Two in three adults are overweight or obese in Australia - and Professor Grant Brinkworth from CSIRO has the science to back it up.

But curbing the effects of obesity is as simple as changing your diet - with a low-carb approach dramatically reducing the risk of diabetes and heart disease.

Watch the full story above.

"For many years, we've had the high-carbohydrate, low-fat approach - and research shows it's only offering people moderate benefits," Brinkworth said.

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"The research continues to evolve, and it shows that eating a dietary pattern that's lower in carbohydrates and higher in protein and healthy fats is an effective way to sustain long-term weight loss and improve your blood glucose control and heart health."

Who the diet works for

"It's a dietary pattern that's still nutritionally complete, so it still has an adequate amount of vitamins, minerals and fibre, and can be used by a variety of people," Brinkworth said.

"But it is an energy-controlled plan, so for people that are trying to lose weight, and in particular people with insulin resistance, type 2 diabetes or metabolic syndrome, it can be particularly effective because of the enhanced improvements with blood glucose control.

"The CSIRO low-carb books do recommend you do it in conjunction with exercise because that's just as important for weight management and health outcomes.

Resistance on the muscles will help to maintain muscle mass and a higher metabolic rate. Credit: Getty Images Stock

"The research shows that if you combine a low-carb diet with resistance exercises in particular, it's really effective for sustaining long-term weight loss.

"Resistance on the muscles will help to maintain muscle mass and a higher metabolic rate, which makes it easier to maintain a healthy body weight long-term.

"The exercises only have to be around a moderate intensity - and roughly 30 to 60 minutes a day is recommended."

Based on evidence

"The CSIRO is only going to put out lifestyle plans that are evidence-based," Brinkworth said.

"It's using the latest scientific evidence to bring solutions to the Australian people that are actually going to work - and we've got evidence to prove that."

Find out more about the CSIRO Low-Carb Diet: Quick and Easy recipe book here.