Clinic façade lit up at night

Gain life, not just lose weight

A medical weight loss programme that protects your muscle, measures what really matters and leaves you ready to keep it off.

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  • 15+Tests and measurements
  • Led by doctorsReal clinical follow-up
  • ES · EN · ITConsultations in your language

Our method

How it works LVNG

LVNG combines a full medical assessment, a personal plan and close follow-up so that you lose fat, not health.

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1. Your full assessment

Not just another check-up. We measure body composition, blood tests, strength and habits to understand why losing weight is hard for you.

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2. Review your results

We turn every result into a clear map of your health and go through it face to face with your doctor: what is excessive, what is missing and what needs protecting.

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3. Improve over time

Nutrition, strength, sleep and medical treatment if indicated. Reviews to measure progress and a plan to keep it off.

Our principles

“Losing weight is easy to measure.
Losing the right weight isn't.”
“Muscle is the organ of longevity:
protect it from day one.”
“No weight loss works
without a plan to keep it off.”
“Every recommendation, with its evidence.
No fads.”
Method LVNGObesity and longevity medicine

0 in 10

adults aged 25 to 64 in Spain are overweight or have obesity.1

0 %

or more of the weight lost with the new medicines was lean mass in some trials. That is why we measure and protect muscle.2

0 in 3

of the kilos lost were regained within a year of stopping treatment without a plan to keep them off.3

  1. Aranceta-Bartrina J, et al. ENPE study. Rev Esp Cardiol. 2016;69:579-87. PMID 27133458.
  2. Neeland IJ, et al. Diabetes Obes Metab. 2024;26 Suppl 4:16-27. PMID 38937282.
  3. Wilding JPH, et al. STEP 1 extension. Diabetes Obes Metab. 2022;24:1553-64. PMID 35441470.

What we measure

The five fronts
of excess weight

Excess weight isn't a number on the scale. It affects systems that deteriorate silently for years, and we keep an eye on all of them.

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Muscle

Losing weight without protecting muscle speeds up ageing. We measure lean mass, strength and function from day one.

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Metabolism

Insulin resistance comes years before diabetes. We look for it with glucose, insulin and HbA1c so we can act earlier.

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Heart

Visceral fat raises blood pressure, lipids and cardiovascular risk. We measure apoB, Lp(a) and your risk with validated scores.

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Liver

Fatty liver is common and silent. We assess it with blood tests, fibrosis scores and abdominal ultrasound.

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Sleep and mind

Sleep apnoea, stress and your relationship with food can sabotage any plan. We screen for them and treat them.

Our tests

The most complete assessment
for losing weight

A single figure doesn't tell the whole story. That is why we bring together body composition, blood tests, ultrasound, strength, sleep and habits in one programme.

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Our locations

A private space,
designed for you

Unhurried consultations with time to talk. A carefully considered experience from start to finish, far from the usual healthcare.

Programmes

Programmes designed
for your goal

Four levels that add professionals according to what you need. Three-month minimum commitment; after that you can change programme whenever you like.

LVNG Esencial

Your doctor, at every step

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Includes:

  • 30-minute first medical consultation
  • Review of your blood tests
  • Bioimpedance at every visit
  • Grip strength and measurements
  • Nutrition and strength guidelines
  • Treatment if indicated
  • Follow-up messages
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LVNG Integral

Your doctor and one professional of your choice

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Everything in Esencial, plus:

  • One professional of your choice:
    nutrition, training or psychology
  • Personal plan for that area
  • Coordination with your doctor
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LVNG Activo

Your doctor and two professionals of your choice

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Everything in Esencial, plus:

  • Two professionals of your choice:
    nutrition, training or psychology
  • Personal plans for those areas
  • Coordination with your doctor
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LVNG Signature

The complete programme, with DXA

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Everything in Esencial, plus:

  • Nutrition, training and psychology
  • DXA before your first consultation
  • Follow-up DXA at 6 months
  • Weekly meal plans
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LVNG Lab

Tools to
understand your body

Calculators with validated formulas and their source, in Spanish. They don't replace a consultation, but they help you arrive with better questions.

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FAQ

Can't find your answer? See all the questions

How is it different LVNG from a diet or a slimming programme?

LVNG is a medical programme. Before suggesting anything we measure your body composition, blood tests, strength and habits, and use them to design a plan for nutrition, exercise and, if indicated, medication.

The goal isn't only to lose weight but to lose fat while preserving muscle and reach a weight you can maintain. LVNG doesn't replace your family doctor: it complements them, and you can share your report with them.

Do I need medication to lose weight?

Not always. In each case we assess whether it is indicated, what benefits and risks it has for you and how it combines with nutrition and strength. If it is used, it comes with close follow-up and a plan from the start for when it is withdrawn.

Why do you measure muscle and not just weight?

Because part of what you lose when slimming can be muscle, and muscle is key to your metabolism, your independence and your long-term health. Measuring it at the start and during the programme lets us adjust protein and training in time.

What happens when I finish the programme?

You move on to LVNG Continuum, a maintenance plan with reviews further apart, to consolidate what you have achieved and spot any weight regain in time.

Who is behind LVNG?

LVNG is led by Dr Juan Fabiani de la Iglesia, a specialist in Family and Community Medicine (ranked first in his specialty training cohort) registered with the Seville College of Physicians under no. 414119259. He has over six years' experience in emergency medicine, has trained in longevity medicine, and his research, with 33 publications and conference papers, has focused on cardiovascular prevention, lipids and lipoprotein(a).

He sees patients in Seville and Barcelona, in Spanish, English and Italian. Every recommendation is based on clinical guidelines and published studies, which we cite in the Journal and the Lab.

Live longer. Live better.

The best years of your life may still be ahead of you.

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