What We Treat
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A holistic doctor who actually runs the tests to prove what's wrong.
Most holistic practitioners rely on intuition alone. We combine a whole-person philosophy with advanced diagnostic testing and physician-supervised protocols, so you get answers, not guesses. We leverage a powerful blend of time-tested wisdom and cutting-edge innovations to deliver exceptional results for our patients. Our approach isn't about simply treating disease; it's about empowering you to optimize your health and truly increase your healthspan.
Physician-Supervised
100% Virtual: No Office Visit Needed
HSA / FSA Accepted
100+ Five-Star Reviews
Our Approach
Holistic medicine backed by real diagnostics.
We believe in treating the whole person: mind, body, and biology. But unlike many holistic practices, we don't stop at philosophy. We test, measure, and track everything.
Test First, Treat Second
We use advanced functional lab testing (gut, hormones, metabolism, biological age) to understand what's actually happening inside your body before we recommend anything.
Root Cause, Not Band-Aids
We don't mask symptoms with medications. We identify the underlying dysfunction (inflammation, nutrient deficiency, hormonal imbalance, gut issues) and address it directly.
Physician-Supervised
Your care is led by a certified functional medicine practitioner and overseen by a board-certified MD. This isn't wellness coaching: it's clinical care with a holistic mindset.
What We Treat
The problems your regular doctor couldn't solve.
If you've bounced between specialists, tried everything, and still don't feel right. This is what we're built for.
Chronic fatigue & low energy
Hormonal imbalance
Gut issues & bloating
Brain fog & poor focus
Chronic inflammation
Autoimmune conditions
Weight that won't budge
Stress, anxiety & burnout
Premature aging concerns
We develop personalized protocols that integrate advanced nutritional guidance, targeted supplementation, peptide therapy (when appropriate) and comprehensive lifestyle coaching. Our aim is to treat the whole person, addressing underlying causes to restore optimal health and lasting well-being.
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.
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: 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.
Where Peptides Come Into Play.
Personalized peptide protocols for whole-person healing.
We believe in a comprehensive approach to health. Our practice combines advanced testing, nutritional and lifestyle guidance, targeted supplementation, Peptide Therapy, Hormone Replacement Therapy, and accountability coaching to help patients achieve lasting results and optimize their well-being.
Recovery
Soft tissue repair, inflammation reduction, and accelerated injury recovery.
Energy & Longevity
Cellular energy, cognitive clarity, and mitochondrial function.
Weight Loss
GLP-1 agonists for metabolic health, appetite regulation, and sustainable fat loss.
Skin & Anti-Aging
Collagen stimulation, skin rejuvenation, telomere support, and cellular regeneration.
Muscle & Performance
Natural growth hormone release for muscle building, recovery, and healthy aging.
Immune & Gut
Immune modulation, inflammation control, and gut health restoration.
Sleep & Focus
Cognitive clarity, anxiety reduction, emotional balance, and restorative sleep.
Metabolism
Mitochondrial peptide for metabolic optimization, energy production, and stress resilience.
How It Works
From consultation to custom protocol in 4 steps.
No office visits. Lab kits and peptides ship to your door. Everything guided by your physician.
01
Free Consultation
15-minute call with our clinical team to understand your goals and health history.
02
Diagnostics
Optional advanced testing shipped to your home: hormones, gut, metabolic, biological age.
03
Your Protocol
Your physician prescribes peptides, dosing, timing, and injection guidance; all tailored to your data.
04
Monitor & Adjust
Ongoing check-ins, progress tracking, and protocol adjustments as your body responds.
Your Medical Team
Every protocol prescribed by a licensed clinician.
This isn't a peptide marketplace. It's a physician-led practice that uses peptides as part of a complete system.
Dr. Eric Landi
Co-Founder: Functional Medicine, KICP Certified, Peptide Certification
A decade of clinical experience in functional testing and personalized protocols. Oversees every protocol offered. Carries forward a 60-year family legacy in holistic health.
Dr. Saul Maslavi, MD
Medical Director: Board-Certified Family & Integrative Medicine
20+ years helping patients move beyond medications. Specializes in hormone therapy, integrative medicine, and a measured, data-driven approach to peptide protocols.
Get Started
Holistic care that's built on answers, not assumptions.
Your free 15-minute consultation is a real conversation with a clinician, not a sales pitch. We'll listen, ask the right questions, and tell you honestly whether we can help.
Free — no cost, no obligation
Video or phone — your choice
HSA / FSA accepted
Available nationwide
© 2026 Heal From Within Longevity | 551-404-8820 | [email protected] | hfwlongevity.com