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
VLCD Bar Cookies & Cream - 5 Meals
Achieve Your Weight Loss Goals, Guaranteed!
✔ Supports Weight Loss: Lose 1.5-2.5 kg per week with a balanced formula.
✔ High Protein: Keeps you fuller for longer & supports muscle maintenance.
✔ Essential Nutrients: Packed with calcium & 25 essential vitamins and minerals.
✔ Convenient Meal Replacement: Perfect for busy days or on-the-go snacking.
✔ Great Value: Just $4.79 per bar for a complete, nutritious meal.
💰 30-Day Money-Back Guarantee*, Your Success, Our Promise!
- Replaces 3 meals a day
- 18g+ protein · Under 250 cal
- Average weight –16% in 12 weeks
- 30-day money-back guarantee
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Description
Achieve Your Weight Loss Goals, Guaranteed!
✔ Supports Weight Loss: Lose 1.5-2.5 kg per week with a balanced formula.
✔ High Protein: Keeps you fuller for longer & supports muscle maintenance.
✔ Essential Nutrients: Packed with calcium & 25 essential vitamins and minerals.
✔ Convenient Meal Replacement: Perfect for busy days or on-the-go snacking.
✔ Great Value: Just $4.79 per bar for a complete, nutritious meal.
💰 30-Day Money-Back Guarantee*, Your Success, Our Promise!
Benefits
How to enjoy
Ingredients
The maths
It's $2.14 a meal. Less than a coffee.
Meal-replacement shakes for less than a price of a coffee. The science has been there for 25 years & now the numbers stack up too.
Café breakfast + flat white
$24.50/meal
Jenny Craig meal-replacement plan
$11.50/meal
Lite n' Easy breakfast pack
$8.90/meal
You
Optislim VLCD Classic Shake
$2.14/meal
What's inside the box
View full nutrition panel
12 weeks. One transformation.
One full VLCD cycle. Every shake is nutritionally complete — 17.7g of protein, 165 calories, and 25 essential vitamins & minerals. Add water or skim milk, shake for 15 seconds, drink. Three times a day for 12 weeks. That's it.
17.7g
Protein per shake
165
Calories
25
Vits & minerals
Why Optislim works
The science of real results.
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.
In their words
Loved by 10,000+ Australians.
"I feel stronger, more energised, and I'm proud to set a positive example for my kids."
“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.”
Common questions
Everything you want to ask
Real answers to the questions our team hears every day. Still unsure? Chat to a real human - we're here Monday–Friday, 9:30am–4:30pm AEDT
Will I be hungry?
Most customers report feeling full after each shake thanks to 18g of protein and 5g of fibre per serve. The VLCD program is clinically designed to keep you satisfied while in a calorie deficit. If you do feel hungry, you can add a free-list vegetable snack — the program guide walks you through it.
Is the VLCD program safe?
The Optislim VLCD program has been used in Australia for over 25 years and is built on clinically studied very-low-calorie diet science. As with any weight-loss program, we recommend speaking with your GP or pharmacist before starting, especially if you have an existing medical condition.
What if it doesn't work for me?
Everyone's body responds differently. If you're not seeing the results you expected, our support team can help you troubleshoot your program — from flavour fatigue to plateau-busting tips from the program guide. Reach out any day of the week.
How much weight can I expect to lose?
Results vary from person to person and depend on your starting weight and how closely you follow the program. In clinical VLCD studies participants recorded steady week-on-week loss across a 12-week cycle. The program guide shows you what a typical cycle looks like.
Do I need to take a subscription?
No — every product is available as a one-off purchase. Subscribing simply saves you money on each cycle and makes sure your next box arrives before you run out. You can pause or cancel anytime.
When will I see results?
Many customers notice a difference on the scales within the first week as their body settles into the program. The most visible changes typically come from staying consistent across the full 12-week cycle.
Can I keep the weight off after?
Yes — the program is designed with a maintenance phase that transitions you back to everyday meals without undoing your progress. The 12-week program guide covers exactly how to step down.
How quickly will my order arrive?
Orders ship within 1-2 business days from our Australian warehouse. Most metro orders arrive within 2-4 business days, and shipping is free on orders over $99.
Goes well with
Complete the routine.
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