Grass Fed Whey Protein Chocolate 5kg (166 servings)


Product Description
If you love chocolate and you love protein, then let the gains begin with a 2-3 month supply of delicious, natural chocolate flavour whey protein. It's fast digesting,  lightly flavoured- so the taste will never overpower you, and naturally sweetened- with no added sugar. Crush your cravings with 166 servings in our reusable 5kg tubs.

Why Is Mirrabooka Grass Fed Whey Protein The Best Protein?

It's what we put in and what we leave out that makes Mirrabooka Protein the best.
Mirrabooka Protein is pure, premium quality, single origin, 100% Australian grass fed whey protein. This is not a blend of lower quality proteins. Mirrabooka is pure and clean- it does not contain any filler ingredients or artificial additives. Just the cleanest, purest grass fed Australian Whey Protein.
  • All natural, no artificial additives 
  • Single origin grass fed Australian whey protein- not a blend of lower quality proteins
  • No filler ingredients- means more protein per serving, not cheap filler ingredients
  • Naturally flavoured -  sweetened 

Why Is Mirrabooka The Best Tasting Protein Powder?

Our natural whey protein is deliciously smooth and creamy, and it mixes well in water.
  • Dissolves and mixes well -  shake it up with water
  • Smooth texture - not grainy or gritty, no powdery residue
  • Naturally creamy and slightly sweet - not bland and tasteless
  • Lightly flavoured and sweetened- not unpalatable

The Best Protein For Women

Getting enough dietary protein is essential for women's health. You need the most bio-available, fast digesting, low carb, clean ingredient, natural protein powder that tastes great so you can drink it at any time of day.
  • Promotes satiety- keeps you feeling fuller for longer between meals
  • Assists with weight loss- consuming higher levels of protein can assist you reducing total calories
  • Maintains lean muscle- fuels and maintains your lean muscle mass
  • Gluten free and low carb 

Why Is Mirrabooka Whey Protein The Best Protein For Men?

You need a fast digesting, great tasting, pure, clean and natural, complete protein to ensure you meet your daily protein intake requirements, to develop lean muscle, recover from sport and exercise, and maintain your immune system. You don't want filler ingredients and slow-release, low quality protein sources.
  • Complete protein - naturally contains all 9 essential amino acids needed for optimal health.
  • Naturally high in BCAAs - contains 4.5g of Branched Chain Amino Acids leucine, isoleucine, and valine which switch on your body's muscle building process
  • Fast digesting and bio-available protein - you absorb the protein quickly when you need it (pre and post exercise) and get maximum nutrition from each serving

Single Origin Whey Protein

Whey protein blends contain a mixture of lower quality protein sources to reduce production costs. Protein origin matters because climate, farming practices, processing and other factors affect the quality, taste and bio-availability of the final product. 
Mirrabooka Protein is made from a single source of premium Australian whey protein concentrate. What makes Australian dairy so good? It comes from Australia's South East region- predominantly Victoria, South Australia and Tasmania. This region has the ideal climate for year round pasture grazing, adequate sunshine and rainfall, good soil and pasture growth and excellent animal health. This results in less need for fertilisers and feed crops, and year round supply of grass fed cows milk, so you get the purest and best quality protein in every serving.

Ultrafiltered Whey Protein Concentrate

Ultrafiltered whey protein concentrate has undergone the least and most gentle processing of any whey protein, preserving a broader range of nutritional benefits (assisting lean muscle growth, weight loss and supporting your immune system), bio-availability and maintaining better taste than whey protein isolate.
Our ultrafiltered whey protein concentrate is Australian made from farm to packaging 
(cocoa, vanilla and stevia are not grown in Australia and must be imported).

Undenatured Whey Protein

Carefully sourced, processed and handled to prevent the protein and fragile protein fractions breaking down during processing and handling (denaturing). This preserves the protein structure and bio-availability, so that the beneficial macro and micro nutrients are broken down and absorbed in your digestive system.

Cold Processed Whey Protein

Whey protein is susceptible to damage from heat during the the entire process from farm to packaging. Mirrabooka Protein is low temperature processed and not exposed to prolonged high temperatures that damage the micro and macro nutrients, during the the entire process from farm to packaging. This preserves the nutritional quality and bio-availability.

No Artificial Additives

Many off the shelf protein powders contain a long list of artificial ingredients including synthesised vitamins, artificial flavours and artificial sweeteners (Sucralose). Artificial additives are highly potent and cheap to use- however they are not recognised by the human body as food, and may lead to long term weight gain, health problems and disease.
Mirrabooka Protein only contains the minimum number of necessary ingredients from natural sources. 

