"I feel stronger, more energised, and I'm proud to set a positive example for my kids."
10,000+ Australians transformed
Lose weight. Feel alive.
Australia's #1 clinically-proven meal-replacement program. Lose weight in 30-days or your money back.
Shop the range
Free shipping over $99
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Free shipping over $99
1-3 business days, AU-wide
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30-day guarantee
Lose weight or your money back
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Ready in 15 seconds
Shake, sip, get on with your day
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Up to 20g of protein per shake
Plus 25 vitamins and minerals
Most loved
Shop all 47
Shop our bestsellers.
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VLCD Classic Shake Chocolate - 21 MealsVLCD Classic Shake ChocolateAchieve Your Weight Loss Goals, Guaranteed! ✔ Proven Results: Lose 1.5-2.5 kg per week with our...Quick view
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VLCD Classic Shake Vanilla - 21 MealsVLCD Classic Shake VanillaAchieve Your Weight Loss Goals, Guaranteed! ✔ Proven Results: Lose 1.5-2.5 kg per week with our...Quick view
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VLCD Classic Shake Banana - 21 MealsVLCD Classic Shake BananaAchieve Your Weight Loss Goals, Guaranteed! ✔ Proven Results: Lose 1.5-2.5 kg per week with our...Quick view
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VLCD Classic Shake Strawberry - 21 MealsVLCD Classic Shake StrawberryAchieve Your Weight Loss Goals, Guaranteed! ✔ Proven Results: Lose 1.5-2.5 kg per week with our...Quick view
In their words
Loved by 10,000+ Australians.
“I wish I’d done it sooner. I feel more in control of my body than I have in years.”
“The more weight I lose, the better I feel. Best decision I’ve ever made.”
Benefits of Optislim
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100% Complete
All the nutrition you need. Every day.
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Save Time
Meals ready in 15 seconds.
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Save Money
From $1.52 per meal.
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No Nonsense
No unnecessary ingredients. No GMO.
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Taste Guaranteed
Love it or your money back.
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25+ Years
Decades of results & transformations.
Why Optislim works
The science of real results.
Clinical trial · 12 weeks
Real weight loss, week after week.
Average loss in our 12-week clinical study, based on 1,200+ participants on the VLCD program.
Logue et al. (2014) — PubMed 25586630
Clinically proven
2.5kg
Peak weekly loss in our VLCD trial. Independent clinical results.
25+ years strong
10,000
Real Australians transformed since 2001. Real lives, real before-and-afters.
Per shake
Built to keep you full.
Protein, fibre and 25 essential vitamins. Protects lean muscle while the kilos come off.
17.7gAVG. Protein
165AVG Calories
25VITamins & Minerals
7 flavours
Choose the one you'll crave.
From rich Belgian chocolate to bright summer strawberry. Every flavour, same clinical formula.
Formulated with clinicians
"I've used Optislim VLCD shakes with my patients in practice for over 20 years. They're a proven, practical way to support healthy weight loss and help patients stay on track"
Dr. Peter Lewis, MBBS, FAARM
How it works
Three steps. No guesswork.
Every Optislim program is designed around one principle — make losing weight the easiest thing in your week.
01
02Pick your program
Compare programs and find the right fit for your goals
Build your bundle
Mix & match flavours · 30% off · free shipping
03
Shake. Sip. Repeat.
15 seconds, 165 calories, 18g protein. Done.