The case for utilising formulated meal replacements during the medical weight loss journey
When it comes to weight loss, many people think of different strategies as distinct or sequential: start with lifestyle changes like ‘eat less and move more’, then consider medication or surgery.
In this model, meal replacement shakes are often seen as a traditional, ‘restrictive’ or ‘dietiting’ approach – something to do for a specified period of time, then set aside once medication enters the picture.
But, that perception is now changing.
In the past, shakes were used in the form of a Very Low Energy Diet (VLED) – a short term, intensive approach, where all meals were replaced with shakes, soups or bars to induce rapid weight loss, usually entering a ketogenic state.
Whilst effective for some, this strategy is difficult to maintain and often leads to weight regain once a return to normal eating.
That’s where formulated meal replacement (FMR) shakes come in – a more flexible and sustainable option, particularly relevant during medical weight loss treatment.
What is a Formulated Meal Replacement?
Unlike VLED products, formulated meal replacements are designed for more adaptable use. They don’t require a prescription and are not limited to being purchased at pharmacies. They can be used flexibly, one to two times a day, alongside whole foods and even in the long term to help you reach your nutritional goals.
To qualify as a FMR in Australia, the product must meet strict guidelines around nutritional content, including essential vitamins and minerals, ensuring balanced support for overall health.
Why is this important during Medical Weight Loss?
Patients using medication to support weight loss often experience a reduced appetite and less food noise, which is expected, and often welcomed at the start.
However, side effects like nausea, reflux or bloating can further reduce intake – sometimes making it difficult to eat even half of what would be considered a normal meal.
Over time, this limited intake can result in:
– Malnutrition
– Micronutrient deficiencies
– Sarcopenia (loss of muscle mass)
– Disrupted bowel habits due to lack of fibre
In this context, relying solely on traditional food sources may not be sufficient or practical – especially when eating becomes physically uncomfortable.
That’s where high-quality, nutritionally balanced shakes can make a real difference.
A Strategic Nutrition Tool
Formulated meal replacements like the Enlighten Me Shakes are specifically designed to support patients during these challenging phases of medical weight loss.
Each shake contains:
– Over 32 grams of complete protein to support muscle mass
– Balanced vitamins and minerals
– Fibre to support digestive health
– Prebiotics, probiotics and daily greens
– Medium chain triglycerides to assist metabolism
When food is limited, whether due to medication or following recovery from bariatric surgery, every bite or sip needs to count.
These shakes are designed to deliver maximum nutrition in a small volume, making them a great supplement during times of reduced appetite.
They’re also titratable – meaning the serving size can be adjusted depending on appetite or individual needs.
On days when eating is difficult, a half shake can be enough.
On days with more physical activity or increased hunger, a full shake can provide additional support.
Supporting Long Term Success
Sustainable weight loss is more than numbers on a scale – it’s about preserving muscle, avoiding nutritional deficiencies, and maintaining a functioning metabolism.
Formulated meal replacements can offer practical, targeted support during periods when whole food intake is tricky.
For those on a medical weight loss journey, incorporating a well designed, nutritionally complete shake can help bridge that gap – ensuring that a reduced appetite doesn’t come at the cost of long term health outcomes.
Use the code MWSL at checkout to get started with the Enlighten Me Shakes, exclusive for readers of the MedSurg Weight Loss Blog
Dr. Angela Kwong
Guest Writer
NSW State Lead, RACGP Specific Interests Group in Obesity Management