No Filler Ingredients

Mirrabooka Protein does not contain any filler ingredients such as maltodextrin, milk powder, skim milk powder, coconut flour, psyllium, sugar or fibre (inulin etc). 
These ingredients are used in many highly processed protein powders to bulk the product, reduce production costs and sweeten the product - at the expense of your health and nutrition. The protein content of those products is typically very low. 

Easy To Open 5kg Tubs

Shipping & Returns


Mirrabooka Protein ships with Australia Post- Australia's largest delivery provider.

We provide free standard shipping (Parcel Post) on all orders.

If you require faster delivery, please select the Express Post shipping method at the checkout. Please note Express Post does not guarantee 'next day' delivery.

Australia post tracking is provided for all shipments.

Please see the below chart for shipping costs as well as estimated delivery times.

Delivery Method Delivery Time Price
Standard Shipping (Parcel Post) 2-14 business days Free
Express Post 1kg total 1-7 business days $5.00
Express Post 2-2.5kg total 1-7 business days $10.00
Express Post 3-5kg total 1-7 business days $15.00
Express Post 6-10kg total 1-7 business days $25.00
Express Post 11-19kg total 1-7 business days $40.00
Express Post 20-25kg total 1-7 business days $50.00


Mirrabooka Protein maintains ownership and responsibility of shipments up until the moment the shipment has been delivered to the address you, the customer, provided on the original order, when all of the following conditions are satisfied:

  • You must provide a correct, complete, current postal address as deemed acceptable by Australia Post. 
  • You must not change the address once the order has been shipped.
  • You, or someone at the address provided must be available to receive delivery.

Once the item has been delivered successfully by Australia Post to the address provided the ownership and responsibility for the product(s) transfers to you, the customer.

Mirrabooka Protein is not responsible for lost or stolen items once delivery has been successfully completed. If you think you have a lost or stolen delivery, please contact Australia Post.


Australia Post provides a direct link to track your order on their website.

Mirrabooka Protein emails you this link in your shipment notification email, titled "shipment from order # is on the way".

To track your order, click the link provided in this email.

Mirrabooka Protein does not have any additional tracking information.

Australia Post will also provide you with text message and email updates regarding your delivery.

It is your responsibility to provide a correct email address and mobile phone number so that you can be informed of the progress of your delivery.

It is your responsibility to check your emails and text messages to ensure you are available to receive delivery.


For multiple item orders, we may ship your items separately.

In this case you will receive separate shipping notification emails for each separate shipment.

Each email contains the unique link to track one shipment.

It is common for separate shipments to ship on the same day and be delivered on different days.

If you receive a part shipment of your order (an incomplete shipment), please check the packing slip provided with the delivery. The packing slip will show only the product(s) in that shipment.

If there are items from your order missing from the packing slip (and from the delivery), you will be receiving separate shipments.

To track the remainder of your order, please check your email inbox for multiple shipment notification emails, and click the tracking links provided.

Mirrabooka Protein does not have any additional tracking information.


The delivery timeframes listed above are an estimate provided by Australia Post, not a guarantee.

Mirrabooka Protein can not provide guaranteed delivery dates.

If you require faster than normal delivery, please select the Express Post shipping method at the checkout. Please note Express Post does not guarantee 'next day' delivery.

To track your delivery, please click the link provided in your shipment notification email.

This link will take you to the Australia Post tracking information page exclusively for your shipment.

Australia Post provides all the available information on your shipment on this page, including an expected delivery time frame.

Mirrabooka Protein does not have any additional tracking information.

If your shipment is late, or your are worried it has gone missing, or tracking information on the Australia Post page has not updated in several days; you may lodge a customer enquiry with Australia Post.

This is the first step that can be taken to get more information and often results in tracking being updated and the order being delivered shortly after.

Mirrabooka Protein does not have any additional tracking information.

If your tracking has not updated or your shipment has not been delivered 48 hours after you have lodged a customer enquiry with Australia Post, then you may contact Mirrabooka Protein by email.

We will assess the situation and may decide to send a replacement shipment at our discretion.


Australia Post has a computer database with precise address information for every address in the Australia Post network.

If you provide an incorrect or incomplete address that does not match the Australia Post database address, Australia Post drivers may refuse to attempt to deliver the shipment.

It is your responsibility to provide the correct delivery address at the time of placing your order.

Australia Post will not accept special delivery instructions such as "leave next to the front door" or "deliver to the rear of the house".

Please ensure you provide the correct suburb. For example, if you live in Manly, do not enter the suburb as 'Sydney'.

Mirrabooka Protein is not responsible for correcting your provided delivery address.

If you have not received your delivery, please click the link provided in your shipment notification email.

If Australia Post is unable to deliver your shipment due to incorrect or incomplete address, they may return your shipment to the nearest Local Post Office for you to pick up. Australia Post do not redeliver.

