Reception area at Long Life Clinic in Marbella

Dr. Jean Garant · Medical License 6522 · Since 1991

Longevity clinic in Marbella

Since 1991

SEMAL & ACAM member

4.7/5 · 47 reviews on Google

Preventive medicine in Marbella since 1991

How we work: measure first, then decide

The goal of our program is to catch issues before they become chronic with evidence-based medicine. We stay current with the latest research and apply frontier science to your individual biology.

Our Services

Specialized Medical Services

We catch metabolic issues, heart problems, and hormone drops before they become serious.

Programme

Longevity Program

Plans built from your test results. We test, measure, adjust. We review your results with you at each follow-up, so any change is measured rather than assumed.

Test

Mycotoxin Testing

It’s hard to know if a person has been exposed to mold. That’s why we offer comprehensive mold toxicity screening to identify hidden environmental factors affecting your health.

Specialized Programs

Targeted protocols for specific health goals

Focused solutions for common health challenges. Plans built from your test results with measurable follow-up.

What Our Patients Say

NeiloreNeilore

"Dr. Garant is great! He is very attentive and thorough. And all of his staff are very friendly and helpful. Very professional office clinic! I highly recommend this clinic!"

George MitchellGeorge Mitchell

"Dr. Jean has so much knowledge. He’s also a very caring doctor. Always goes above and beyond for his patients."

Advanced methodology. Personalized care.

Let’s talk

Dr. Jean Garant

Frequently asked questions

We focus on prevention. We analyze hundreds of biomarkers to catch issues before they become chronic, using data-driven protocols to optimize your energy, hormones, and longevity. Results vary by individual.

We review your health history, current symptoms, and goals. Then we design a comprehensive testing plan tailored to your needs. Results typically take 2-3 weeks, after which we build your personalized protocol.

Yes. Many patients visit Marbella for initial consultation and testing, then continue follow-ups via video call. We ship test kits internationally and coordinate with local labs when needed.

We offer in-person consultations at our Marbella clinic and online video consultations. Both options include comprehensive analysis and personalized protocols. Contact us to schedule your preferred consultation type.

Response varies from person to person and cannot be predicted in advance. What we can tell you is how we measure it: follow-up testing at defined intervals, with the protocol adjusted according to what those biomarkers show.

From our blog

Evidence-based articles on longevity, hormones, and preventive medicine

Brain Health & Cognitive Optimization

Brain Health & Cognitive Optimization

Pregnenolone, vinpocetine, iodine, and the biomarkers that matter.

Gut Health & Microbiome After 40

Gut Health & Microbiome After 40

Butyrate, Akkermansia, SIBO — what these markers mean and how to improve them.

Longevity Food Protocol

Longevity Food Protocol

Pomegranate, green tea, ghee in. Glyphosate, refined sugar out. Evidence-based nutrition for longevity.

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