516-466-4279• Email Nancy
Nancy Mazarin - Registered Dietitian Nutritionist (RDN)
NYS Certified Dietitian-Nutritionist (CDN)
Long Island, Queens, New York & Nationally Online
  • AboutAbout Nancy Nancy Mazarin is a Registered Dietitian (RD) and Certified Nutritional Specialist (CNS) with a Master’s Degree in Nutrition from Columbia University. She is also a Certified Dietitian Nutritionist (CDN) in the State of New York. Nancy’s career path has always been in the science field, starting as a researcher at the Albert Einstein College of Medicine. Her love of science, combined with her interest in nutrition, eventually led her to pursue her Master’s Degree. In her endeavors, Nancy has worked as a medical nutrition consultant for hospitals and physicians, taught college-level courses and reviewed scholarly nutrition education articles. Nancy has worked with hundreds of patients, helping them to understand the ever-changing science of nutrition and create programs that are tailored to their own health goals. Included in these individualized plans are education, meal planning and behavior modification. As a food and nutrition expert, Nancy translates the science of nutrition into practical everyday solutions. DEGREES B.A. with a major in biology M.S. in nutrition from Columbia University R.D. from the American Dietetic Association CNS: Certified Nutrition Specialist (American College of Nutrition) CDN: Certified Dietitian Nutritionist (New York State certification) MEMBERSHIPS American Dietetic Association Diabetes Care and Education practice group…
    • About Nancy
    • Concierge Nutrition Counseling
    • Reviews
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    • What is the difference between a dietitian and a nutritionist?
  • Holistic Nutritionist
  • Medical Nutrition TherapyMedical Nutrition Therapy Food is the fuel for your body and the cornerstone of your health. When you face medical issues that challenge your well-being, proper nutrition can be a powerful tool to restore your health. Medical Nutrition Therapy is an essential part of your comprehensive health care, enabling you to optimize health and well being. Patients with medical issues are usually referred to Nancy by physicians or hospitals. Nancy works with your doctor using an integrative approach to understand your medical needs. She translates research into practice and develops an intervention plan. At the initial consultation, Nancy evaluates your medical history, diet, habits, and lifestyle to determine when, where and how to modify your nutrition plan to achieve lifelong health. Your customized eating program will include: • Nutrition Education • A personalized meal plan that incorporates simplicity and flexibility • recommendations for specific foods and patterns of food choices to match your unique health needs Some of the medical issues Nancy has addressed through Medical Nutrition Therapy include: GASTROINTESTINAL DISORDERS: Crohn’s and Colitis; Irritable Nowel Syndrome; Diarrhea or Constipation; Celiac Disease/Gluten Sensitivity; GERD/Heartburn; Diverticular disease CARDIOVASCULAR/HEART HEALTH: Cholesterol; Triglycerides; Hypertension; Congestive Heart Failure ENDOCRINOLOGY: Diabetes Mellitus; Pre Diabetes; Hypoglycemia; Fatty…
    • Diabetes & Endocrine Issues
    • Cardiovascular/Heart Health
    • Fatty Liver Disease
    • Food Allergy – Sensitivity – Intolerance
    • Gastrointestinal/Digestive Disorders
    • SIBO & IBO
    • Renal Disease
    • Binge Eating
    • Geriatrics
  • Weight ManagementWeight Management Therapy Reaching and maintaining a healthy weight is a challenge for many people. One-size-fits-all programs are unrealistic, rarely result in weight maintenance and can be detrimental to good health. Success comes from sustained changes in eating that become incorporated into your daily routine. Your initial consultation with Nancy will allow her to: Assess your dietary needs and current eating practices. Understand your home, work and social environment. Identify what areas need improvement and where good choices and habits already exist. You will work together to develop a personalized plan with specific foods and patterns of food choices. You will be given the tools to promote positive behavior changes. *You do not need to eating special foods to lose weight *You do not need to be restrictive and deprived to lose weight *You do not need to be perfect to lose weight *You do not need to eat differently from your family or friends to lose weight Healthier food choices, blended with behavior changes and sound nutrition information will guide you to your optimal weight and health. Your action plan will: Set realistic and sustainable goals Analyze your dietary needs Get to the root of your food issues Provide…
    • Weight Gain
    • Weight Loss
  • Specialty Diets
    • Anti Inflammatory Diet
    • Dairy Free – Lactose Intolerance
    • Elimination Diet
    • FODMAP
    • Celiac / Gluten Free Diet
    • Plant Based Plans
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  • Homecontact info is 935 Northern Boulevard; Suite 301; Great Neck, NY 11021 516-466-9087 nmeatrite@mazarinrd.com Contact Info-On every page This will be on every page in a sidebar Nancy Mazarin, MS, RD, CDN Medical Nutrition Consultant like this on each page as a side bar   Sidebar widget: Nancy Mazarin is a Nutritional Consultant with a private practice in Great Neck, NY. With more than thirty years experience, Nancy employs practical nutritional tools to create long-term solutions. With her help, you can build a personalized program to improve your health, enhance your quality of life, achieve optimal weight goals, and address medical issues. • Are you struggling with weight issues? • Do you have a history of weight cycling? • Have you been diagnosed with medical conditions such as Diabetes, Cardiovascular disease, Hypertension, Reflux or Irritable Bowel Syndrome? • Has your energy and quality of life diminished? • Are you ready to feel better and become the best YOU? Nancy Mazarin is a Nutrition Consultant with a private practice in Great Neck, NY. She has practical every day solutions from over 30 years of working with doctors, patients and a full spectrum of medical conditions. She can help you (in bold): Pinpoint…
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human-microbiome
Blog, Gastrointestinal - Digestive Disorders, Health & Nutrition

