USA Whey Protein Isolate

  • Most economical WPI with approx 90% protein
  • 2% carbs, 1% fat and 99.3% lactose free
  • Aids growth & repair of muscle tissue
  • Ideal for low-carbohydrate diets
  • Speeds up recovery
  • Increases protein synthesis
  • Helps to boost the immune system
Weight & Flavour
Quantity
5 out of 5 stars from 109 reviews
$36.00
Bulk Buy Discounts
2+ @ $33.00 each
3+ @ $31.00 each
4+ @ $30.00 each
5+ @ $29.00 each
10+ @ $27.00 each
15+ @ $26.00 each

USA Whey Protein Isolate is our most economical WPI. It is completely undenatured and high in whey micro fractions as it is made from fresh cheese whey and processed through low temperature Cross Flow Microfiltration. It is manufactured by Glanbia, the USA's number one whey protein isolate manufacturer (they own ON and BSN) and contains only 0.84% fat and 2% carbs whilst being 91.6% protein (dry basis - natural flavour).

The flavoured varieties are made with Organic Flavours & Natural Sweeteners making it tasty and ideal for those who want to enjoy a healthy protein shake or as a pre and post workout supplement. The facts are:

  • Cross Flow Microfiltration naturally isolates undenatured protein due to its low temperature process.
  • 100% Undenatured Protein containing immune boosting whey microfractions such as 55.4% Beta-Lactoglobulin, 20.6% Glycomacropeptide, 20.5% Alpha-lactalbumin, 2% Immunoglobulin, 1% Bovine Serum Albumin and 0.5% Lactoferrin.
  • Free from acid processing.
  • Very High Level BCAA’s (Branch Chain Amino Acids) helping to increase protein synthesis.
  • Rapid Absorption of amino acids into the bloodstream.
  • Very High Protein at 91.6g per 100g on a dry matter basis (Natural Flavour).
  • Low Fat at 0.84g of fat per 100g (Natural Flavour).
  • Low Carb at 2g of carbs per 100g (Natural Flavour).
  • Instantised to easily mix in water and milk.
  • Free from artificial sweeteners (i.e sucralose), artificial flavours, gums or fillers.
  • Non GMO, Kosher, Halal, Vegetarian Approved and Gluten Free.

Starting at $36 in natural flavour, it mixes easily and comes in our 4 famous organic flavours ($8 to $16 more per kg - depending on the flavour). You can take advantage of our Bulk Buy Discounts. They only apply for the same flavour unless you buy our 4kg Multi Organic Flavour Pack. All bags come packaged in 1kg bags to keep your purchase fresh with exception to the original manufacturers 20kg unflavoured whey protein isolate bag purchase.

Available in: Natural, Organic Cacao, Organic Vanilla, Organic Cinnamon & Organic Cacao Mint + 4x1kg Multi Organic Flavour Pack + Free Shaker 4x1kg Pack = 1kg Cacao, 1kg Vanilla, 1kg Cacao Mint, 1kg Cinnamon + Free Shaker N.B Cannot be modified

Note: If you are looking for a more economical whey protein, take a look at our SELECT Whey Protein Concentrate, available in natural and organic flavours.

  • Most economical WPI with approx 90% protein
  • 2% carbs, 1% fat and 99.3% lactose free
  • Aids growth & repair of muscle tissue
  • Ideal for low-carbohydrate diets
  • Speeds up recovery
  • Increases protein synthesis
  • Helps to boost the immune system

Mix 30g (one level scoop) of USA Whey Protein Isolate into 250ml of milk or water until dissolved in a shaker. Use less liquid for a stronger taste and thicker consistency.

For Best Results: Gain maximum benefit by consuming pre workout and/or post workout.

