Medical Weight Management • Madison Avenue
Sustainable Weight Loss, Designed Around You
You've tried the diets. You've pushed through the programs. Yet the scale won't budge—or the weight keeps coming back. At Genesis Health, we look deeper to understand why your body is holding on, then create a personalized plan that works with your metabolism, not against it.
Understanding The Challenge
The Numbers Tell a Different Story
It's Not About Willpower — It's About Biology
The medical community increasingly recognizes obesity as a complex, chronic condition involving neurological, hormonal, and metabolic factors — not simply a result of poor choices.
Metabolic syndrome prevalence has more than doubled globally since 2000, now affecting an estimated 1.54 billion adults. In the U.S., rates among adults ages 40–65 approach 50%. Yet most conventional approaches still begin and end with "eat less, move more."
Emerging research confirms that insulin resistance, thyroid dysfunction, gut microbiome imbalances, and chronic inflammation can all independently sabotage weight management efforts — regardless of how disciplined you are.
Sources: CDC NHANES, Pew Research Center (2024), Nature Communications (2025), WHO Obesity Atlas 2025
The Real Challenge
Why Diets Alone Don't Work
"Eat less, move more" sounds simple—but if willpower were the answer, you'd have solved this long ago. The truth is, your metabolism, hormones, and gut health all influence how your body stores and releases energy.
Hormonal Imbalances
Thyroid dysfunction, insulin resistance, and cortisol dysregulation can make weight management nearly impossible—no matter how carefully you eat.
Metabolic Adaptation
Years of yo-yo dieting can slow your metabolism. Your body learns to hold onto weight as a protective mechanism.
Gut Microbiome
Emerging research shows that gut bacteria influence how you extract calories from food and store fat. An imbalanced microbiome can undermine your efforts.
Beyond Calories
What Standard Care Misses
Conventional weight management rarely looks beyond basic metabolic panels. But emerging research reveals a complex web of interconnected systems — hormones, gut bacteria, thyroid function, inflammation, and nutrient status — that can independently drive weight gain and resist weight loss.
A functional medicine approach investigates these deeper mechanisms, looking for the root cause rather than simply managing the symptom.
Insulin Resistance
Research estimates that up to 88% of Americans show some degree of insulin resistance — your body's fat-storage hormone. When cells become less responsive to insulin, the body compensates by producing more, creating a cycle that promotes fat storage regardless of dietary discipline.
Thyroid Dysfunction
Even subclinical hypothyroidism — often missed by standard TSH-only testing — is associated with decreased metabolic rate and increased body weight. Meta-analyses show obesity carries a 1.86-fold increased risk of developing hypothyroidism, creating a bidirectional cycle.
Gut Microbiome Imbalance
Growing evidence links gut microbial composition to body weight regulation. Studies show that obese individuals often display reduced microbial diversity and altered bacterial populations that may influence calorie extraction, fat storage signaling, and systemic inflammation.
Hormonal Imbalance
Estrogen, testosterone, and cortisol all influence body composition. Perimenopause, andropause, and chronic stress can shift the hormonal landscape toward fat accumulation — particularly visceral fat — even when diet and exercise remain consistent.
Chronic Inflammation
Visceral fat produces inflammatory cytokines that promote further insulin resistance, creating a self-reinforcing cycle. Elevated hs-CRP, IL-6, and TNF-alpha markers are frequently found in patients who struggle with weight despite genuine effort.
Nutrient Deficiencies
Deficiencies in vitamin D, magnesium, B vitamins, and omega-3 fatty acids can impair metabolic function, thyroid conversion, and energy production. These gaps are common even among people eating "healthy" diets — and are rarely assessed in standard weight loss programs.
Our Approach
Root Cause Weight Management
We don't believe in one-size-fits-all protocols. Your body is unique, and your weight management plan should be too. We start by understanding what's actually happening inside—then build a strategy designed around your biology, lifestyle, and goals.
Comprehensive Assessment
Advanced metabolic panels, hormone testing, and body composition analysis to understand your unique physiology.
Personalized Protocols
Your plan may include nutritional optimization, medical interventions when appropriate, and lifestyle modifications tailored to you.
Ongoing Partnership
Regular check-ins, adjustments based on your progress, and continuous support to help you achieve lasting results.