In the event a shipment is awaiting collection at a local post office, it is the customers responsibility to pick it up.


You may change your address before your order has been shipped.

Once you receive your shipping notification email, your address can no longer be changed by Mirrabooka Protein.

You may contact Australia Post to redirect a shipment (change of address).

Once you contact Australia Post to redirect a shipment (change of address) the item is considered 'delivered in full' by Mirrabooka Protein.

Mirrabooka Protein is responsible for safe delivery of your order to your original delivery address.

Ownership, responsibility and any further shipping charges transfer to you, the customer, when you redirect a shipment with Australia Post.


To read the Mirrabooka Protein Refunds and Returns policy please click here.

Mirrabooka Protein reserves the right to update this Shipping Policy at any time.


Mirrabooka Protein may accept returns of product purchased directly from through the Site only when all of the following conditions are satisfied:

  • The return request must be made to Mirrabooka Protein within 48 hours of Australia Post delivery time; no returns will be accepted after this time period. 
  • You must return the product in "new" condition; the same resalable and unopened condition as it was purchased.
  • The product was purchased through and you provide a valid customer order number.
  • Under no circumstances will a return be accepted if the tamper evident seal has been broken. You must not break the tamper evident seal.

If you need to make a return, please email us with your return request to before sending the product back. Please state your name, phone number, order number, the reason for the request and if the product is in "new" condition. You will receive a response to your request within 2 business days.

Returns must be shipped back to our warehouse within 2 days of receiving approval. If you do not return the item within this time the return authorisation may be cancelled. You are responsible for all costs of shipping the item back to us, and if we approve your return request, you will receive a credit only on the product costs. All shipping costs are non-refundable.

Items must be returned in “new” condition: This includes all original, unopened, unmarked and undamaged packaging. Under no circumstances will a return be accepted if the tamper evident seal has been broken. You must not break the tamper evident seal. Missing and damaged items will not be accepted. Whilst we understand that you can change your mind and return your unwanted products, we must be able to resell your item as brand new. This is a fair and reasonable policy.

Returned items conditions:

All returned items will be inspected by our warehouse team.

Mirrabooka Protein has the right to refuse returned goods if any of the items are not in new condition (see above term). Items where the tamper evident seal has been broken will be refused.

If a product is deemed unfit for return, Mirrabooka Protein will notify the customer the return has been rejected. The customer then has the following options:

  • We can ship the item/s back at your own cost; or
  • We recycle the item/s. By recycle, we mean dispose of.

You have 7 days to notify Mirrabooka Protein about your preferred option. If we do not receive a response within this period your item will be disposed of.

Any reimbursements will be made to the payment method used for the original purchase. Please allow up to 10 days for completion of this process.


Despite every effort to safely ship and deliver your order, we understand that on rare occasions products can be damaged in transit. If your order was damaged in delivery, please contact us immediately by email at and we will assist you.

Please send photos of the damaged product in the condition you received it.

Do not open the damaged product. Under no circumstances will a return be accepted if the tamper evident seal has been broken. You must not break the tamper evident seal.

If you receive a jar that has been damaged in transit, and you open the tamper evident seal, we can not provide a replacement.


It is your responsibility to provide a delivery address where your order can be delivered safely and successfully to you by Australia Post.

Australia Post provides updates and notifications about the stage and timing of your delivery by both email and text message.

It is your responsibility for tracking your delivery by the email and text notifications provided by Australia Post. When placing your order you have the option to provide both a valid email address and mobile phone number so that you will receive tracking notifications and updates from Australia Post. 

Mirrabooka Protein is not responsible for lost or stolen product once Australia Post has delivered it to your delivery address. 

We do not provide refunds for lost or stolen items once they have been successfully delivered by Australia Post.


As a consumer, you are entitled to the benefit of statutory consumer guarantees in respect of items or services purchased from Mirrabooka Protein. If you believe an item is faulty, not of acceptable quality, or does not match the description provided, you may be entitled to a remedy under the Australian or New Zealand Consumer Law. However these consumer guarantees do not apply where the item was damaged due to abnormal use or misuse.

Mirrabooka Protein reserves the right to update this Returns Policy at any time.


Customer Reviews

Based on 649 reviews
Krystal B. (Melbourne, VIC)
Words cannot describe my gratitude

I have been searching high and low for a clean, no crap added protein powder for a few years now, cannot believe it has taken this long to find.
I love the fact that there are no gross tasting sweeteners, that I get to choose what vitamins I would like to add either through food or supplements and judge it on how I am feeling on the day.
The product doesn’t affect my IBS which I must say is a huge relief and my gastritis is also not affected, other products would make me feel ill with all the stuff they add to them.
The flavour is incredibly neutral, so making savoury or sweet is not a problem, your only limit is your imagination.
I have been consistently having a protein shake everyday since buying it and I would usually only have 1 or 2 a week because I used to hate the flavour and texture of other brands, not any more.
Thank you for creating this product Jeff and team, I am incredibly grateful as I feel like I got a piece of my life back, with being a busy mum and not wanting to eat in the morning, I now have a nutritious and delicious protein shake every morning to get my day going and I feel amazing for it. Thank you

Parth G. (Sydney, NSW)
Great product

I was using whey protein brand that had artificial flavours, thickeners and gum in it and often used to feel bloated.

