Whey Protein Isolate

Bulk Nutrients' Whey Protein Isolate (WPI) is ultra-high in protein and is certified as being sourced from grass fed, hormone free cows.

A$36.00
  • Lactose Free
  • Gluten Free Ingredients
  • Vegetarian
  • Vegan
  • Taste
  • Effectiveness
  • Value for Money

Buy in bulk and save

  • 1kg = AU$36
  • 2kg = AU$69 (AU$34.50 each)
  • 3kg = AU$97 (AU$32.33 each)
  • 4kg = AU$124 (AU$31.00 each)
  • 5kg = AU$149 (AU$29.80 each)
  • 10kg = AU$289 (AU$28.90 each)
  • 15kg = AU$425 (AU$28.33 each)
  • 20kg = AU$549 (AU$27.45 each)

About Whey Protein Isolate

Whey Protein Isolate (WPI) is considered the industry standard for dairy protein quality and is made during the cheese making process. As it’s the most highly refined version of whey protein, Whey Protein Isolate has the highest level of protein and the lowest level of fats and carbohydrates.

Containing only traces of lactose, it is easily digestible and can be enjoyed by those with sensitive stomachs. Whey Protein Isolate has high levels of branched chain amino acids and essential amino acids, with a thorough spread of conditional and non-conditional amino acids.

Highest Protein

Taken post workout

Ultra low fats & carbs

All new delicious Mocha available now!

Whey Protein Isolate (WPI) Protein Powder

Bulk Nutrients’ Whey Protein Isolate (WPI) comes from grass-fed, hormone (rbST) free cows. It is a low-temperature cross and ultra-filtered whey protein which remains completely undenatured.


Buy Whey Protein Isolate Online

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 support optimum muscle growth.

Why should you use Whey Protein Isolate (WPI)?

Bulk Nutrients’ WPI is an exceptionally pure protein source, with much of the fat and lactose normally found in Whey Protein Concentrate filtered out.

  • WPI is fast absorbing and can help build lean muscle
  • Taken post workout, WPI assists in recovery
  • WPI can help to increase protein synthesis
  • Whey Protein Isolate can help to boost the immune system
  • Bulk Nutrients WPI is low in fats and carbs, and has a neglible lactose content

A great selection of WPI flavours on offer…

Bulk Nutrients uses only the strongest sweetener available in our flavoured Whey Protein Isolate, which ensures an exceptionally pure finished product.

With flavours on offer like Chocolate Whey Protein Isolate, Vanilla WPI, Banana Whey Protein Isolate, Peppermint Slice Whey Protein Isolate, Choc Honeycomb WPI and Salted Caramel Whey Protein Isolate to name a few.

And, because we use the strongest flavours available, we only need to include them as a fraction of the overall product which ensures an exceptionally pure WPI from Bulk Nutrients.


WPI vs WPC, which is better?

WPI and WPC come from the same source, here are the benefits they both offer.

  • WPI and WPC are both rapidly absorbing proteins
  • Both WPI and WPC are great to consume after training
  • They both contain minimal fats and carbohydrates per serve
  • Both offer a great range of delicious flavours

The main difference… WPI is a more refined version of WPC and because of this offers significantly less lactose per serve.

So, if you are very sensitive to lactose and can’t live without whey, or after a higher protein hit then give WPI a go!


WPI stacks well with other supplements in shakes…

Bulk Nutrients’ WPI is great to have in a protein shake with other muscle building and performance-based supplements. We believe it is best used with…

So if you want the fastest absorbing and most bioavailable protein source, choose Bulk Nutrients WPI.


Fast shipping on Whey Protein Isolate

At Bulk Nutrients we offer $7 flat rate shipping and express postage for all orders 3.5kgs and under.

It’s a very regular occurance for Bulk Nutrients customers in captial cities to order one afternoon and have their order on their doorstep the following morning!


Bulk Nutrients’ WPI is an all round protein

Whey Protein Isolate (WPI) is an all round protein source, so it caters for everyone from endurance athletes to strength athletes.

WPI is great to aid recovery, strength and muscle levels as well as boosting the immune system.