The Human Microbiome

  Each human body has a unique array of microorganisms, collectively called the “microbiota”. There may be 1000 different species and over 100-fold more genes that are in the human genome.  Studies have demonstrated a symbiotic…
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April 4, 2018
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Blog, Cardiovascular - Heart Health

Cardiovascular Disease – What YOU Can Do

  Cardiovascular disease encompasses a broad spectrum including stroke, coronary artery disease, heart failure, and cardiac arrest.  The majority of cardiovascular-related disease is not restricted to the heart, but rather is of the…
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March 21, 2018
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Blog, Cancer

Cancer Risks

  Excess body weight may be as dangerous as smoking when it comes to cancer.   Recently published reviews report that excess body fatness raises the risk of at least 14 kinds of cancer: Brain/Meningioma Breast Blood/Multiple…
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March 21, 2018
https://mazarinrd.com/wp-content/uploads/2018/03/cancer-risk-factors.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2018-03-21 11:36:382020-07-23 09:56:07Cancer Risks
Blog, Health & Nutrition

The Benefits of Omega-3 Fatty Acids in Your Diet

  You may have heard that omega-3 fatty acids are good for your health, but did you know that they can actually help you lower your risk of death? According to a study that was recently featured in the Journal of Clinical Lipidology,…
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March 15, 2017
https://mazarinrd.com/wp-content/uploads/2017/03/omega-3.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2017-03-15 17:33:042020-07-22 16:33:46The Benefits of Omega-3 Fatty Acids in Your Diet
Blog, Cardiovascular - Heart Health

Heart Disease is the #1 Killer of Women

  Heart disease is a woman’s disease:  1 in 4 will die in the U.S. from heart disease this year that is half a million deaths each year – yet the perception that heart disease is primarily a man’s disease persist. The reality…
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February 16, 2017
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Blog, Health & Nutrition

Saturated Fat: What is the True Story? Part 2: Answers and Conclusion

  We have the answers to these questions, kept in the shadows impressively well by the peddlers of pepperoni and bacon. The range of saturated fat intake examined is pretty narrow. In the first meta-analysis, the top and bottom…
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January 18, 2017
https://mazarinrd.com/wp-content/uploads/2017/01/saturated-fat.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2017-01-18 12:50:382020-07-22 16:35:41Saturated Fat: What is the True Story? Part 2: Answers and Conclusion
Blog, Health & Nutrition

Saturated Fat: What is the True Story? Part 1: Research and Questions

  For decades the American public has been warned that eating saturated fat, the type found in meat and processed foods, can lead to heart disease.  Now there is a booming cottage industry peddling the argument that saturated fat is…
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January 16, 2017
https://mazarinrd.com/wp-content/uploads/2017/01/saturated-fat.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2017-01-16 12:44:282020-07-22 16:36:58Saturated Fat: What is the True Story? Part 1: Research and Questions
Blog, Cardiovascular - Heart Health, Health & Nutrition

Calcium Cleared

  “Calcium supplements could increase risk of heart disease, new study finds” said a Washington Post headline in October. “Calcium supplements could give you a heart attack,” wrote the New York Daily News. Researchers at Johns…
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December 12, 2016
https://mazarinrd.com/wp-content/uploads/2016/12/clacium-cleared.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2016-12-12 14:54:512020-07-23 10:01:55Calcium Cleared
Blog, Health & Nutrition, Weight Loss

Biggest Loser and the Misrepresentation of Weightloss

NANCY MAZARIN, MS, RDN, CDN 891 Northern Boulevard Great Neck, New York 11021 516-466-9087 BIGGEST LOSER – a misleading report The grim message from the recent New York Times article is that dieting is futile and re-gain is all but pre-ordained.…
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July 5, 2016
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Blog, Health & Nutrition

The New Dietary Guidelines (2016)

The U.S. Department of Health and Human Services just released the dietary guidelines for 2015–2016.  The nation’s “best and brightest nutrition experts”, who pored over the scientific evidence, made the following recommendations: Healthy…
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April 7, 2016
https://mazarinrd.com/wp-content/uploads/2016/04/dietary-plan.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2016-04-07 11:24:382020-07-22 16:39:56The New Dietary Guidelines (2016)
Blog, Health & Nutrition

Soy – A Perfect Food?

