Functional Medicine
Rebuild the person you used to be.
Conventional medicine looks for disease. We look for what's causing it, whether you're sick or just want to feel better.
We test what's driving your weight, energy, sleep, and hormones. Then we treat it.
Get StartedResults
What you feel
How it works
Test. Find it. Treat it. Optimize.

Test
We start with a comprehensive metabolic panel and vitamin levels. Depending on your symptoms, we also look at thyroid, hormones, inflammation, gut health, and environmental exposure.

Find the cause
We look at your health history alongside your lab results. Since one symptom can have many causes, we work to find what's true for you.

Build the plan
We make a plan for your nutrition, sleep, movement, stress, and supplements. If needed, we include prescriptions. The plan is designed to fit your lifestyle. Follow-up doesn't stop when the appointment ends.

Go beyond healing
Once the basics are covered, we help you work toward your best health. This might include peptides, exosomes, therapeutic plasma exchange, or IV treatments. We make these decisions together, based on your needs.
Advanced Labs & Testing
What we evaluate
Hormones, thyroid and perimenopause
Weight gain during perimenopause, cold intolerance, hair loss, Hashimoto's symptoms with a normal TSH. Full thyroid panel with antibodies, sex hormones, cortisol. Low testosterone and PCOS included.
Chronic fatigue and burnout
Tired all the time even with 8 hours of sleep. Wired at night, flat by 3pm. We test real adrenal function and cortisol across the day, not one morning draw.
Weight loss resistance and insulin resistance
Can't lose weight no matter what you try, and your fasting glucose looks fine. Fasting insulin and HOMA-IR catch what glucose alone misses, often for years.
Brain fog and memory
Constant fog in your 40s, words that won't come. We look at neuroinflammation, blood sugar swings, thyroid, B12 and iron, and gut health before calling it age.
Gut health, SIBO and bloating
Bloated after eating even healthy food. An IBS diagnosis that treatments haven't touched. A clean endoscopy still misses SIBO and intestinal permeability.
Autoimmune conditions and chronic inflammation
Joint pain and swelling with a normal ANA. Early warning signs that got waved off. We track inflammatory markers alongside your rheumatologist's care.
Sleep and circadian rhythm
Waking at 3am, unable to fall back asleep. A normal sleep study and still exhausted. Cortisol and blood sugar timing drive more insomnia than most people are told.
Mold, heavy metals and chronic infection
Mold exposure, reactivated Epstein-Barr, heavy metal burden, tick-borne infection. Testing where the history supports it.

Who Treats You
She was the patient before she was the doctor
Dr. Luciana Martínez
Human Optimization Specialist · Functional Medicine
Studied at UCIMED and is completing advanced training in functional medicine at IFM. She was a patient before becoming a doctor.
This experience helps her ask questions that others might miss and approach sleep, stress, digestion, and hormones as parts of a connected system.
Our Patients
Reviews
"I've had several issues with my weight and lab results that always left me wondering why they weren't changing. Doctor Luciana's knowledge and different approach shed light on things that genuinely never would have occurred to me. Very professional, but above all, extremely knowledgeable."
Fernando Robles, Costa Rica
"I was exhausted by 3pm every day for two years and every test came back fine. They tested my cortisol across the day instead of one morning draw and finally found the pattern. I have energy again."
Michael R., Canada
"Nothing worked for the weight no matter how little I ate. My fasting insulin was high even though my glucose was normal. Once we treated the insulin resistance directly, the weight finally started moving."
Denise T., United States
"I'd been told my bloating was just IBS for years. Stool testing found SIBO that a clean endoscopy had missed. Treating it directly is the first thing that's actually changed how I feel after eating."
Priya N., Costa Rica
Individual results vary. Testimonials reflect individual experiences and are not a guarantee of outcome.
Questions patients actually ask
Frequently asked questions
Can you have Hashimoto's with a normal TSH?
Yes. Antibodies can be elevated for years before TSH moves. We run the full panel.
My doctor says it's stress. My labs are normal. What else is there?
One morning cortisol draw doesn't show the full picture. We test it across the day, plus ferritin, B12, vitamin D, and fasting insulin. We also ask about your lifestyle, mood, and relationships. We don't stop at the usual checklist.
Can normal fasting glucose miss insulin resistance?
Yes, often for years. Fasting insulin and HOMA-IR catch what glucose alone hides.
Why does everything I eat upset my stomach?
Most plans stop at "avoid the trigger foods." Few doctors look at your microbiota. We test it and build a plan to restore it, since an imbalance there is often the reason nothing has worked.
Why does a normal endoscopy still miss SIBO?
An endoscopy checks tissue. SIBO is a bacteria problem. Breath and stool testing catch it.
Why am I tired all the time?
It's a common question with several possible causes. Most doctors never ask about your sleep itself. We look at your sleep hygiene and rhythm alongside your labs, not just how many hours you got.
Why do I wake up at 3am every night?
Usually cortisol timing or a blood sugar dip. Both are testable and treatable.
Do I have to travel to Costa Rica?
No. U.S. patients are treated by telehealth. Patients in Costa Rica can choose in-person or telehealth visits. Advanced therapies do require being in Costa Rica.
What does it cost?
The first visit with our functional medicine doctor is $150. Labs, treatment, supplements, and medication depend on your case.
How long before I feel different?
Energy and sleep, usually two to three months. Hormones and digestion take a bit longer. Small changes often show up in the first month. This is teamwork: we build the plan, you follow it. How fast you see results depends on how closely you follow it.
Questions?
Call or email today:
Fill out this form for more information about our functional medicine program.
The first consultation with our doctor is $150.
Or email: patients@alltrybe.com