Serving Size: one scoop (30g)

Servings Per 1kg Pack: 33

Ingredients (Natural Flavour): Whey Protein Isolate, (NON GMO) Soy Lecithin 0.2%

Typical Nutritional Information Amino Acids per 100g of Protein
Natural Per 30g Per 100g
Energy (kJ) 466 1554
Calories 111 370
Protein (dry basis) 27.9g 91.6g
Protein (as is) 26.4g 88.0g
Fat 0.25g 0.84g
- saturated 0.09g 0.29g
Carbohydrates 0.6g 2.0g
- sugars 0.2g 0.7g
Sodium 60mg 200mg
Branch Chain Amino Acids Other Amino Acids
Isoleucine 6.8g Arginine 2.0g
Leucine 10.2g Cystine 2.4g
Valine 6.1g Glycine 1.9g
Other Essential Amino Acids Proline 6.4g
Lysine 8.9g Tyrosine 2.5g
Methionine 2.0g Aspartic Acid 11.5g
Phenylalanine 3.0g Serine 4.8g
Threonine 7.7g Glutamic Acid 15.7g
Tryptophan 0.9g Alanine 5.9g
    Histidine 1.2g

 

Ingredients (Organic Cacao Flavour): Whey Protein Isolate, Organic Cacao, Soy Lecithin (NON GMO), Organic Stevia Extract (Natural Sweetener), Thaumatin (Natural Sweetener)

Typical Nutritional Information Amino Acids per 100g of Protein
Natural Per 30g Per 100g
Energy (kJ) 453 1510
Calories 108 360
Protein (dry basis) 26.0g 86.4g
Protein (as is) 24.9g 83.1g
Fat 0.5g 1.65g
- saturated 0.23g 0.79g
Carbohydrates 1.0g 3.4g
- sugars 0.23g 0.77g
Sodium 55mg 184mg
Branch Chain Amino Acids Other Amino Acids
Isoleucine 6.8g Arginine 2.0g
Leucine 10.2g Cystine 2.4g
Valine 6.1g Glycine 1.9g
Other Essential Amino Acids Proline 6.4g
Lysine 8.9g Tyrosine 2.5g
Methionine 2.0g Aspartic Acid 11.5g
Phenylalanine 3.0g Serine 4.8g
Threonine 7.7g Glutamic Acid 15.7g
Tryptophan 0.9g Alanine 5.9g
    Histidine 1.2g

 

Ingredients (Organic Vanilla Flavour): Whey Protein Isolate, Organic Vanilla Bean, Soy Lecithin (NON GMO), Organic Stevia Extract (Natural Sweetener), Thaumatin (Natural Sweetener).

Typical Nutritional Information Amino Acids per 100g of Protein
Natural Per 30g Per 100g
Energy (kJ) 465 1551
Calories 111 369
Protein (dry basis) 26.9g 89.8g
Protein (as is) 25.9g 86.3g
Fat 0.28g 0.92g
- saturated 0.08g 0.28g
Carbohydrates 1.05g 3.5g
- sugars 0.21g 0.7g
Sodium 59mg 196mg
Branch Chain Amino Acids Other Amino Acids
Isoleucine 6.8g Arginine 2.0g
Leucine 10.2g Cystine 2.4g
Valine 6.1g Glycine 1.9g
Other Essential Amino Acids Proline 6.4g
Lysine 8.9g Tyrosine 2.5g
Methionine 2.0g Aspartic Acid 11.5g
Phenylalanine 3.0g Serine 4.8g
Threonine 7.7g Glutamic Acid 15.7g
Tryptophan 0.9g Alanine 5.9g
    Histidine 1.2g

 

(Organic Cacao Mint Flavour) Ingredients: Whey Protein Isolate, Organic Cacao, Soy Lecithin (NON GMO), Natural Peppermint Flavour, Thaumatin (Natural Sweetener), Organic Stevia Extract (Natural Sweetener).

Typical Nutritional Information Amino Acids per 100g of Protein
Natural Per 30g Per 100g
Energy (kJ) 460 1532
Calories 111 366
Protein (dry basis) 26.6g 88.8g
Protein (as is) 25.6g 85.4g
Fat 0.37g 1.24g
- saturated 0.16g 0.54g
Carbohydrates 0.81g 2.7g
- sugars 0.25g 0.83g
Sodium 58mg 192mg
Branch Chain Amino Acids Other Amino Acids
Isoleucine 6.8g Arginine 2.0g
Leucine 10.2g Cystine 2.4g
Valine 6.1g Glycine 1.9g
Other Essential Amino Acids Proline 6.4g
Lysine 8.9g Tyrosine 2.5g
Methionine 2.0g Aspartic Acid 11.5g
Phenylalanine 3.0g Serine 4.8g
Threonine 7.7g Glutamic Acid 15.7g
Tryptophan 0.9g Alanine 5.9g
    Histidine 1.2g

 

Ingredients (Organic Cinnamon Flavour):  Whey Protein Isolate, Organic Cinnamon, Soy Lecithin (NON GMO), Thaumatin (Natural Sweetener), Organic Stevia Extract (Natural Sweetener).

