After Exercise

Because WPI is the fastest digesting whey protein, it will offer the best recovery after intensive exercise. WPI shuttles amino acids into your bloodstream faster to allow for maximum repair and growth.

Weight Management

Since our WPI has such low calories, fats and carbohydrates, but very high protein it is ideal for anyone who is wanting to lose weight.

Snack Replacement

Our WPI is an ideal healthy snack since it is so low in calories but so high in nutrients that are key for muscle tissue support.

Male & Female

Whey protein isolate is perfect for any person wanting the highest quality protein source, with the highest protein percentage and the fastest digestion.


Whey protein isolate is a byproduct of cheese manufacturing, and it is the liquid that is left over after the milk has been processed. WPI consists of approximately 90% protein, with almost zero carbohydrates and fats. WPI also has almost no lactose (99% lactose-free), this is why those who have sensitivities to lactose often choose WPI as their protein source. WPI has a full amino acid profile, making it one of the best protein sources on the planet.


  • Because we source our WPI from the finest New Zealand Grass Fed hormone free cattle, you can expect results from our Whey Isolate that reflect the scientific findings which promote muscle growth and rapid muscle repair.
  • Because of our Whey Isolate’s superior quality and rigorous lab testing, you can expect to receive a complete amino acid profile supporting you to fulfil your full human potential.
  • Our Whey Isolate goes through an ultra-filtration process ensuring the protein is left in its most natural form, leaving a high protein percentage with minimal fats and carbohydrates.
  • Due to its high protein percentage, low fat and low carbs, WPI is highly effective as a muscle recovery shake after intensive exercise.


WPI is Ideal for weight loss

Since WPI consists of almost zero fats and carbohydrates but has the highest protein percentage of any protein source, it is an ideal supplement to support a low carbohydrate diet, allowing for lower calorie intake, forcing your body to use your fat stores for energy. WPI works especially well and a healthy snack since it contains such low calories but taste delicious and sweet, helping you to combat those cravings.

WPI is Ideal for muscle gain

Because VPA WPI is naturally extremely high in amino acids, specifically BCAA’s, WPI is extremely effective at repairing building lean muscle directly after training, optimising your recovery window. WPI is also one of the most bioavailable protein sources available, so you can be assured that you are going to absorb most of the protein in your shake, as opposed to many other forms of protein which your body can not absorb very well. Consuming WPI throughout your day will also allow you to hit your daily protein consumption required for muscle growth.

Great for sports performance

As all athlete are aware, it is crucial to feed your body quality protein directly after intensive training and competitive events to allow your body to repair for the next day of training and to grow stronger and improve. For this reason, WPI, the fastest digesting whey protein source, is the perfect post-workout protein drink to ensure your body recovers quickly so you can continue to improve as an athlete.



  • One of the fastest digesting proteins available, ensuring full muscle saturation instantly.
  • 26g of high-quality protein per serve*
  • Only 0.3g of fat per serve *
  • 7.8g of BCAA’s proven to help build lean muscle and aid in recovery*
  • 4.2g of Leucine to support the activation of Muscle Protein Synthesis*
  • High absorption rate compared to other protein sources
  • Flavour Happiness Guarantee
    *based on flavoured nutritional info


Because of the purity of our New Zealand Grass-Fed Whey Protein Isolate, it is naturally rich in both essential amino acids and non-essential amino acids. Each 30g serve of our WPI contains 7.8g of BCAA’s, the most important of the essential amino acids for muscle repair and building.




Our stringent process of flavour perfection means that ALL our flavours are created based directly on VPA customer preferences, so you are receiving the ideal flavours for your taste buds. We are so confident in the flavours that we release into our VPA range, that we are willing to be the only supplement company to off a full FLAVOUR HAPPINESS GUARANTEE. If you do not like the flavour you purchased for any reason, we will send you another flavour of your choice for FREE.

Can anyone use VPA WPI?

Yes, VPA WPI is safe for anyone to consume, unless you have severely sensitive dairy allergies. But WPI is 99% lactose free.

We also recommend that for any dietary change you consult your doctor.


When should I take WPI?

Although WPI can technically be consumed at any time, it is most effective after training because of its extremely fast digestion speed, allowing you to get faster muscle repair and growth. WPI is also great to consume through the day as a snack or when you need to supply your body with additional protein, such as the day after a big workout.

What makes your WPI better than other protein powders?

We’re Australian owned and operated, and only use the highest quality WPI from Australian grass-fed cattle. To find out why we insist on using Australian Whey please read this informative article on the Difference Between Australian and US Whey Protein Quality. We’re lab tested by an independent company to ensure our protein powders and ingredient profiles are as good as we promise them to be. We are one of very few supplement companies that do this and publish our results on our website (see ‘Lab Testing’ tab on this page). With reputable high-level athletes and ambassadors on our VPA team who use our WPI daily, you can rest easy knowing you have the best quality WPI the Australian market can offer. We’ve designed our supply chain to include Australian products and ingredients, and our warehouse structure to sustainably get our products to you quickly with a reduced carbon footprintBest flavour guarantee – we believe protein powder should have the best BCAA profile possible and taste amazing at the same time. So, if you don’t love it, just return it.

Technical Discussion

Whey protein isolate (WPI) is extremely popular amongst athletes due to its ability to be digested very rapidly and beneficial in improving muscle recovery and protein synthesis. Due to the WPI method of filtration, whey isolates tend to be less allergenic than concentrates and other bovine milk or dairy products. WPI typically contains approximately 85-90 percent protein, much higher than whey proteins concentrates (WPC), as well as lower in lactose, carbohydrates and fats compared to WPC. For this reason, many individuals choose WPI over WPC so as to increase lean muscle mass and to effectively enhance muscle recovery. Furthermore, due to the very low content of lactose in WPI, it is highly suitable for individuals who are lactose intolerant. 

