A simple 1 month plan that actually works
Fast Start takes the guesswork out of weight loss — backed by CSIRO science and delivered straight to your door.
Get my Starter Kit
How Fast Start transforms your weight over time
Week 0
Prepare for success
- Activate your 1 month program and confirm your preferences.
- Set clear, realistic goals aligned to your lifestyle.
- Explore your personalised meal plan, recipes and My Journey guide to start with confidence.
Week 1-3
Enjoy your shakes and follow the program
- Replace breakfast and lunch daily with your high-protein Fast Start shakes.
- Enjoy balanced CSIRO Total Wellbeing Diet dinners plus planned snacks.
- Follow the structured program to reduce guesswork and support consistent fat loss.
Week 4 and beyond
Reset for long-term success
- Reflect on the progress you've achieved over four week and gradually reintroduce wholefood meals.
- Reset your goals and refine your plan for the next stage.
- Continue Fast Start shakes, the full program, or both to maintain long-term results.
Everything you need in one kit
No meal planning, no guesswork — your Starter Kit has everything you need to complete the full 1 month program.
42 high-protein Fast Start shakes
Three weeks of structured support with 2 meal replacements per day. Scientifically formulated to help control hunger, reduce kilojoule intake and support healthy weight loss, without compromising nutrition.
1 month access to CSIRO Total Wellbeing Diet program
Unlock 1 month of expert guidance at no additional cost and experience the program trusted by thousands of Australians. Receive structured meal plans, recipes and guidance to help you build sustainable habits. No lock-in contract. No ongoing commitment.
BONUS Shaker bottle
Everything you need to get started straight away and make preparation — at home, at work or on the go.
Your guide to lasting results
Fast Start shakes are a powerful tool for weight loss. But the long-term transformation happens when you use them whilst following a structured, science-backed plan. Your 1 month access to the CSIRO Total Wellbeing Diet includes:
- A personalised, science-backed eating plan tailored to your goals.
- Simple, high-protein recipes designed to complement your shakes.
- Progress tracking tools to keep you motivated.
- Expert guidance to help you build sustainable habits.
- Full access to the CSIRO Total Wellbeing Diet app, so you stay supported anytime, anywhere.
FAQs.
- Product
- Program
Our CSIRO-backed meal replacement shakes are created with high-quality ingredients that provide a balanced combination of protein, carbohydrates, fats, vitamins, and minerals to ensure your nutritional goals are met. The meal replacement shakes are high in fibre, gluten-free and contain no artificial colours, flavours, sweeteners or preservatives.
Our Deluxe Edition of the Fast Start 3 Week Starter Pack is the deliciously deluxe way to lose weight faster with the CSIRO Total Wellbeing Diet. The Deluxe Edition includes:
- Total of 42 Fast Start Shakes (meal replacements)
- 10 x Cookies & Cream shakes
- 10 x Butterscotch shakes
- 12 x Chocolate shakes
- 12 x Vanilla shakes
- Free Shaker bottle (colour and style may vary to the picture)
Our Fast Start Shakes are gluten free, however, they arenotdairy-free or vegan as they do contain milk and soy-based ingredients.
Our biggest point of difference is in the approach we take to making sure our members are:
- educated about nutrition.
- supported on their weight loss journey.
- able to transition off the meal replacement shakes and onto a varied whole foods diet.
Meal replacement shakes alone aren't a long-term solution to weight loss because most people will revert to their original diet once they stop having shakes. The Fast Start meal replacement shakes are combined with the CSIRO Total Wellbeing Diet, which is key for healthy weight loss and long-term behaviour change.
Members who buy Fast Start shakes will use these meal replacement shakes for breakfast and lunch, while eating a CSIRO Total Wellbeing Diet dinner for three weeks. After this, they’ll transition to a complete CSIRO Total Wellbeing Diet meal plan.
We ship with Australia Post and delivery times vary from state to state. For full information about delivery times, please view our shipping information page.
No, we do not offer exchanges on flavours in our starter packs.
Yes, when you become a member you can purchase more Fast Start Shakes via our member-version of this TWD Shop.
Suitability for diabetes
In general, the Fast Start meal plan is not suitable if you have diabetes. However, everyone is different, and we encourage those with diabetes who are interested in the Fast Start meal plan to consult with their doctor first. If you have been cleared by your doctor to join the program, you can click here.
The standard TWD program includes a Diabetes-friendly meal plan for those with prediabetes or type 2 diabetes. If you have type 1 diabetes, it is strongly recommended that you speak with your doctor prior to joining the program to see if the program is right for you. Find out more about the TWD program here.
Is Fast Start suitable during pregnancy or breastfeeding?
The Fast Start meal plan is not suitable during pregnancy.
In general, the Fast Start meal plan is not suitable while breastfeeding, since a reduction in kilojoule intake can decrease milk supply. However, if you are interested in following the Fast Start meal plan, it is important to speak with your doctor first so they can provide personalised guidance.
When you purchase your shakes, you’ll receive an email with a special code to use to access your 1-month CSIRO Total Wellbeing Diet program. Simply click the link in the email to set up your account.
Yes! You can continue following the CSIRO Total Wellbeing Diet once your free month is complete. Check out our best member offer currently available here.
Fast Start shakes are a powerful tool for weight loss. But the long-term transformation happens when you use them whilst following a structured, science-backed plan.
The CSIRO Total Wellbeing Diet program is designed to help you use your shakes strategically — so you see better results in four weeks and build habits that last.
Following the program along with the Fast Start shakes will help you:
- Get faster, more consistent results with a clear, structured approach.
- Know exactly what to eat and when, alongside your shakes.
- Stay accountable and motivated with built-in tracking and guidance.
Most people begin by replacing two meals per day (typically breakfast and lunch) with Fast Start shakes for the first three weeks, while enjoying a balanced CSIRO Total Wellbeing Diet dinner and planned snacks.
After the initial three weeks, many people transition to the full CSIRO Total Wellbeing Diet meal plan using whole foods.
Some people prefer a more gradual approach, such as continuing with one shake per day for longer, or using Fast Start shakes occasionally during the week for convenience or when they need extra structure.
Fast Start is designed to work alongside the program, giving you a simple way to reduce energy intake while still following a balanced, high-protein eating plan.
Start your 1 month program today
Join thousands of Australians who've already started their weight loss journey with CSIRO-backed science.