We find what standard blood work misses. Heal From Within is a physician-led, 100% virtual functional medicine clinic using advanced diagnostics to uncover the root cause of your fatigue, gut issues, hormonal imbalance, and inflammation, then builds a personalized protocol to fix it.
If you've been told "everything looks normal" but you still feel off, you're in the right place. Millions of patients suffer through symptoms that conventional medicine simply doesn't have the tools to identify. Functional medicine changes that. We go deeper, looking at the full picture of your biology to find what's truly driving your symptoms.
Chronic Fatigue & Low Energy
Persistent exhaustion that sleep doesn't fix, often tied to mitochondrial or adrenal dysfunction.
Hormonal Imbalance
Irregular cycles, low libido, mood swings, and weight changes rooted in hormone dysregulation.
Gut Dysfunction & Bloating
IBS, SIBO, leaky gut, and digestive distress that conventional GI doctors miss.
Brain Fog & Poor Focus
Cognitive sluggishness often linked to inflammation, nutrient deficiencies, or gut-brain imbalance.
Chronic Inflammation
Systemic inflammation driving joint pain, fatigue, and accelerated aging at the cellular level.
Autoimmune Patterns
Early-stage immune dysregulation detectable years before a formal diagnosis is made.
Metabolic Dysfunction
Blood sugar instability, insulin resistance, and weight issues that go beyond diet and exercise.
Stress & Adrenal Fatigue
Burnout, cortisol dysregulation, and the physical toll of chronic stress on your body.
Why Heal From Within
This Isn't the Doctor's Office You're Used To
Conventional medicine is designed to treat disease after it develops. Functional medicine is built to prevent it, and to find the dysfunction that's already making you feel unwell. Here's the difference in practice.
Most Doctors
Run basic labs that only catch disease once it's advanced
Prescribe medication to mask symptoms rather than resolve them
Offer 10-minute visits with cookie-cutter protocols
Wait for you to get sick enough to treat
Limited exclusively to pharmaceutical options
Heal From Within
Advanced functional testing that catches dysfunction years early
Personalized protocols that address the true root cause
Thorough consults with data-driven 3–12 month programs
Proactive optimization before disease has a chance to develop
Full toolkit: nutrition, supplements, peptides, and lifestyle
How It Works
From First Call to Real Answers in 4 Steps
No office visits. Lab kits ship directly to your door. All consultations happen via secure video or phone on your schedule, wherever you are in the country.
Most patients begin experiencing measurable results within the first 60–90 days of their personalized protocol. Our structured programs run 3 to 12 months, designed to build lasting change, not a temporary fix.
Our Diagnostics
We Don't Guess. We Test.
Standard blood panels catch only a fraction of what drives your symptoms. We use advanced functional labs that most conventional doctors don't even know exist, giving you a complete, data-driven picture of your biology.
GI-MAP
Comprehensive gut microbiome analysis revealing pathogens, inflammation markers, and digestive enzyme function with DNA-level precision.
DUTCH Hormone Test
Advanced sex and adrenal hormone assessment including cortisol rhythm, estrogen metabolites, and androgen pathways, providing the most complete hormone picture available.
Metabolomix+ Panel
Comprehensive nutrient status, oxidative stress markers, amino acid levels, mitochondrial health, and detoxification pathways in one panel.
TruAge Biological Age
Epigenetic methylation testing that reveals your true biological age and the rate at which your cells are aging, independent of your calendar age.
Food Sensitivity Panel
IgG immune reactivity testing across 190+ foods to uncover hidden inflammation triggers that are silently driving your symptoms.
Adrenal Stress Profile
Four-point cortisol rhythm testing to evaluate energy patterns, HPA axis function, adrenal fatigue, and your body's full stress response cycle.
Patient Results
Real Patients. Root-Cause Results.
We don't collect testimonials, we earn them. When you stop guessing and start testing, the results speak for themselves. Here's what our patients say after working with the Heal From Within team.