Typical Nutritional Information Amino Acids per 100g of Protein
Natural Per 30g Per 100g
Energy (kJ) 465 1552
Calories 111 369
Protein (dry basis) 26.9g 89.8g
Protein (as is) 25.9g 86.3g
Fat 0.26g 0.86g
- saturated 0.08g 0.28g
Carbohydrates 0.96g 3.2g
- sugars 0.21g 0.7g
Sodium 59mg 196mg
Branch Chain Amino Acids Other Amino Acids
Isoleucine 6.8g Arginine 2.0g
Leucine 10.2g Cystine 2.4g
Valine 6.1g Glycine 1.9g
Other Essential Amino Acids Proline 6.4g
Lysine 8.9g Tyrosine 2.5g
Methionine 2.0g Aspartic Acid 11.5g
Phenylalanine 3.0g Serine 4.8g
Threonine 7.7g Glutamic Acid 15.7g
Tryptophan 0.9g Alanine 5.9g
    Histidine 1.2g

 

Allergens: Contains milk, dairy & soy products. 

The only wpi I use

By: on 6 April 2017
Have been using this protein supplement strictly since 2013, i use 1 scoop 1 hour pre workout and 1 scoop post workout, this allows me to get that extra 50g or so of protein that i struggle to get in from food due to busy schedule. Favorite Protein on the market can add any flavourings to it sometimes just blend it in with some fruits or mix some organic honey with it.
(5)

Best quality/price WPI

By: on 6 March 2017
Have been using this product for several years to great effect. I love to mix 40g into a bowl of Chobani yogurt and consume just before bed for a great protein boost. Don't bother with the flavourings - go natural!
(5)

Proven winner

By: on 9 December 2016
This is my preferred protein supplement for my competition level olympic lifting training. Reliable, lean, easily dissolved in milk or water, I drink 4-6 scoops a day to supplement a meat, greens and water diet.
(5)

Great product

By: on 8 December 2016
Very smooth and easily added to a variety of drinks or cooking. This is a good value option. First time user, I'm ordering again
(5)

Only the best

By: on 13 September 2016
Ive been exclusively using Professional Whey for more than 3 years and keep coming back because of the excellent quality and reasonable pricing. Can recommend to ANYONE who is looking for a high quality whey protein minus all the bogus BS that some other manufacturers add to theor protein.
(5)

Repeat purchase

By: on 7 September 2016
Product is excellent. Unflavoured is easy to mix and drink. Shipping is crazy fast. Best price and service around, repeat purchases are a no-brainer.
(5)

Best bang for buck

By: on 17 July 2016
I've used several flavours of this great protein. Quality product at a fantastic price especially when compared to local in store buys! Overnight delivery at a fixed price is just a bonus!
(5)

Kanga Juice (Cacao)

By: on 17 June 2016
If you asked me 6 months ago would I fight a kangaroo in a fist fight, I would of quickly responsed with a "NO" and gone down the crevasse of my bed and gone to my happy place, with my fiancee following that up with a bathing in lemongrass essential oils and warm water. Once I discovered USA Whey my whole life changed. I now sleep on a bed of nails, I fight kangaroos for a living and have the most unbelievable sex life. Thank you professional whey you saved me externally and internally
(5)

Why would you want to buy an overpriced commercial

By: on 7 June 2016
Why would you want to go and buy a "branded" protein powder that is oozing fillers and fake chemicals. This protein powder is amazing. All natural, good quality and well priced. You can't get much better than this.
(5)

Wish I found this sooner!

By: on 7 June 2016
Just switched over from vanilla to cinnamon after reading a review below and i cant believe that there isn't any artificial crap in this! Whenever I have a sugar craving I drink one of these and I'm good.
(5)

Love it, love it.

