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First-class Protein
Blended with New Zealand grass-fed whey protein isolate, natural flavourings and without unnecessary fillers, True's premium Whey Protein Isolate is your first choice for lean muscle development and weight management. Savour the clean taste, pure quality and high protein content that makes it easy to digest in shakes, smoothies or as a protein boost in recipes.
Leading Manufacturing Processes
Our whey protein isolate is manufactured using a combination of both cross-flow microfiltration (MF) and ultrafiltration (UF) to provide an extremely pure and refined protein powder.
Less Than 1% Carbs & Sugar
The carbohydrates and lactose that are present in whey protein concentrate are removed when making whey protein isolate, making it one of the purest proteins in our range.
High in Protein
Whey protein isolate has one of the highest protein contents of any known substance to man. In its natural form, WPI boasts over 90% protein content, making it ideal for supporting lean muscle growth and post-workout recovery.
Fast-digesting
The bioavailability of whey protein isolate means it is quickly digested by the body to provide essential amino acids for fuel or recovery.
New Zealand-sourced Whey
Not all protein powders are made equally, New Zealand proteins are considered the best in the world due to industry-leading livestock processes and strict government regulations.
Rich Amino Acid Profile
Whey protein isolate contains a complete amino acid profile ideal for supporting muscles and providing vital nutrition to the body.
Achieve Your Goals
Muscle Gain & Performance
Ensuring your body receives a regular supply of protein is essential for supporting lean muscle growth. Protein consists of amino acids which are the building blocks of muscle and allow us to build, repair and maintain muscle tissue.
Building muscle mass essentially involves the process of lifting heavier weights, tearing the muscle fibres and then rebuilding them stronger and bigger and this is where regular protein intake comes in. Current research indicates roughly 2.2g of protein per kg of body weight is required for building muscle. For an 80kg male this equates to 176g/day which equates to roughly 30g-40g per meal spread over 5 meals.
Protein can be attained from a wide range of wholefood sources such as fish, chicken, and beef as well as non-animal sources such as quinoa, green peas and nuts. Protein can also be attained in supplement form, most commonly in powders such as whey protein powder, pea protein powder or rice protein powder. These powders allow for a convenient way to add additional protein calories into your daily diet and assist with muscle building needs.
- Faster Recovery
- Energy Boost
- Muscle Growth
Weight Loss & Toning
The lowest calorie way to consume protein is in a protein shake. Products such as Whey Protein Isolate have extremely low levels of carbs and fats, meaning the calories you consume are virtually pure protein. If you’re looking to minimise your caloric intake and burn any excess fat, a high protein diet is a must. Not only will a high protein diet ensure your body draws its energy from excess fat stores, it’ll also make sure you don’t feel hungry and crave unplanned cheat meals.
Nevertheless, we wouldn’t advise you rely on protein powder as your only source of protein. Rather it should be used to supplement a well-rounded diet.
- Supports weight management
- Low Carb Shake
- Ideal for high protein diets
Reviews + Questions
- Reviews
- Questions
- protein
- taste
- flavour
- water
- smoothies
- milk
- vanilla
- texture
- stomach
- chocolate

Good quality and price, great tasting and good nutritional content.

Love it
Tasty, effective and keeps me full for ages! I always use True Protein WPI after my breakfast which keeps me going for hours before my next meal. Also, the WPI has helped me gain and maintain muscle. Very happy with it

Salted Vanilla - great!
Great flavour, mixes well. The French Vanilla flavour can be a little too sweet sometimes, so the Salted Vanilla flavour is perfect for me.

WPI 90
Love WPI 90. Goes perfectly in my smoothie every morning. Mixes well to a smooth consistency. Banana & Honey flavour yum!

