My role is to provide structured, individualized nutrition support that reinforces your recommendations while helping patients build sustainable habits outside the exam room.
Nutrition is often the missing piece in reaching long-term goals, especially for patients managing metabolic conditions, cardiovascular risks, GLP-1 medications, or chronic disease.
I partner with physicians & healthcare providers to deliver thoughtful, evidence-based nutrition care that supports your treatment plan and offers patients deeper guidance for long-lasting results.
A registered dietitian you can refer with confidence
My common referral areas include:
- Weight management (including GLP-1 support) & obesity
- Type 2 diabetes & prediabetes
- Cardiometabolic health & hypertension prevention
- Nutrient deficiencies
- Fatigue or low energy
- Stress & lifestyle balance
- Insulin resistance
- Long-term lifestyle support for high-risk patients
- Disordered eating, amenorrhea
- Alcohol & nicotine reduction/cessation support
- Food shopping & food prep (Manhattan clients only)
Primary care physicians
Endocrinologists
Cardiologists
OB/GYNs
Dentists
Mental health professionals
Who I partner with
Areas of Focus
Patients seeking extreme dietary protocols or quick-fix plans may not be a good fit for this practice.
I’m a great fit for both men & women who:
- Want more structured nutrition advice
- Need ongoing accountability
- Are starting or currently taking GLP-1 medications
- Have complex metabolic concerns
- Struggle or have struggled with managing disordered eating
- Are motivated but need deeper support
- Want to learn about healthy aging & longevity
Ideal client Fit
- Served as an Acute Care and ICU Clinical Dietitian at a major hospital
- Educated physicians and residents on nutrition protocols in critical care
- Holds a Bachelor of Science in Criminal Justice from Rochester Institute of Technology
- Background in criminal justice supports a strong analytical and advocacy-driven mindset
- Served C-suite leaders as clients, translating biometric insights—HRV, sleep, glucose, and activity—into personalized nutrition strategies that improved metabolic resilience, stress regulation, and long-term habit formation.
Experience
- New York University → Master of Science in Clinical Nutrition
- NYU Dietetic Internship → 1200+ supervised clinical hours
- ACE Certified Personal Trainer
- ACE Behavior Change Specialist
- NY State Certified Dietitian Nutritionist
- Integrative & Functional Nutrition Certified Practitioner (IFNCP)
Credentials
A little about me
Karen Grecea, MS, RD, CDN, IFNCP
Please send your request to info@healthbyhabit.net
Interested in having me write a guest article or attend a speaking event?
Nutrition isn’t one-size-fits-all, and sustainable progress doesn’t come from generic or surface-level insights. If you’re looking for a registered dietitian who delivers science-backed care grounded in real life, I’m here to help.