By: on 19 May 2016
The USA WPI has been a staple 3 or 4 years now. I love that it is all natural and contains no artificial sweeteners. Recently, I have combined the unflavoured WPI with Professional Whey Organic Cinnamon for extra flavour, along with PW Dextrose post-workout. This product is a must-try if you want a high-quality, pure protein.
(5)

Go to protein

By: on 16 May 2016
Started using this 2 months ago. Very easy to mix and have not noticed any taste or texture issues with shakes . Using it inline with carb backload diet and finding better recovery from sessions and the numbers are all goin north in the weight room while bodycomp improving. My go to protein from now on
(5)

Can't get enough

By: on 13 May 2016
I don't consider myself a gym junkie or an expert in this subject but I have to say that not only does the organic vanilla taste better than any other protein I've tried (both here and in the U.S) it's the first protein powder I've bought that I haven't had any sort of allergic reaction to. Also very affordable!! Will keep buying if they keep making it!
(5)

Good Qualilty WPI

By: on 5 May 2016
I have been using their WPI for many years. I have try other brand as well, but I still go back to professionalwhey, because of their clean taste and quality. Their price is competitive too. The mixability of the powder is also good, no clumping. No doubt, I will continue buying from them.
(5)

Versatile & Easy to use

By: on 30 April 2016
I bought the Natural/Unflavoured protein. I have made a fantastic homemade thick no fat Greek yogurt, and I mix it in my milk to make a cappuccino and into my breakfast porridge with cinnamon and honey. I have also used it in raspberry smoothies and bircher muesli. Very important - will NOT mix into hot liquids, only cold and room temp liquids. I made a vanilla milkshake with it, but I needed much more ice cream and/or sugar than usual to hide the whey taste, so i guess it needs the stronger flavours like coffee and berries to hide it. Otherwise this is fantastic for what I use, and it made the best yogurt I've ever made.
(4)

Great flavours

By: on 26 April 2016
All the flavours are excellent compared to other brands and are great value. Although I would stay away from the unflavoured, natural as it does not mix well.
(4)

CINNAMON DOUGHNUTS

By: on 22 April 2016
Seriously- if you love cinnamon doughnuts you need to try this stuff! It tastes amazing, has no yucky artificially sweet flavours or horrid protein after-taste! It's like a combination of a vanilla milkshake and a cinnamon doughnut rolled into one! Seriously- I've never tasted any better!!!
(5)

Best protein

By: on 14 April 2016
I like this product because it has a high % of protein per serve, its natural and the natural flavour is great for mixing with other products such as pre workouts, greens and BCAAs.
(5)

Quality Product!

By: on 19 March 2016
I've been purchasing USA Whey Protein Isolate from Professional Whey in bulk every six months for the last five years. The quality is excellent and it is a very cost effective supplement. The 1kg foil packages keep the protein fresh which is great when you buy in bulk like I do. The consistency in the quality and price of this product is the reason I keep coming back.
(5)

Great Results!!

By: on 26 February 2016
I love this product because it reacts well with my body, the taste is a million times better than anything I've tried before and it WORKS! I suffer a lot of back pain when I workout and this product does me a world of good! Thank you Professional Whey!
(5)

Pure product. Exactly what I want

By: on 11 February 2016
Repeat customer here. The purity is what I find most appealing in this product. Low carb, high protein. Neutral flavor mixes well with Oatmeal or shakes. Not as strong a flavor as the WPC variant, which is a positive for me. I take it straight with water before gym and mixed in Porridge in the morning, but I recommend sampling before committing to unflavored as some people can understandably be put off. Fast delivery with added bonus to allow them permission to hide it somewhere specific if you're not home.
(5)

Whey Protein Isolate

By: on 16 December 2015
Hi, Your natural Whey Protein Powder is such a great start to my day. I add my own fruit and goodies for flavour and feel the boost! After my workout I drink up impressed with my recovery. What a life-saver!
(5)

Wpi vanilla flavour

By: on 14 December 2015
Thank god I only bought one pack of the vanilla flavour. It is really nasty to taste. Have just switched from PW wpc to wpi so am hoping the other wpi bags which I bought unflavoured, taste like the wpc unflavoured one because that one is fine.
(1)

The best!