Tastes great!
FAQs
What is whey protein powder?
What is the difference between True’s Whey Protein Isolate (WPI90) and Whey Protein Concentrate (WPC80)?
Why do I need protein powder?
How is WPI90 flavoured?
What are the benefits of WPI90?
- 25g protein per 30g serving
- WPI boasts over 90% protein content, making it ideal for supporting lean muscle growth and post-workout recovery
- True only use the best quality raw ingredients, including New Zealand-produced whey, sourced from around the world
- A smooth, truly delicious taste
- Possesses at least 90% protein content
- Total honesty policy with completely transparent ingredient lists and full disclosure of nutritional information
- All supplements feature non-GMO and certified organic ingredients wherever possible
- Full range of products designed with health and performance in mind
- A complete amino acid profile containing all nine essential amino acids
- Only trace amounts of lactose, entirely gluten-free and with no added sugar, making WPI90 suitable for sensitive stomachs
- Suitable for vegetarians
- Available in 12 mouth-watering flavours
- WPI90 has one of the highest protein contents of any known substance
- Only trace fat, lactose and carbohydrate, perfectly suited for lean muscle gain or weight loss.
How many protein shakes should I have per day?
To determine how many protein shakes you should ideally consume, you first need to assess your individual requirements and how much protein you are currently getting from whole food sources such as meat, fish, dairy, nuts and so on. One protein shake per day is usually adequate, or up to three servings per day as required.
(1) Noakes, M, (2018) Protein Balance: New Concepts for Protein in Weight Management; CSIRO, Australia.
(2) Jäger R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition Position Stand: protein and exercise. Journal of the International Society of Sports Nutrition. 2017;14:20. doi:10.1186/s12970-017-0177-8.
When should I take my protein powder?
Can I take protein powder when pregnant or breastfeeding?
Currently, there is no strong evidence discouraging the use of moderate whey protein supplementation during pregnancy and lactation. The amount of protein that constitutes moderate supplementation will differ between individuals depending on their pre-pregnancy nutritional status, body weight and dietary intake.
Much of the confusion regarding protein powders relates to the added ingredients such as artificial flavours, sweeteners and preservatives as well as the risk of contamination of banned substances or heavy metals during the processing of these powders. Trusting your brand as well as reading and interpreting the nutrition label is essential in understanding the ingredients within the product.
Please see here for more information https://www.trueprotein.com.au/pregnancy-and-supplements
Can I use protein shakes as a meal replacement?
Can I drink WPI90 if I’m lactose-intolerant?
Will taking WPI90 help me lose weight?
Can children and/or teenagers take protein powder supplements?
Some adolescents are highly active or competitive athletes and may be keen to use sports supplements. However, adolescent athletes will see greater performance enhancements by following a well-designed training program with a balanced nutrition regimen that supports their training demands as well as natural growth development and maturation. Proper nutrition and training principles form the foundations for any successful athlete, so address any issue here first. True WPI90 can then be incorporated into an adolescent athlete’s diet if their parents, coach and appropriate medical professional has approved and recommended it.
Why have you chosen New Zealand-sourced whey for your protein powders?
Can I cook with WPI90?
Can I add WPI to hot drinks or warm oats?
Suggested Use

Add 1 Large TP Scoop or 4 metric Tbsp's (30g) to 150ml-200ml of liquid of your choice. Shake and consume. Consume 1-3 servings daily or as required.
True Protein recommends as a guideline 1.5g to 2g of protein per kilogram of bodyweight. This recommendation is based on the assumption that your goals are to build lean muscle and enhance recovery. This translates to an 80kg person taking roughly 120g to 160g of protein per day. We recommend that you fulfil this quota through a combination of wholefoods and protein supplementation.
Features
Nutritionals
Ingredients:
Ingredients | Whey protein isolate (95%)(Milk), Organic inulin, Natural flavours, Emulsifier (Sunflower lecithin), Banana powder (0.5%), Manuka honey powder (0.5%), Vegetable gum, Natural sweetener (Organic steviol glycosides). | |||
Allergens | Contains milk. Produced in a facility that handles nuts. |
Nutritional Information:
BANANA & HONEY | PER 30G SERVE | PER 100G |
Energy | 459kJ (110Cal) | 1530kJ (366Cal) |
Protein | 25g | 85g |
Fat, total | 0.3g | 1.0g |
- Saturated | 0.2g | 1.0g |
Carbohydrates | 0.9g | 3.0g |
- Sugars | 0.6g | 1.9g |
Dietary fibre | 0.7g | 2.5g |
Sodium | 39mg | 129mg |
Calcium | 121mg | 404mg |
Lactose | 0.3g | 1.1g |
Gluten | nil detected | nil detected |
Amino Acid Profile:
Amino Acids - Banana & Honey | 30g Serve | Per 100g |
Essential | ||
Isoleucine | 1.8g | 6.1g |
Leucine | 2.9g | 9.6g |
Lysine | 2.6g | 8.7g |
Methionine | 0.6g | 2.0g |
Phenylalanine | 0.8g | 2.8g |
Threonine | 1.9g | 6.3g |
Tryptophan | 0.5g | 1.6g |
Valine | 1.6g | 5.4g |
Non-essential | ||
Histidine | 0.5g | 1.5g |
Alanine | 1.4g | 4.7g |
Arginine | 0.6g | 2.0g |
Aspartic Acid | 2.9g | 9.6g |
Cysteine | 0.7g | 2.5g |
Glutamic Acid | 4.8g | 16.1g |
Glycine | 0.5g | 1.6g |
Proline | 1.6g | 5.4g |
Serine | 1.3g | 4.3g |
Tyrosine | 0.9g | 2.9g |