Dosage

30 grams (approximately 1 level scoop) after training for maximum nutritional benefit, or anytime during the day for a low fat meal replacement.

Directions for Whey Protein Isolate

Combine powder with 300-400ml of water or low fat milk and consume immediately.

We suggest you check out Protein Flavour & Sweetness Tweaking for information on how best to mix WPI.

Ingredients

Cross and Ultra Filtered Whey Protein Isolate (WPI), Flavour, Sweetener (Sucralose).

  • Chocolate based flavours (Chocolate, Choc Honeycomb, Peppermint Slice) contain cocoa.
  • Raw (Unflavoured) contains zero sweeteners or flavourings.

Bulk Nutrients is proudly Australian owned and operated with all products developed, blended and packed locally in our facility in Grove, Tasmania. Find out more

Allergens

Contains Dairy, Soy Lecithin.

Soy Lecithin is added by the raw whey manufacturer to aid mixability. The inclusion rate is extremely low and will not affect those with allergies.

Storage

Keep well sealed, protect from moisture, light and heat.

Frequently asked questions about WPI

How does Whey Protein Isolate taste?

WPI is flavoured and is generally considered to have a pleasant taste.

What is made from?

Whey Protein Isolate product is a protein derived from milk.

Are samples available of this product?

Yes, you can request a free sample of Whey Protein Isolate from our Free Sample page.
Iced Coffee Samples will be available in the coming weeks.

How is it packaged?

Bulk Nutrients’ Whey Protein Isolate is packaged in resealable 1kg pouches.

Is the packaging for this product recyclable?

Yes! The bag can be recycled by placing it in the REDcycle drop off point bins. The included scoop can be recycled as a hard plastic in your local council pickup.

If you’d like more information, check this article which breaks down how Bulk’s various products’ packaging can be recycled.

Can I receive a discount buying more than one of this product at once?

Absolutely! Price breaks for Whey Protein Isolate begin when you purchase 2 units of any flavour. Just add more than that to your cart to see the savings.


Further Whey Protein Isolate reading

Whey Protein Isolate Recipes

As it’s so versatile, any recipe that uses a Bulk Nutrients protein can have it substituted for WPI.

That said, here are some of our favourite recipes using Bulk Nutrients WPI

Whey Protein Isolate Lab Testing Results

At Bulk Nutrients, we take our products’ purity very seriously.

To maintain our WPI’s consistent high quality, we send a cross section of our product range to the National Measurement Institute (NMI) which is an independent lab run by the Australian Government. This is the same organisation that does police forensic testing, ASADA drug screening and accuracy tests for multinational food manufacturers.

