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  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition
  • High Protein Shake RTD by Optimum Nutrition

Estimated delivery by Wed Nov 18 · +48 hrs for Black Friday

from 159 verified customers

2 sizes / 4 flavours

High Protein Shake RTD by Optimum Nutrition

Price $5.20 $6.50

Your Black Friday savings$1.30

Closing soon 20% off sitewide midnight AWST Sat 14 Nov left

Click & Collect Availability

  • Provides a protein serve
  • Supports muscle recovery
  • Convenient daily serve
  • Mixes easily into any drink

GOES GREAT WITH

  • Gold Standard 100% Whey by Optimum Nutrition $53.56$66.95Save $13.39
  • Micronized Creatine by Optimum Nutrition $75.96$94.95Save $18.99
  • Hydration Drink V2 by Dr Hydrate $39.96$49.95Save $9.99
  • C4 Original by Cellucor $39.96$49.95Save $9.99
  • Cold Pressed Protein Bar by Fibre Boost $52.80$66.00Save $13.20
  • Inno Cleanse by Inno Supps $69.56$86.95Save $17.39
  • OxyShred by EHP Labs $63.96$79.95Save $15.99
  • R1 Protein Whey Isolate by Rule 1 $87.96$109.95Save $21.99
  • Precision Creatine Monohydrate by Precision Nutrition $27.96$34.95Save $6.99
  • Free Gift - Mystery Gift $0.00
  • OxyShred Energy RTD by EHP Labs $4.00$5.00Save $1.00
  • Nitro Wood by Inno Supps $67.96$84.95Save $16.99
  • Shipping Insurance $1.99
  • Night Shred Black by Inno Supps $91.96$114.95Save $22.99
  • Amino Energy Sparkling RTD by Optimum Nutrition $3.60$4.50Save $0.90
  • Ultimate Fibre by Qenda $91.96$114.95Save $22.99

Add $144.80 and shipping is free

  • Free gift when you spend $200
  • Free postage on orders over $150
  • East & west coast dispatch
  • Easy returns within 30 days

Good fit for

  • Intense energy boost
  • Everyday hydration
  • Laser focus

Not for

  • Caffeine sensitivity
  • Use close to bedtime
  • Under 15

About this product

High Protein Shake RTD by Optimum Nutrition is a ready to drink can in our Ready to Drink range. Its ingredient detail and nutrition panel sit in the Nutrition & ingredients tab further down this page.

It comes in a single 375ml size and is also sold by the box. There are four flavours to choose from. It suits anyone who wants a serve with no shaker involved.

  • Free standard shippingFREEOrders $150 and over, anywhere in Australia.
  • Standard$12.95Orders under $150. Tracked, from the warehouse closest to you.
  • Express$19.95Australia Post express network, any order value.
  • Express + Skip The Line$29.95Your order is picked and packed ahead of the queue, then sent express.
  • Click & collectFREEReady in 4 hours at any of our 58 stores. No minimum.
  • Australia Post parcel lockerSAME RATESHave it sent to a 24/7 parcel locker instead of your door and collect whenever suits. Choose a locker address at checkout; standard and express rates apply as above.
  • Shipping insurance$1.99Optional freight protection, added in the cart.
  • Eco bag$0.99A reusable Supplement Mart bag you can add to your order.
  • Heavy RTD levy$20Cartons of ready-to-drink only. The $150 free threshold still applies to the rest of the order.

Black Friday volume means orders are taking a little longer to leave us than usual. The rates above are what you will see at checkout.

Unopened and unused, send it back within 30 days for a refund or a swap. Change of mind included. Sealed tubs only, for obvious reasons.

Not sure which one is right for you? Ask us in chat, or walk into any of our 58 stores across Australia. Our staff train, so you get an answer rather than a sales pitch.

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THE OTHER HALF OF YOUR STACK

Whatever else is in the stack, protein is the part most people build it around.

Gold Standard 100% Whey by Optimum Nutrition

For building lean muscle

$53.56
Micronized Creatine by Optimum Nutrition

Suited to strength and power athletes

$75.96

The cheapest thing you can add to a session.

Hydration Drink V2 by Dr Hydrate

A 30 serve tub, four flavours

$39.96
C4 Original by Cellucor

Great for all training levels

$39.96

WHY IT WORKS

Optimum Nutrition High Protein Shake RTD is a smooth, ready-to-drink protein solution designed to fit busy lifestyles and support daily nutrition goals.

  • A ready to drink can
  • Great as a single or as a box
  • Great in four flavours

More about High Protein Shake RTD

Optimum Nutrition High Protein Shake RTD is a smooth, ready-to-drink protein solution designed to fit busy lifestyles and support daily nutrition goals. Each 375 mL bottle delivers 30 g of high-quality dairy protein with just 4.9 g of fat and no detected gluten. It’s a convenient way to refuel after training or enjoy as a high-protein snack throughout the day, with no mixing or preparation required. Available in indulgent flavours like Chocolate, Vanilla, Strawberry, and Banana, this shake offers both function and flavour without excessive sugar.

  • 30 g of protein per serve to support muscle maintenance.
  • Low in fat with just 5g per bottle.
  • No gluten detected and contains added dietary fibre.
  • Convenient on-the-go format – no prep required.

The protein content comes from a blend of milk solids, milk protein concentrate, and sodium caseinate, delivering a complete amino acid profile for muscle recovery and maintenance. With 11.3 g of carbohydrates per serve it provides light energy support without excessive sweetness. The inclusion of inulin, a source of dietary fibre (2.6 g per serve), contributes to digestive health and satiety. Whether you need a post-workout protein boost or a high-protein option to keep you going during the day, Optimum Nutrition High Protein Shake RTD is a practical choice that combines nutrition, convenience, and great taste. Simply chill, shake, and enjoy.

Nutritional Information

(Based on Chocolate flavour)

ALSO BY Optimum Nutrition

4.7 / 5 from 159 reviews

Out of Melbourne in a day

Ordered Monday night, on the doorstep Wednesday morning. Packed properly too, lid taped and no powder loose in the box.
Priya S.Verified buyerGeelong VIC

Does the job

No complaints on how it works, I just wish the scoop sat in the lid instead of buried at the bottom.
Jordan T.Verified buyerNewcastle NSW

Staff know their stuff

Rang before ordering because I work nights and had no idea what to take when. Got a straight answer and the cheaper option, which is not what I expected.
Mel R.Verified buyerAdelaide SA

Cheapest I found

Checked four other sites first. Same size, twenty dollars less, and it still shipped the same day.
Aaron K.Verified buyerBrisbane QLD

What is High Protein Shake RTD?

Optimum Nutrition High Protein Shake RTD is a smooth, ready-to-drink protein solution designed to fit busy lifestyles and support daily nutrition goals.

Who is High Protein Shake RTD for?

High Protein Shake RTD is aimed at: intense energy boost, everyday hydration, laser focus. It is not the right choice for: caffeine sensitivity, use close to bedtime, under 15.

JOIN OUR REWARDS PROGRAM

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  • 50 points to join
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