"Dr. Landi is the first doctor in 38 years to find the actual problem and address it at its roots. After just one week on his protocol I noticed immediate differences, and now 3 months in I am beginning to feel like myself again."
— Jenna
"He has helped me in ways that medical doctors only could slap a band aid onto. I had been struggling with major gut issues, which trickled into my hormonal, dermatological, and mental health. Working with Dr. Landi has been a godsend."
— Linda G.
"After years of being told 'you are fine, everything is normal,' I finally had someone who listened to me! He took time to go through tests, protocols, and questions in great detail. I truly can't recommend him enough."
— Kristen R.
4.9★
Google Rating
Consistently rated nearly perfect across all major review platforms.
100+
Five-Star Reviews
Verified patient reviews from across the country on Google and Birdeye.
38
Years Missed
One patient's root cause went undiagnosed for 38 years before finding us.
Your Medical Team
Physician-Led. Not Coach-Led. Not AI-Generated.
Every protocol at Heal From Within is designed, reviewed, and supervised by licensed clinicians with decades of combined clinical experience. When you work with us, you are working directly with doctors, not wellness coaches, not automated systems, not algorithms.
Dr. Saul Maslavi, MD
Medical Director
Board-Certified in Family and Integrative Medicine, Dr. Maslavi brings over 20 years of clinical experience guiding patients beyond symptom management. He specializes in functional and integrative medicine, hormone replacement therapy, and a carefully measured approach to peptide therapy, combining deep medical training with a whole-person philosophy of care.
Dr. Eric Landi
Co-Founder — Funtional medicine doctor, KICP Certified
With a decade of clinical experience in functional testing and data-driven protocols, Dr. Landi carries forward a 60-year family legacy in holistic health. He is known for giving patients answers when no one else could, diving deep into advanced diagnostics to identify the upstream causes that conventional medicine consistently overlooks.
Is This Right for You?
We're Selective About Who We Work With
Heal From Within builds structured, long-term programs rooted in real data, not quick fixes or short-term symptom management. Our approach requires commitment, curiosity, and a genuine willingness to understand and improve your health from the inside out.
We're probably not the right fit if you…
Want a prescription without any investigation or testing
Are unwilling to make meaningful lifestyle changes
Are looking for a quick fix or a temporary band-aid solution
Aren't open to a data-driven, evidence-based approach to your health
Prefer to manage symptoms rather than resolve root causes
You're a perfect fit if you…
Want to truly understand WHY you feel the way you do
Are committed to a structured 3–12 month health program
Want a physician who treats you as a whole person, not a symptom
Are ready to invest seriously in your long-term health and vitality
Have been dismissed by conventional medicine and deserve real answers
The Functional Medicine Difference
A New Standard of Care Built Around You
Functional medicine is not alternative medicine. It is advanced, evidence-based medicine that asks a different question: not just "what disease do you have?" but "why is your body not functioning optimally, and what can we do to restore it?" This is the foundation of everything we do at Heal From Within.
Root-Cause Medicine
We trace every symptom upstream to its biological origin, whether that's nutrient depletion, hormonal disruption, gut dysbiosis, or chronic inflammation, rather than suppressing how it presents.
Personalized Protocols
No two bodies are alike. Your protocol is built from your specific lab data, health history, lifestyle, and goals, then refined over time as your results evolve and your health improves.
Accessible Nationwide
100% virtual care means you access a world-class functional medicine physician from anywhere in the country, no travel, no waiting rooms, no geographic limitations on your health.
Get Started Today
Stop Guessing. Start Healing From Within.
Your free 15-minute consultation is a strategy session with a real clinician, not a sales call. You'll leave with clarity about what's driving your symptoms and a clear picture of how we can help. No pressure. No commitment. Just answers you've been waiting for.
Your free consultation includes: A review of your symptom history, an overview of which advanced labs apply to your case, and a clear explanation of how our programs work, with zero obligation to enroll.