By: on 7 December 2015
I wanted to find a protein powder that was natural without artificial flavours & sweeteners. This WPI is that! It also has a great natural taste as well as mixing easily into any liquid. Highly recommended!
(5)

Quality Whey at reasonable price

By: on 2 December 2015
I have been using this product for about 6 month and absolutely love the consistency and texture. Blends well and is perfect with almond milk. High quality product. Would highly recommend to others wanting to up their protein intake.
(5)

The Best Whey By Far

By: on 2 December 2015
I have tried many whey powders over the the last 20 years, from expensive sugar filled bulking mixtures to cheaper, bad tasting brands. This is by far the very best I have ever had. All natural organic ingredients, sugar free and great tasting; really creamy taste. It's low carb so it's perfect for before bed time too. I've made impressive gains over the last 12 months of using this before and after my training. Delivery is fast (usually next day for me) and I really cannot recommend it enough, which is why I am a regular customer.
(5)

Amie

By: on 17 November 2015
I love this WPI, I use it straight after the gym with water as well as add it to protein balls and smoothies. High quality product!
(5)

Milli vanilli

By: on 9 November 2015
I have been using this product off and on for 2-3 years and love it! Great for smoothies, cooking in clean eating recipes and readily shakes with water for a pre or post workout boost. Even better, I can order on line and it is delivered super quick with no fuss. Can highly recommend both the product and the company.
(5)

True to form!

By: on 9 November 2015
I have been using this protein for about 2 years now and just love it! Great product and can be blended in with any fruits or shakes with ease. Compared to the marketplace that may have sweet tasting powders this is just all about the benefits and outcomes. I have noticed improvement in my ability to consume this protein and not get the sick feeling like others have in the past. Also I have found my muscle strength has improved and in a short time with my training.
(5)

Top quality product.

By: on 28 October 2015
I started to get rashes from flavoured WPI made by some other brands (Gold Standard being one of them), and I was pretty sure it was the artificial flavours and additives that caused my allergic reaction. So it worked out really well for me to stumble upon PW, and to find that they have a "natural" option. No protein powder is going to magically make you supersized overnight, but this product has certainly helped me with getting stronger and faster in a much more efficient way. Highly recommended (Especially if you're allergic to other brands like me)
(5)

Amazing stuff!

By: on 8 October 2015
I just love this product. Simply natural and not overly sweet! Easy to get down the hatch and not feel bloated or weighed down. It's all I have now
(5)

My daily staple

By: on 14 September 2015
My husband and I have been using this product in our smoothies every morning for the past 18 months. We have never been healthier and got through winter without one sniffle between us! Not only does it taste great but is satisfying and makes for a great smoothie. We are both in our early 60s. WE still train most days and live a healthy lifestyle. WE are not trying to build muscle mass, just trying to stay healthy and this product is the best I have found to help us keep to our goals. I couldnt recommend it highly enough.
(5)

This product really works

By: on 9 September 2015
Briefly, I started training 2 months ago. The gym trainer gave me a training program and asked me to consume around 150 grams of protein daily. Last week, the trainer reviewed my muscle gaining result and he was pleased. And as you may know, substantial muscle gain cannot occur without both: effective training and sufficient diet. So how do I know that this product works? It is because I am consuming most my recommended protein intake from this product. And going really well
(5)

Mr

By: on 28 August 2015
Clean, lean, mixes easily and is very palatable without flavouring. Does not make me break out in gross pimples and no filthy farts. Great product!
(5)

Mr

By: on 18 August 2015
I have taken different whey protein blends and formulas in the past. I have to say that this whey is amazing. It mixes very easily with the water without leaving any lumps. I can feel that it has really helped my recovery and also helped my strength get to a new level. I liked the protein so much I had to buy 4 packs the next time I needed protein.
(5)

WPI

By: on 17 August 2015
This protein is simply the best of the best! Having purchased countless kgs of it over the past year - in training for my first body building competition - this fast absorbing, delicious tasting, additive free protein is a winner in all areas. Online ordering is fast and hassle free, with only one delay in the last 12mths that was quickly and professionally rectified. If I could, I'd be giving 6 stars! Cacao mint is my favourite, but organic vanilla is also up there!
(5)

Buying again

By: on 15 August 2015
Bought a sample in both vanilla & cacao was very happy. Taste great, mixes well & high nutritional value compared to others on the market. Can't really ask for more and the value is great. Will keep ordering this and the AUS whey just to mix things up a bit
(5)

Whey Protein Isolate

By: on 28 July 2015
Natural flavor was my favorite because it has a light taste and have no negative impact on my diet or stomach. It is nutritious and very easy to blend, Would recommend to anyone who loves working out and need a protein boost. It is a great supplement and contains virtually no carbs or fats. Game on!
(5)

20Kg Whey protein!