Here’s the results

Chocolate Based Flavours Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 472 1572
Protein (g) 26.3 87.7
Fats (g) 0.4 1.7
  (saturated) (g) 0.3 1.5
Carbohydrates (g) 0.5 1.4
  (sugars) (g) 0.3 1.0
Sodium (mg) 62 205
Vanilla Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 478 1594
Protein (g) 27.1 90.5
Fats (g) 0.3 1.1
  (saturated) (g) 0.2 0.7
Carbohydrates (g) 0.3 0.9
  (sugars) (g) 0.3 0.9
Sodium (mg) 56 185
Banana Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 476 1586
Protein (g) 26.9 89.6
Fats (g) 0.4 1.2
  (saturated) (g) 0.2 0.7
Carbohydrates (g) 0.3 1.1
  (sugars) (g) 0.3 1.0
Sodium (mg) 56 188
Cookies & Cream Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 476 1586
Protein (g) 26.9 89.6
Fats (g) 0.4 1.2
  (saturated) (g) 0.2 0.7
Carbohydrates (g) 0.3 1.1
  (sugars) (g) 0.3 1.0
Sodium (mg) 56 188
Iced Coffee Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 473 1577
Protein (g) 26.0 86.8
Fats (g) 0.3 1.1
  (saturated) (g) 0.1 0.2
Carbohydrates (g) 1.0 3.3
  (sugars) (g) 0.2 0.6
Sodium (mg) 54 181
Raw (Unflavoured) Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 482 1606
Protein (g) 27.4 91.4
Fats (g) 0.3 1.0
  (saturated) (g) 0.2 0.7
Carbohydrates (g) 0.3 0.9
  (sugars) (g) 0.3 0.9
Sodium (mg) 56 185
Salted Caramel Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 471 1570
Protein (g) 26.3 87.7
Fats (g) 0.3 1.2
  (saturated) (g) 0 0.1
Carbohydrates (g) 0.6 2.0
  (sugars) (g) 0.3 0.9
Sodium (mg) 122 406
Strawberry Nutrition Information
Servings per 1kg package: 33 Servings size: 30g
Average Quantity Per Serving Average Quantity Per 100g
Energy (kj) 476 1586
Protein (g) 26.9 89.6
Fats (g) 0.4 1.2
  (saturated) (g) 0.2 0.7
Carbohydrates (g) 0.3 1.1
  (sugars) (g) 0.3 1.0
Sodium (mg) 56 188
Typical Amino Acid Profile Avg Qty Per Serve Avg Qty Per 100g
Alanine (mg) 1379 4597
Arginine (mg) 726 2420
Aspartic Acid (mg) 3023 10077
Cysteine (mg) 967 3223
Glutamic Acid (mg) 4257 14190
Glycine (mg) 435 1450
Histidine (mg) 484 1613
Isoleucine (mg) 1524 5080
Leucine (mg) 3459 11530
Lysine (mg) 2709 9030
Methionine (mg) 580 1933
Phenylalanine (mg) 919 3063
Proline (mg) 1088 3627
Serine (mg) 1088 3627
Threonine (mg) 1282 4273
Tryptophan (mg) 580 1933
Tyrosine (mg) 1016 3387
Valine (mg) 1354 4513

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.

Whey Protein Isolate Reviews

Whey protein isolate

Posted by Monika on November 27, 2019

Love this product – i have Mocha, salted caremel, peppermint, vanilla – all lovely!

Absolutely worth every cent

Posted by SK on November 14, 2019

The best WPI I’ve purchased, both in terms of muscle repair and taste. The service by BN is great as always.

WPI chocolate

Posted by Haz on November 8, 2019

Great mix ability, very fine. Great flavour

Taste, directions, packaging and delivery

Posted by Paul T on November 4, 2019

Taste great with milk, however, not so great with water. Chocolate packaging was used with my 2x RAW WPI order, the CHOCOLATE print in front was replaced with a sticker, but the back labels were not. Delivery was fast!

Flavour

Posted by Cheyenne Watkins on September 30, 2019

Really delicious flavour! Blends so well with a banana and by itself

Great range of flavours WPI

Posted by Darren on September 28, 2019

Have tried 4 different flavours so far and have not been disappointed. They taste great and mix well without going lumpy.

Whey Protein Isolate

Posted by Sallyann Williams on September 28, 2019

I have used the Vanilla one for two years and adding a frozen banana makes a wonderful very delicious smoothie.

WPI

Posted by Antoinette Khoury on September 26, 2019

I have been using this product for over two years,it is the best protein powder on the market.
Its gentle and doesn’t leave an after taste like most I have tried.
Keep up the good work Bulk Nutrition your the best.

Good product at a great price

Posted by TMRB on September 20, 2019

I switched to Bulk Nutrients WPI from ON Gold Standard due to Bulk Nutrients having a cleaner ingredient list and a better price.

The protein itself mixes really well and sits nicely in the stomach.

I bought the vanilla flavour and had high expectations after reading other reviews about how good the flavours are. Unfortunately I’m a bit disappointed with it. The vanilla is subtle and there’s a strong stevia flavour – it almost tastes like a weird cotton candy. It doesn’t hold up against the flavour of the vanilla ON Gold Standard.

Overall I really like the product for its clean ingredient list and great price. To give it five stars I’ll need to try and find a better flavour.

Whey protein isolate iced coffee

Posted by Stuart on September 19, 2019

Was ok not what I had expected.

Wpi

Posted by TODD ODEA on September 18, 2019

The new iced coffee wpi tastes awesome . Mix it with fit yoghurt for a awesome guilt free treat .

WPI

Posted by Natalie on September 16, 2019

Great product great flavour great value