A Different Framework
Standard Care vs. Functional Approach
Understanding how a root-cause framework differs from conventional weight management.
- BMI as primary diagnostic measure
- Basic metabolic panel only
- TSH-only thyroid screening
- Caloric restriction as first-line strategy
- No assessment of gut health or microbiome
- No evaluation of inflammation markers
- No nutrient status assessment
- Standard reference ranges (broad "normal")
- Stepwise treatment: diet → medication → surgery
- Body composition analysis beyond BMI
- Comprehensive metabolic and hormone panels
- Full thyroid panel (TSH, fT3, fT4, rT3, antibodies)
- Personalized nutrition based on metabolic profile
- Gut microbiome assessment and optimization
- Inflammatory markers (hs-CRP, IL-6, homocysteine)
- Nutrient status (vitamin D, B12, magnesium, ferritin, omega-3)
- Functional "optimal" ranges for each biomarker
- Multimodal: nutrition, hormones, lifestyle, medication when appropriate
Recent clinical guidelines increasingly support multimodal, personalized approaches over stepwise protocols. The ACC/AHA and AACE/ACE now recommend individualized, multidisciplinary interventions based on disease stage and patient goals.
What's Included
Your Weight Management Program
A comprehensive, physician-led approach that addresses the underlying factors affecting your body composition and metabolic health.
Diagnostic Testing
Advanced assessments to uncover what's really driving your weight challenges.
- Comprehensive metabolic panel
- Thyroid function analysis
- Hormone level assessment
- Insulin sensitivity markers
- Body composition analysis
Medical Support
Physician-supervised interventions to support your body's natural processes.
- FDA-approved medications when appropriate
- Metabolic optimization protocols
- Hormone balancing support
- Regular progress monitoring
- Medication management
Lifestyle Guidance
Sustainable strategies that fit your life—not the other way around.
- Personalized nutrition planning
- Movement recommendations
- Sleep optimization
- Stress management techniques
- Behavioral support
Evidence-Based Support
Complementary Protocols
Your weight management plan may incorporate a combination of evidence-based therapies tailored to your unique metabolic profile. Rather than relying on any single intervention, we use a multimodal approach that addresses the specific factors driving your challenges.
Each protocol is selected based on your diagnostic results and adjusted as your body responds — because lasting results require ongoing refinement.
GLP-1 Medications
When medically appropriate, FDA-approved medications like semaglutide or tirzepatide may be recommended as part of a comprehensive plan. These work on appetite-regulating pathways in the brain, but are most effective when combined with metabolic optimization — not as standalone solutions.
Hormone Optimization
Thyroid optimization, testosterone support, and estrogen balance may be key pieces of your metabolic puzzle. Comprehensive hormone panels go beyond standard screening to identify subclinical imbalances that could be undermining your efforts.
Insulin Sensitization
Targeted nutritional strategies and, when appropriate, evidence-based interventions can help improve cellular insulin sensitivity — addressing the underlying driver of fat storage rather than just restricting calories.
Microbiome Restoration
Personalized approaches to restoring microbial diversity may include targeted probiotic protocols, prebiotic nutrition strategies, and addressing underlying gut dysfunction that could be influencing your metabolic health.
IV Nutrient Therapy
Targeted IV protocols may support metabolic function by directly addressing nutrient deficiencies that impair thyroid conversion, energy production, and cellular metabolism. Formulations are customized based on your lab results.
Sleep & Stress Optimization
Chronic sleep deprivation and elevated cortisol independently promote weight gain through hormonal disruption. We assess your stress response patterns and sleep architecture to address these often-overlooked metabolic factors.
These statements have not been evaluated by the FDA. Protocols involving supplements or IV therapy are not intended to diagnose, treat, cure, or prevent any disease. All medical interventions are physician-supervised and prescribed only when clinically appropriate.
Getting Started
How It Works
Your path to sustainable weight management begins with understanding—not restriction.
Discovery Call
A complimentary 15-minute call to discuss your goals, history, and determine if our approach is right for you.
Comprehensive Evaluation
A 60-minute initial consultation with advanced testing to understand your unique metabolic profile and health picture.
Your Personalized Plan
Receive a customized protocol designed around your biology, preferences, and lifestyle—with ongoing support every step of the way.
