with the Natural taste and the support it gives my body to build muscle/strength.
(5)
Great Product!
By: Tim Curtin on 15 March 2024Mixes well with a nice neutral taste (unflavoured) which is great for mixing with berries, honey, PB, cocoa, etc. My gut and body responds well to it. Also very cost effective! 10/10 thanks guys
(5)
Great WPI
By: MAGGIE PEREZ on 13 October 2023Loving the unflavoured WPI. Mixes well in my smoothies and yogurht. I'm really enjoying it.
(5)
Whey better than previous product
By: Darryl Brooks on 21 August 2023Very good clean protein Isolate
(5)
NEW ZEALAND WHEY PROTEIN
By: Tahir Ahmad on 16 April 2023WHEY PROTEIN FOUND AS DESCRIBRED, RELIABLE SELLER, QUICK DELIVERY, NICE TO DEAL, THANKS. *******
(5)
Whey isolate
By: Simon Gerard on 11 February 2023Great product. I use unflavoured, good for shakes.
(5)
NZ Whey Protein Isolate
By: Tahir Ahmad on 8 June 2022Nice & clean product, bought few times, good communications, quick delivery. Thanks. A+++++
(5)
Pure and Excellent
By: Peter Lefroy on 24 March 2022I have been training very hard for 35 years and used many different companies who misrepresent what they sell. NZ Whey is Authentic Pure and Excellent and definitely worth the money considering it is for your health. I will be their loyal customer until I draw my last breath. Peter J Lefroy.
(5)
Well Powerful Ingredients
By: Ramsey Imam on 23 March 2022I’ve been using this for a about 5 years now and have found it very beneficial for my fitness regime, not only for helping with recovery after exercise, but as a protein booster to my morning cereal. That means I don’t need any snacks mid-morning as I am satiated up until lunchtime (and I ride a bike to work every day 15 to 20 minutes each way, so I think that’s a pretty good result).
(5)
Great protein
By: Jack Richards on 13 December 2021I have been buying this WPI for a few years now, it is a great product. Very clean tasting, no gut issues at all, and mixes well. Highly recommended. Professional Whey are also excellent to deal with. Very fast shipping and never have a drama. Cheers!
(5)
Loving my new clean and natural protein
By: Ashlee Arnold on 29 August 2021Professional Whey's NZ WPI has so much going for it. I opted for the natural flavour version so I had more versatility. It tastes great by itself, but I can add whatever I like and get creative each day. I'm really glad I did my research and found these guys. I absolutely recommend you try it out if you're looking for a tasty and clean non-flavoured protein powder.
(5)
Simply the best
By: Bedelia Wilson on 11 August 2021I have been using this product for a few years now and swear by it. It’s simply the best.
(5)
The only protein powder I will use!
By: Karen Merrilees on 16 July 2021I have been using this product for years and won't change. The natural flavour is my preferred option because I can add it to anything. Love the fact that it is pasture fed and sourced from NZ. Excellent product thanks!
(5)
1 st time buyer
By: Michelle Kyan on 15 July 2021The NZ WPI has been a great addition to my smoothies. I bought Natural so I can add it to anything, but I'll definitely be adding other flavours to make new recipes...thanks!
(5)
Good product
By: Matthew Routledge on 11 October 2020Stacking Ajinomoto Glutamine with WPI, WPC, Casein & collagen hydrolysate to get my protein levels up to 100g/day. I'm feeling energetic, better concentration, sore feet is much reduced & recovering from a hard days work seems much improved. I like this company, good clean products.
(5)
Whey Protein Isolate
By: D Gleeson on 5 September 2020Great product , Prompt good service And delivery. Would recommend positively.
(5)
NZ Whey protein isolate
By: Michael Hayward on 11 June 2020Awesome product. Ticks all the boxes for me.
(5)
Very good product with a very competitive price
By: Denny Thomas on 18 April 2020Very good product with a very competitive price
(5)
Quality product, neutral taste.
By: Vikas Jayaram Shankara Narayana on 9 October 2019NZ WPI is my go to choice for quality protein. It is flavourless (with only a sweet tasting milk like flavour) and mixes well with my favourite 100% coconut water for a great post work out meal. To my knowledge this product has one of the highest available protein per g with none of the nasties.
(5)
Best WPI I have tried
By: Matthew Eckhaus on 17 April 2019This is the cleanest tasting and easiest to dissolve Whey Isolate I've tried. It has a really good natural flavour. I don't bother with the flavoured varieties.
(5)
The best WPI product on the market.
By: Rodney Hee on 28 March 2019The natural is the my pick as there is absolutely nothing else added. I usually add to it coconut sugar and cocoa powder or a double shot espresso.
(5)
Won’t be getting WPI anywhere else
By: Rob Richards on 3 March 2019I am super happy with this product and everything I’ve bought from Professional Whey. Really good products, service and prices.
(5)
Natural only
By: Elizabeth Hannigan on 12 January 2019I have been using this product for a number of years. I love that I can just have the whey 'natural', as I cannot stand the addition of any type of sweeteners (natural or artificial). I have the whey mainly with water after a workout and sometimes with milk. Just the best.
(5)
Very happy
By: Rob Richards on 5 December 2018It’s a super product and couldn’t be happier.
(5)
Old timer
By: M Batchelor on 28 November 2018I’ve been using this product for a long time and it is very nice. I don’t even mind it just on it’s own in filtered water. But you can use it for all different ways of adding protein to your day when you need it to take away hunger or refuel after hard work in the garden. It seems to taste nicer than other whey products I’ve tried!
(5)
Exellence
By: James Clacy on 1 September 2018Spot on Much better than the American or Chinese Protein Isolates our friends in China love it. Try to keep the price as low as possible. I would love to tell my friends NZ Whey Protein Isolate is the best and the cheapest.
(5)
Great mid range WPI
By: David Banks on 6 August 2018This is my go to WPI. Mixes well, tastes great and priced to perform. Digests great as a part of a pre workout stack.
(5)