By: on 28 July 2015
Lovely protein that was easy on the stomach and light-tasting. It goes well with milk and blends very smoothly with water. It is worth the price over other average protein. Buy in 20Kg bulk if you have a cool dark place to store it! =)
(5)

USA = A OK

By: on 24 July 2015
I love the fact that I can now take a protein supplement without any artifical colours, flavours or additives. So many Whey supps on the market are full of rubbish and left me (and my wallet) feeling the same. The PW USA Protein is by far the best I've had. Great value for money and Cacao tastes awesome.
(5)

USA whey Protein

By: on 20 July 2015
Love the product, great mixability and tastes amazing, cacao is my favourite thust far !! Will continue to use Professional Whey :)
(5)

Tasty Protein

By: on 17 July 2015
Taste great in my morning shakes, and mixes well too...all for a great price
(5)

best plain WPI on the market.

By: on 11 July 2015
I like buying in bulk for the last couple of years iv been using the WPC 20Kg bag and really like that produce.And lasted about14 month witch if you work out is amazing value of money. But this time around i wanted to learn down so i have started on the 20kg USA WPI. It's easier to mix and lighter in texture than the WPC but in a blender i can't tell the difference. Happy training guys.
(4)

Great Value Products

By: on 4 July 2015
The quality and quantity of these proteins are unbelievable! As a student I'm always looking for the best value products to save money, and these are so good, even if they were expensive I would still continuous with the product. Love the stuff!!!!!!!
(5)

Breakfast

By: on 30 April 2015
I love this stuff! I have it every morning for breakfast usually after my first workout for the day. I mix it with organic yoghurt, blue berries flax seed oil and ground flax seed - absolutely awesome way to start the day and get quality protein into the system - whey to go!!!
(5)

Finally!

By: on 12 April 2015
Being Lactose intolerant finding a protein powder can be a pain. I have tried many others over the years including, Pea, Soy and Egg protein all with success but always have to pay more for having an intolerance. I read that the WPI contains almost 0 lactose. I was a little dubious and emailed Professional Whey. They suggested i try a sample size first but i just went ahead and bought the 1kg thinking that if i couldn't digest it, id just give it away. Its fantastic.. no bloating, no upset stomach, no bad gas. I only have 1 scoop mixed with water post workout so maybe multiple times a day would cause more issues, but so far i am very happy. Thanks Nick
(5)

So Verstaile!

By: on 19 December 2014
This protein tastes so neutral and clean and mixes easily which is great for adding to things like porridge and pancakes and for regular shakes as well. I love the fact there are no hidden nasties. Top product at a much better price than the NZ WPI.
(5)

Fantastic product without the rubbish!

By: on 24 July 2014
So many products out there are full of rubbish ingredients and fillers that improve company profits but do nothing for us, the consumer, other than expose us to unwanted chemicals! YUCK. Profession Whey is big on quality, taste and value. I recommend this product to all of my clients. I'll use nothing else.
(5)

The best protein I've tried

By: on 17 July 2014
I'd tried a number of flavoured protein shakes which made me break out in acne. The added sugars and flavours were not doing my body any favours. So if you care about your body, I would definitely recommend the natural protein. I have a shake every morning within half an hour of waking up to get my metabolism going. It helps keep me in shape and gives me the energy I need to get to work. The flavour isn't very strong, but after a few days you start to quite enjoy it. Highly recommend this product.
(5)

Great product, great value.

By: on 9 July 2014
I have found the USA WPI natural a great product, it has a higher protein percentage than my former favourite, is easy to use in my shakes, and is giving great results. Recommended!
(5)

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