“I tried so many diets. Calorie counting, intermittent fasting, commercial weight loss companies… They all worked short term. But I could never keep the weight off.”
★★★★★
Lorraine B – Age 62
“I tried so many diets. Calorie counting, intermittent fasting, commercial weight loss companies… They all worked short term. But I could never keep the weight off.”
“I never had to worry about my weight till I reached my mid 50s. Working in a high stress, long hours job, menopause and life in general all started to take their toll and I gained 14kg.
I was horrified when I saw myself on a film made for my occupation and vowed to do something about it.
I tried a variety of diets and approaches, including calorie counting, intermittent fasting, commercial weight loss companies, they all worked.
I lost weight but I couldn't keep it off and that was my ultimate goal.
One day my daughter told me about Dr Nick and his work and gave me Dr Nick's first book. From the first chapters I was sold. How many times had my friends and I said: “It seems as if there is a set weight you're meant to be and you always return to that weight.” And here was a program that showed you how to counteract that by reprogramming the set weight your body thinks it has. So I got started.
Initially I was frustrated because I didn't see the big weight losses you often get with some of the commercial diets I had tried, however I stuck to it, confident that all that research can't be wrong, and soon I saw regular weight loss.
Even better, I was able to maintain that weight loss.
So here I am 4 years later, 12kgs down and comfortably able to maintain my new set weight.
If I go off the rails, and I do occasionally, I know exactly what to do to get back on track.
The best thing is, it's not a diet, it's a way of living. A marathon, not a sprint. And it's not even hard to do. Nowadays I actually find it hard to talk about what I do, because it has just become my daily practice.”
WHAT YOU GET
8 Online Learning Modules – Implement the Habits One-by-One
Month 1
The Foundation
Modules 1 – 4
Understand why every diet has failed
Reset your metabolism before losing weight
Build a simple meal and grocery system on autopilot
End the month with habits that feel easy to sustain
Month 2
Your First Results
Modules 5 – 6
Lose your first 0.5–2kg without hunger or exhaustion
Add movement you actually enjoy
Feel the difference between losing weight and fighting for it
Month 3
Making it Permanent
Modules 7 – 8
Lock in the weight you've lost so it doesn't come back
Maintain results without ongoing restriction
Improve your sleep – the lever most programs ignore
And beyond...
Alternate between loss and maintenance months until you reach your goal.
Return to the baseline anytime life gets in the way.
No starting over. Just a quiet system you always come back to.
“The principles of IWL are easy to maintain and integrate into everyday life. I am now a really organised meal planner and prepper…”
★★★★★
Aisling
“The principles of IWL are easy to maintain and integrate into everyday life. I am now a really organised meal planner and prepper…”
“I was really lucky and never really struggled with my weight until my mid-30s.
After recovering from a significant mental health issue which resulted in rapid weight loss and then rebound weight gain, I knew I needed to do something.
I tried some commercial weight loss programs and while I lost weight, I was always hungry and then regained it after.
I first found IWL in a bookstore. From the start it seemed to make sense.
I lost 10kg slowly in my first year and kept it off for 3 years. I recently had to do my first weight loss month in a long time but it was easy to return to my set point weight which I'd held for a long time.
The principles of IWL are easy to maintain and integrate into everyday life. I am now a really organised meal planner and prepper.
I have also found exercise I love, including competing in my first open water swim race at Noosa. IWL isn't a diet, it's a change to your way of life, for the better.”
Yes. The Interval Weight Loss method is specifically designed with the hormonal and metabolic changes that come with this stage of life in mind. Conventional weight loss advice was written for a different body. This wasn't.
Yes. IWL is built around a lightweight flexible routine. Not to lock you in, but to reduce the daily decisions that drain you and make the right choices happen automatically.
Most people find it actually helps them feel more organised and in control across other areas of their life too.
Yes. The exercise catalogue includes low impact options specifically for people managing joint pain. And the method doesn't depend on intense exercise. Nutrition and habit change do the heavy lifting. Movement supports the process, it doesn't drive it.
Approximately 2kg every other month. Gradual and sustainable, which is exactly why it lasts when faster approaches don't. Most programs promise fast results and deliver short term change. IWL promises sustainable results and delivers permanent change.
IWL works well with or without it. GLP-1 medications work while you're taking them. The research consistently shows most people regain the weight when they stop because no habits were installed underneath. IWL is a great way to build the habit foundations while you’re on it so you can come off without regaining it when you’re ready.
The Research
Independently validated by the University of Wollongong in a peer reviewed study as the most effective long term weight loss program in Australia, outperforming CSIRO and Weight Watchers.
[1] Batterham et al, Nutrients 2025, 17(2):332. doi: 10.3390/nu17020332
Hear from one of our long-term members
★★★★★
Chris – Age 70
“A few years ago I weighed 110kg… 2.5 years later I'm still a trim 88kg. My knees are constantly saying thank you. I was approaching 70 years old and am continuing to enjoy life.”
★★★★★
Chris – Age 70
“A few years ago I weighed 110kg… 2.5 years later I'm still a trim 88kg. My knees are constantly saying thank you. I was approaching 70 years old and am continuing to enjoy life.”
“A few years ago I weighed 110kg with arthritis in both knees. I was asked to participate in an arthritis study but was told I had to lose 10kg first. At roughly the same time I heard Nick on 2GB Radio Sydney.
At my request my son gifted me Nick's book for Father's Day. By the time I'd dropped the required 10kg the arthritis study was closed. But I kept going, following Nick's methodology closely.
Approximately 2.5 years later I'm a trim 88kg, waist reduced from 40 to 34 inches. A bonus is two lots of reductions in daily blood pressure medication.
My knees are constantly saying thank you and I'm still challenging myself at the gym 4-5 times per week. I was approaching 70 years old and am continuing to enjoy life.”
Today is the easiest it will ever be
As we age, our biology only fights us more. Each month you
wait makes getting back to health harder.