The Difference
Why Genesis Health
Physician-Led
Board-certified physicians who specialize in metabolic health and functional medicine.
Extended Time
60-90 minute appointments because complex challenges need real attention and understanding.
Data-Driven
Advanced testing and regular monitoring to track progress and adjust your plan accordingly.
Insurance Accepted
We accept most major insurance plans for medical weight management services.
Is This Right For You?
This Program Is Designed For
Our medical weight management program is designed for individuals who want a thoughtful, personalized approach—not another quick fix.
- You've tried multiple diets and exercise programs without lasting results
- You suspect hormones or metabolism may be playing a role
- You want to understand what's actually happening in your body
- You're looking for physician-supervised support, not just willpower
- You're ready to invest in sustainable, long-term health—not quick fixes
- You value personalized care designed around your unique needs
Expert Care
Your Care Team
Dr. Ruth Johnson
Founder & Lead Physician
Board-certified in Internal Medicine with expertise in metabolic health and functional approaches to weight management.
Dr. Ninoschka Seviliano
Holistic Doctor
Specializing in holistic approaches to health optimization with a focus on nutrition and lifestyle medicine.
Questions & Answers
Frequently Asked Questions
Unlike calorie-counting programs or one-size-fits-all approaches, we start by understanding your unique biology. Through comprehensive testing, we identify factors like hormonal imbalances, metabolic dysfunction, or gut health issues that may be contributing to your challenges. Your plan is then built around these findings—not generic guidelines.
When appropriate and medically indicated, we may recommend FDA-approved medications as part of a comprehensive approach. However, medication is never the only solution—it's one tool among many. We'll discuss all options during your consultation and determine what makes sense for your specific situation and goals.
We don't believe in deprivation or unsustainable restriction. Instead, we focus on optimizing your nutrition based on your body's needs, your lifestyle, and your preferences. The goal is to find an approach you can maintain for the long term—not a temporary fix that leaves you feeling deprived.
Every person's body responds differently, and sustainable results take time. Many patients notice improvements in energy and overall wellbeing within the first few weeks. Body composition changes typically become apparent over several months. We focus on lasting transformation, not rapid weight loss that rebounds.
We accept most major insurance plans for medical weight management services. Coverage varies by plan and may depend on your specific health conditions. Our team can help verify your benefits and explain any out-of-pocket costs during the scheduling process.
Your initial consultation is a comprehensive 60-minute visit where we review your complete health history, discuss your goals and challenges, perform necessary measurements, and order appropriate lab work. You'll leave with a clear understanding of next steps and what to expect from your personalized program.
Standard weight management typically begins with caloric restriction and basic blood work. A functional approach starts with comprehensive testing — full thyroid panels, insulin sensitivity markers, inflammatory markers, nutrient status, and gut health assessment — to identify the specific metabolic factors affecting you. This allows us to build a plan that targets root causes rather than just managing the number on the scale.
Emerging research increasingly supports a connection between gut microbial composition and body weight regulation. Studies show that obese individuals often have reduced microbial diversity and altered bacterial populations that may influence calorie extraction, fat storage signaling, and systemic inflammation. While the science is still evolving, addressing gut health is an important component of a comprehensive metabolic approach.
When medically appropriate, we may prescribe FDA-approved GLP-1 medications as part of a comprehensive plan. However, we don't view any single medication as a standalone solution. These are most effective when combined with metabolic optimization, hormone balancing, nutritional support, and lifestyle modifications tailored to your unique biology. We'll discuss whether this is appropriate for your situation during your consultation.
Standard lab reference ranges are designed to identify disease, not optimize health. For example, the standard TSH range is 0.5–4.5 mU/L, yet research suggests that 95% of healthy individuals fall below 2.5. Similarly, vitamin D levels above 20 ng/mL are considered "sufficient," while some practitioners use functional ranges of 50–80 ng/mL. We use these narrower, evidence-informed ranges to catch subtle imbalances before they become clinical problems.
Ready for a Different Approach?
Schedule your complimentary discovery call and find out if our medical weight management program is right for you. No pressure, no obligation—just a conversation about your goals.
Schedule Free ConsultationOr call us directly: (212) 644-9100