Clinical treatment protocol

This protocol provides detailed information about the OPTIFAST VLCD Program, who it is suitable for, and how it should be implemented. You can download the full clinical treatment protocol file here (2Mb pdf)

What is a VLCD?

Very Low Calorie Diets (also known as VLEDs or Very Low Energy Diets) have been shown to be very effective in the dietary management of obesity.

Find out more about VLCD.

Expected rate of weight loss?

During the Intensive Level of the OPTIFAST VLCD Program, on average: men lose 1.5-2.5kg per week, and women lose 1-2kg per week.

More about the expected rate of weight loss.

Ketosis and the 3 day challenge

Ketosis is a metabolic reaction that occurs in the body when following the OPTIFAST VLCD Intensive Level.

Find out more about the 3 day challenge.

Patient suitability

The OPTIFAST VLCD Program may not be suitable for some patients. Medical supervision is advised.

Find out if the OPTIFAST VLCD Program is suitable.

Determining readiness

For a patient to succeed with the OPTIFAST VLCD Program, it is important to assess their readiness to undertake the necessary behaviour changes required for effective weight management.

Find out more about patient readiness.

Calculating ideal body weight

Ideal body weight is calculated to help determine an appropriate weight for height or to determine a long term weight loss goal. We recommend that you use the ‘Adjusted Ideal Body Weight’ calculation.

Find out how to calculate ideal body weight.

Calculating protein requirements

OPTIFAST VLCD is formulated to contain adequate high quality protein in sufficient quantities for nitrogen sparing and to preserve lean body mass.

More about daily protein requirements.

Role of the healthcare professional

Research has shown that having the support and guidance of a healthcare professional will make the program more successful for your patients.

Managing the OPTIFAST VLCD.

Bariatric surgery and the OPTIFAST VLCD Program

Surgical intervention by way of bariatric surgery can result in substantial weight loss that is sustained over the long term when combined with education, ongoing monitoring and patient support.

Bariatric surgery and the OPTIFAST VLCD Program.

Diabetes and the OPTIFAST VLCD Program

Most overweight and obese patients with Type 1 or Type 2 diabetes are eligible to use OPTIFAST VLCD as part of an overall management program that emphasises the importance of ongoing weight maintenance.

Diabetes and the OPTIFAST VLCD.