On a GLP-1?Don't waste a single dose.
Your appetite is finally under control. But eating less means your body can miss the protein and nutrients it needs. That's how GLP-1 users lose muscle instead of fat. Optislim is the nutritional companion that makes every kilo you lose the right kind.
Less appetite. Less nutrition.
GLP-1 medications suppress hunger so well that most users under-eat protein and micronutrients, and up to 40% of the weight lost can be lean muscle, not fat.
You lose more than fat
Without enough protein, your body breaks down muscle to fuel the deficit, slowing your metabolism for good.
Small meals, missing vitamins
Eating half as much means half the vitamins and minerals. Fatigue, hair thinning and brittle nails follow.
What happens when you stop?
Lost muscle means a slower metabolism, the #1 reason weight comes back after GLP-1 treatment ends.
One shake. Every gap filled.
When you can only eat a little, every bite has to count. One Optislim serve delivers what a suppressed appetite can't:
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Up to 17g protein per serve to protect your muscle while the medication does its work
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25 vitamins & minerals for complete nutrition in a small, easy-to-finish serve
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Low calorie so it works with your deficit, never against it
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From $2 a serve the cheapest part of your GLP-1 routine
Fits your routine in 30 seconds
No meal prep. No forcing down food you don't feel like. One small serve, once or twice a day.
Take your dose
Keep following your GLP-1 program exactly as prescribed.
Sip a serve
Replace one or two small meals with an Optislim shake, mixed in 30 seconds.
Protect the result
Protein and nutrients keep your muscle, so the loss is fat and it stays off.
25 years of weight-loss nutrition. Built for this moment.
years on Australian pharmacy shelves
protein per serve to protect lean muscle
vitamins & minerals in every serve
from 5,600+ verified reviews
Small serve. Serious nutrition.
One Optislim VLCD shake. 165 calories that work harder than any meal you'd skip.
Optislim VLCD Classic Shake, per serve. See pack for the full nutritional information panel.
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.”
Frequently asked questions
- 1. Can I use Optislim while taking a GLP-1 medication?
Optislim shakes are a food, not a medicine, and are commonly used as a convenient source of protein and nutrients when appetite is reduced. Always discuss your diet with the doctor managing your GLP-1 treatment.
- 2. Why does protein matter so much on a GLP-1?
When you eat in a large calorie deficit, your body can break down muscle for fuel. Adequate protein intake helps preserve lean muscle, so more of the weight you lose is fat.
- 3. How many serves a day should I have?
Most GLP-1 users replace one or two small meals with a serve, using it to top up protein and micronutrients. Your healthcare professional can tailor this to your treatment plan.
- 4. What happens when I finish my GLP-1 treatment?
The muscle you've protected keeps your metabolism higher, and Optislim's range can support your maintenance phase, helping the results last.
30-day money-back guarantee
Feel the difference in 30 days or your money back, no questions asked.
Optislim products are formulated meal replacements. They do not treat, cure or prevent any disease and are not a substitute for prescribed medication. Always read the label and follow the directions for use. Consult your healthcare professional before starting any weight-loss program, especially while taking prescription medication.