Manufacturing of Whey Protein Isolate

Similar to the manufacturing of Whey Protein Concentrate (WPC), Whey Protein Isolate (WPI) manufacturing process starts with pasteurised skim milk and held over night. The liquid whey (from the cheese making process) is then drained through a stainless steel screen. Whey liquid is then filtered. The liquid is filtered to one-fifth its original volume, resulting in whey concentrate that is approximately 80% protein, commonly known as WPC. 

In the production of WPI, the whey concentrates are further micro-filtered to increase protein concentration to as high as 90%. The final WPI is then spray-dried to achieve whey protein powder. VPA Australia WPI is processed via proprietary ultra-filtration techniques, generating un-denatured and highest quality soluble whey proteins. 


Health Benefits of VPA Australia Whey Protein Isolate 


Grass fed cattle from NZ

This product is regarded as the best whey protein product anywhere on the planet. Free from bovine growth serum  (legal in other parts of the world). 

No Fillers

We pride ourselves for only selling 100% pure products. You can be guaranteed that our WPI is pure WPI with a small amount of flavouring and sweetener. 

Low temperature processing 

Ensures retention of both nutritional and functional properties.

Naturally high in the three essential amino acids (leucine, iso-leucine and valine) 

Compared to other protein sources, with leucine being recognised as the trigger for muscle protein synthesis. 


Health Benefits of Whey Protein Isolate in general

Suitable for lactose intolerant individuals

WPI is very low in lactose.

Increase lean muscle mass

WPI is low in carbohydrates and fats along with high protein and amino acid content excellent in enhancing lean muscle mass. 

Reduce Muscle Loss & enhance recovery

Many years of research have shown supplementing milk proteins particularly, Whey Proteins, can reduce muscle loss due to the high content of L-Gluatamine (Walzem et al, 2002). Furthermore, the high content of L-Glutamine can also restore energy efficiently after an intense workout, thus improving recovery. 

Increase strength & muscle growth

Boire et al demonstrated that men engaged in resistance training programs while supplementing with whey proteins showed greater improvements in strength than men using resistance training alone. This is mainly due to the high Branched Chain Amino Acid (BCAA) content in whey protein. It has been found that the quality of a particular protein for enhancing muscle mass and strength is related to its Leucine content. 

Enhance protein synthesis

Whey proteins can contain up to 26% BCAA, which are efficient substances for synthesizing new proteins where BCAA Leucine acts as a signalling molecule for initiation of protein synthesis. 

Increase bioavailability of essential amino acids

Research found that the amino acid profile in individuals’ dietary proteins influences their nitrogen utilisation. This means poor quality dietary protein intake have been shown to increase nitrogen losses and limit protein synthesis, therefore ingestion of whey proteins containing high essential amino acids can reduce nitrogen losses (Boire et al, 1997). 


Walzem RL, Dillard CJ, German JB. Whey Components: millennia of evolution create functionalities for mammalian nutrition: what we know and what we may be overlooking. Crit Rev Food Sci Nutr 2002: 42: 353-375. 

Anthony JC, Anthony TG, Kimball SR, Jefferson LS. Signalling pathways involved in translational control of protein synthesis in skeletal muscle by leucine. J Nutr 2001; 131: 856S-860S. 

Bos C, Gaudichon C, Tome D. Nutritional and physiological criteria in the assessment of milk protein quality for humans. J AM Coll Nutr 2000; 19: 191S-205S. 

Kimball SR, Jefferson LS. Control of protein synthesis by amino acid availability. Curr Opin Clin Nutr Metab Care 2002; 5: 63-67. 

Tome D, Bos C. Dietary protein and nitrogen utilization. J Nutr 2000: 130: 1868S-1873S. 

Millward DJ, Pacy PJ. Postprandial protein utilization and protein quality assessment in man. Clin Sci (Lond) 1995; 88: 597-606. 

Boirie Y, Dangin M, Gachon P, Vasson MP, Maubois JL, Beaufre B. Slow and fast dietary proteins differently modulate postprandial protein accretion. PNAS: Proceedings of the National Academy of Sciences of the U.SA 1997; 94: 14,930-14,935. 




Per Serve

Per 100g

Energy (kJ)



Energy (Cal)



Proteins (g)



Total Fat (g)



Saturated Fat (g)



Total Carbohydrate (g)



Sugar (g)



Sodium (mg)



Typical Amino Acid Profile


In 100g of protein

Lysine (mg)



Alanine (mg)



Glutamic Acid (mg)



Glycine (mg)



Histidine (mg)



Isoleucine (mg)



Leucine (mg)



Methionine (mg)



Phenylalaine (mg)



Proline (mg)



Cysteine/cystine (mg)



Tryptophan (mg)



Valine (mg)



Tyrosine (mg)



Arginine (mg)



Threonine (mg)



Serine (mg)



Aspartic Acid (mg)



Note: Nutritional information may vary depending on flavour.


Add 1 heaped scoop to 200-250ml of chilled water. Stir or shake for 20 seconds or until completely dispersed.


  • Heavy training – two shakes per day, with three shakes on training days.
  • Light Training – one shake per day, with two shakes on training days. 
  • Weight Control – one shake per day to replace snack items   

Serving size: 30 grams 


Grass fed Whey Protein Isolate, Flavour, Cocoa*, Sucralose, Natural Colour**.

*Cocoa is included in chocolate and caramel based flavours.

*Yellow contains beta-carotene, Red contains Anthocyanins.

Coffee flavours CONTAIN CAFFEINE equivalent to approximately 20mg per serve.

NOTE: Nutritional information may vary depending on flavour.


Contains ingredients from milk and and less than 1% soy lecithin (as instantiser).