Started using Mirrabooka unflavored whey protein, and I don't feel bloated at all and it mixes well.
It will be great if they can mention the numbers in percentage of whey protein and soya lecithin if used any .

Will definitely buy other one and highly recommend for anyone who wants to ditch the artificial flavours and want pure Whey protein powder

Adil A. (Sydney, NSW)
Support yourself and a good company

I like to consume the vanilla whey. I mix it with berries or a banana and honey to make it a smoothie. It tastes great! You can get protein anywhere and with online shopping it’s super easy! There are many choices but why I choose mirrabooka is I really liked their story as a company, their morals, ethics and values I was really drawn to and wanted to support people with that passion for a fair product that is the least processed as possible! But in the end, their whey protein taste great and the there is value for money! Will continue to buy from them and recommend them to anyone interested in a more natural protein

Sarah A. (Melbourne, VIC)
Smooth milk powder

This powder is very smooth and has a nice taste. The ordering process was very easy and product was delivered quickly with no fuss. Will order again:)

Tracy D. (Brisbane, QLD)
Great product.

I’ve been using whey for quite awhile and Mirrabooka definitely rates No 1. Smooth consistency and no after taste. Excellent value for money with the extra bonus of supporting an Aussie business. I will be purchasing again.

LAURA C. (Brisbane, QLD)

After having tried various brands of Whey protein powder on the market; we have found this to be the absolute best!
Most significant is that the taste is really pleasant (chocolate), all natural ingredients (without all the nasty additives & chemicals!) and it is super easy to mix! We use milk or water, and both work equally as good as each other! I have found other protein powders lumpy and very hard to mix; whereas this is always smooth and consistent- easily achievable too!
Extremely happy with this purchase and will be an ongoing permanent customer! Wish we had discovered this product ages ago!
Would highly, highly recommend!!

Hugo C. (Perth, WA)
Grass-fed is king

Great product

Matthew S. (Sydney, NSW)

Tastes great not to heavy with speedy delivery

Simon C. (Brisbane, QLD)
Unflavored all the way

Love the unflavored, I put it in everything

Lewis O. (Sydney, NSW)
Very clean and light

I was pleasantly surprised by how clean and light this protein powder tastes. The best thing for me, apart from the light, frothy texture it produces in the mix, is that the vanilla flavour I ordered is only very lightly sweetened, as it claims, as I find most flavoured powders so sweet that I just ended up chosing the plain ones. This one gives you plenty of room to even add a touch of your own flavours/fruit and still not come out sickly sweet. A great taste.

Directions For Use

Add one level scoop (30g) and 200-250ml of water to a shaker bottle.
Close the shaker bottle lid firmly to ensure a proper seal.
Shake well for 30 seconds, then drink immediately.

Consult our Protein calculator to learn how much protein you should be consuming per day, based on your unique needs.
Consume 1-3 times daily, 30-60 minutes after exercise or between meals as a snack.
For best results, consume enough protein to meet your daily protein requirements through a combination of protein-centric meals and protein supplementation spread throughout the day as part of a balanced diet and exercise program.

Compatability information:

  • Suitable for protein shakes and smoothies.
  • Shakes and blends well with cool or cold water, milk, skim milk, oat milk and almond milk.
  • Requires the use of a shaker bottle or a blender.
  • Protein powders do not mix with a teaspoon in a glass.
  • Not intended for use with hot liquids, e.g. hot water.

Australian whey protein concentrate (milk), ethically sourced cacao, organic stevia leaf extract.
Contains milk and milk products.

100% of protein from Whey Protein Concentrate.
Naturally flavoured and lightly sweetened with organic stevia leaf extract; a natural, plant-based, zero calorie sweetener.

Our dedicated production facility does not process any products which contain fish, shellfish, wheat, egg, nuts, or gluten.
Whey protein is a dairy product, a milk product. It naturally contains lactose (approx. 2g per serving).
Contains trace amount of sunflower lecithin for solubility.

Formulated without:
Filler ingredients, added sugar, proprietary blends, amino spiking, stimulants, synthetic vitamins, added sodium, artificial flavours, colours, thickeners, artificial sweeteners, anti-caking agents.

Our jars are BPA free.