Weight loss and aesthetic treatments: what they can — and cannot — do

Four objectives that should not be confused

“I want to lose weight” can reflect very different needs. Weight loss means a reduction in total body weight; fat loss describes a change in body composition; body contouring aims to change the shape of an area; and reducing swelling means reducing a temporary build-up of fluid. Scales, a tape measure and photographs do not measure the same thing.

This distinction avoids false expectations. Drainage can produce a feeling of lightness without reducing fat. A localised procedure can discreetly modify the contour without changing the weight. Strength training can build muscle and improve measurements while the number on the scale stays the same.

Why weight changes — and why it doesn’t just depend on willpower

Weight is influenced by diet, physical activity, sleep, stress, medications, age, environment, genetics and health conditions. The body's response also adapts to weight loss, increasing hunger and reducing energy expenditure in some people. Reducing a complex process to individual discipline is not very helpful and can increase guilt.

A clinical evaluation is particularly important when there is a rapid or unexplained increase, associated symptoms, metabolic disease, medication that promotes weight gain, episodes of binge eating or several unsuccessful attempts. The goal is to understand the context, not look for an aesthetic shortcut.

What makes a safe weight loss plan

Credible programmes propose realistic goals, a sustainable eating plan, adapted physical activity, support for behaviour change and monitoring of progress. They should consider preferences, routine, limitations and health conditions, rather than imposing a rigid solution on everyone.

Depending on body mass index, complications and medical evaluation, medications or metabolic surgery may be considered. These options do not belong to a spa and require qualified professionals. Aesthetic monitoring, when desired, must remain complementary and linked to the health journey.

Where aesthetic treatments can play a role

Once the goal is clearly defined, aesthetic treatments may help with comfort, skin texture, firmness, muscle tone or a small area of subcutaneous fat. They may also help some people maintain a self-care routine and follow changes in their body more consciously.

The FDA is clear: non-invasive body contouring technologies do not treat obesity and do not produce the health benefits of weight loss. No aesthetic results should be used to suspend medication, change clinical recommendations or replace adequate physical activity and nutrition.

• Drainage: can support the management of swelling in appropriate indications.
• Massage and mechanical stimulation: mainly temporary effects on texture and comfort.
• Energy-based technologies may act on localised fat, skin or muscle, depending on their mechanism.
• None of these options is equivalent, in isolation, to a weight loss programme.

How to track progress without relying only on the scales

The right measure depends on the goal. When working towards better health, weight, waist circumference, medical tests, physical capacity, sleep and wellbeing may all be relevant. For a localised procedure, standardised photographs, measurements repeated at the same point and skin texture assessments are more appropriate.

Weight varies daily with hydration, salt, intestinal transit and menstrual cycle. An isolated measurement does not demonstrate success or failure. Monitoring must observe trends and, above all, whether the plan is tolerable and sustainable.

Promises that should make you stop and ask

Be wary of claims such as “melting fat”, “detoxing to lose weight”, “guaranteed centimetre loss” or “replacing exercise”. Question before-and-after photographs taken under different conditions and extensive treatment packages sold before any response has been assessed.

Responsible communication admits limits, adverse effects and the possibility of a modest response. The best proposal is not the one that promises the quickest change; It is the one that clearly explains the objective, the method, the monitoring and the alternatives.