Behind every treatment, a doctor.

At AiON, every assessment, every prescription and every dose adjustment goes through a doctor registered in Spain. It would have been quicker to leave the doctor out. We did the opposite.
Who leads
Dr. David Céspedes Gómez, medical director. Degree in Medicine and Surgery from the Complutense University of Madrid and specialist in Preventive Medicine and Public Health. Registration no. 2855347.
He comes from preventive medicine, the kind that asks how to arrive earlier and reach more people. He oversees every AiON protocol and answers for it.
Our clinic
Our clinic in Madrid, Clínica Evolution, brings metabolic medicine, nutrition, psychology and obesity surgery together in one team. Every week it sees straightforward cases and cases that are not. AiON's protocols come out of that consulting room.
Our results
We measure our work because it is the only honest way to know whether it makes a difference. Among our weight-loss patients at Clínica Evolution:
- 98% reach their goal.
- 3.4 kg average loss per month.
- 100% recovery of muscle mass.
Of the three figures, the last matters most to us. Muscle is what lifts you out of the chair at eighty. Losing weight without leaving it behind changes how the following years are lived.
Data from weight-loss patients at Clínica Evolution. Not a promise: each person responds differently.
A written protocol
Good medicine cannot depend on how anyone's day has gone. That is why every proposal comes from a clinical protocol written by our medical team.
It sets what is asked, when treatment is appropriate, which plan to start with, how to adjust it and when to refer to another specialist. Two people with the same case receive the same judgement.
Understand before you treat
Before prescribing, your doctor looks at:
- Your medical history.
- Your metabolic and hormonal factors.
- The medication you take.
- Your habits and your goal.
Sometimes the answer is to start right away. Sometimes, to ask for a blood test first. Nobody is ever treated blind.
Below you will find the team behind your treatment. Where we want all this to lead is in our vision.
The guide explains. The doctor decides.
Online assessment, prescription where appropriate and ongoing follow-up.










