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Comprehensive Assessment
In-depth evaluation of medical history, labs, body composition, lifestyle, and goals.
Concierge Medical Nutrition Therapy · Boston & New York
Private, one-on-one concierge care alongside your prescriber and GLP-1.
Alexis Beck, MPH, RD, LDN · Since 2010 · Boston & New York · Virtual
Why this is different
A GLP is not a treatment plan. Most patients get the prescription and nothing else: no nutrition strategy, no metabolic work.
You did not plateau. You were never actually treated.
Talk to Our Care Team
Your starting point
NutritionRx has spent
25
years treating medical obesity, one patient at a time
What is actually missing
Labs, body composition and your history first. You cannot treat what nobody measured.
A full hour with Alexis, not a ten-minute check-in and a refill.
The months after decide whether it lasts, so they get a protocol too.
Most patients stay for years. A program ends on a schedule. This does not.
A Note from Alexis
Weight loss is a goal you set. Medical obesity is a condition of metabolic regulation, and it has to be treated. Medication alone will not do it.
Every patient here receives the assessment I wish I had been given twenty years ago.
Alexis Beck
MPH, RD, LDN · Founder of NutritionRx
In her words
The same argument, in her voice: what medical obesity actually is, and why treating it looks nothing like a weight-loss program with a prescription attached.
★★★★★
In a mere two months, Alexis turned my entire life around. Her innate ability to understand people and approach to therapy is unlike anyone else.
Rated 5.0 on Google
A Proprietary, Physician-Adjacent Framework For
Obesity Treatment. Metabolic Health.
Sustainable Weight Optimization & Wellness
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In-depth evaluation of medical history, labs, body composition, lifestyle, and goals.
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Identify the biological, hormonal, metabolic, and lifestyle drivers impacting weight and health.
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A tailored plan that may include nutrition, medications, nutrients, behavioral strategies, and lifestyle optimization.
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Curated Medical Nutrition Therapy (MNT). Your Journey, fully personalized to each phase of your journey.
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Continuous monitoring and data-driven adjustments to maximize results and metabolic regulation.
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Sustainable strategies that evolve with you to Maintain results and Stabilize lifelong metabolic regulation.
NutritionRx
Science. Personalization. Partnership.
A curated, sequential approach designed to restore metabolic function, optimize health, and deliver lasting results.
The foundation
Targeting the underlying biology to restore metabolic function, hormonal balance, and energy utilization.
Evidence-based MNT methodology tailored to your physiology, preferences, and goals to fuel healing, performance, and vitality.
As Featured In & Recognized By
From the journal

Obesity is a chronic condition rooted in metabolic dysregulation, not a behavioral failure. Understanding the biology is the first step toward treating it like the medical disease it is.
Read on the journal
A look at how GLP-1 medications work, who they are appropriate for, and why they require coordinated medical nutrition therapy to deliver sustained results.
Read on the journal
Coming soon
A clinician’s walkthrough of what metabolic regulation actually means, why it is the central goal of the practice, and how patients experience it across the three phases of care.
In the editorBy application only
Every prospective patient is reviewed personally by Alexis. If NutritionRx is the right fit, you’ll be told that. If it isn’t, you’ll be told that too.
Talk to Alexis RD →Have Questions?
NutritionRx is private pay. We provide the documentation many patients use for partial out of network reimbursement.
Yes. We work alongside your prescriber to protect muscle, optimize protein and help the medication do what it is supposed to do.
Sessions are held through secure telehealth, from our virtual offices in Boston and New York.
Medical obesity, GLP-1 medication integration, menopausal weight changes, metabolic syndrome, chronic weight gain and disordered eating.