Whey Protein Isolate (WPI)
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.
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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), essential amino acids (EAAs) and glutamine 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...
- Carbohydrate powders such as Carb+
- L Glutamine to help retain muscle whilst dieting
- Creatine Monohydrate, one of the best value and researched supplements available
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 free express postage for all orders 3kgs 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.
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.
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
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.
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.
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
Whey Protein Isolate Reviews
I've lost 4kgs using this stuff as a supplement while retaining my muscle mass. If you use this with the right diet and training program it works wonders.
Nice flavour, even goes nicely with almond milk.
Great flavours - not overly sweet, mixes great, and for a great price!
Best protein I've tasted. I keep coming back to this one as it's great with water or milk. Not too sweet but still lots of flavour
I low the Raw option of this whey protein powder, I can create so many different flavours and delights!
All round great product. It mixes easily (can be done with a spoon), digests well and tastes really good. For such a good price, this product is definitely worth it.
Peppermint choc flavour - 8/10
Salted caramel - 8.5/10
Very nice tasting protein, a little bit of the protein gets stuck in your teeth though. A tiny bit gritty. But overall very good.
Tastes great ☺️
This product mixed really well, tasted great and was really cheap compared to buying from supplement stores!! Highly recommended!!