THE SOY HYPE IS RIGHT. In the last few years, we are constantly reading about the seemingly endless benefits of soy products. When a food is touted in every health and nutrition column, in newspapers, magazines, and the internet, the extravagant…
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January 11, 2016
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Blog, Weight Loss

To Diet or Not to Diet, That is the Question

The importance of good nutrition and a healthy weight continue to be acknowledged as a key component for disease prevention and health promotion. Though maintaining an optimal weight is as important as the nutrients selected, it is considerably…
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December 11, 2015
https://mazarinrd.com/wp-content/uploads/2015/12/weight.jpg 300 680 Nancy Mazarin https://mazarinrd.com/wp-content/uploads/2025/03/NancyMazarin-2-1030x281.png Nancy Mazarin2015-12-11 11:17:122020-09-03 11:50:50To Diet or Not to Diet, That is the Question
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  • Geriatrics
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Amy Pedolsky profile picture
Amy Pedolsky
17:02 26 Dec 22
Over the past six months that I have been seeing Nacny, she has been very helpful in hepling me lose 31 pounds. She understands very aspect of what I needed and how to accommidate them properly. With Nancy's help I have been able to change my lifestyle, eat healthier and change and treat my medical conditions very differently and for the best. I would highly reccommanded Nancy to anyone that has tried diets before and has not succeded and who has a lot of different medical conditions that make it difficult to know what to eat and what not to eat.
Michael Maino profile picture
Michael Maino
21:11 17 Dec 22
I was hesitant at first to start seeing a nutritionist. I was very comfortable with my poor eating habits despite being upset about my weight; however I knew I needed to make a change.

Nancy was very understanding from the start. Before meeting with Nancy, I had been in a constant cycle of over-restricting myself to lose weight rapidly, followed by binge eating and gaining it all back plus some more.

Over the past year and a half, Nancy has helped me discover normal eating. She helped me understand my hunger and my fullness in addition to helping me choose better food options.

Nancy is very dedicated to working with you and helping you achieve your goals. She doesn’t just help you reach your goals — she helps you change your perspective of food and eating for the better. What you learn with Nancy is not temporary — you will carry it with you and practice it throughout your life.

I have lost almost 70 pounds since first meeting with Nancy and continuing on my journey. I highly recommend working with her.

Nancy, thank you for all of your help!
Carol Vogt profile picture
Carol Vogt
21:38 12 Dec 22
Although I was unlucky when I developed some health issues, I was very lucky to find Nancy Mazarin, a skilled, intelligent, caring nutritionist. I saw lots of doctors but she was the one who came up with the diagnosis that finally led to my improved health. She was always available when I had questions and was even willing to meet with me one weekend when I was struggling.
Bonnie Eisler profile picture
Bonnie Eisler
00:22 03 Dec 22
Nancy has been wonderful to work with. She is extremely knowledgeable about nutrition, and very intuitive in identifying and removing roadblocks her clients may be experiencing on their way to achieving their goals. Nancy is extremely organized and promptly keeps her appointments. I highly recommend her!
richard markx profile picture
richard markx
02:55 11 Oct 22
Absolutely knowledgeable compassionate and very personable!
Anyone wishing to improve their health through nutrition and education will find Nancy Mazarin incredibly helpful Thank you for all your help Nancy!
  • Concierge Nutritionist
  • Holistic
  • Medical Nutrition Therapy
  • Cardiometabolic
  • Diabetes
  • Cardiovascular / Heart Health
  • Renal / Kidney
  • Liver Disease/Fatty Liver
  • Gastrointestinal /Digestive disorders
  • Irritable Bowel Syndrome
  • Inflammatory Bowel Disease
  • Celiac Disease/Gluten Free Diets
  • SIBO
  • Diarrhea/Constipation
  • GERD

  • FODMAP Diets
  • Elimination Diets
  • Dairy or Lactose free
  • Food Allergy / Sensitivity / Intolerance
  • Anti-Inflammatory Plans
  • Auto Immune Disorders
  • Plant Based / Vegan / Vegetarian
  • Weight Management
  • Weight Loss
  • Weight Gain
  • Disordered Eating / Dysfunctional Eating
  • Binge Eating Disorder
  • Geriatrics/Elderly
© Copyright | All Rights Reserved. | Nancy Mazarin NYS Certified Dietitian Nutritionist (CDN) & Registered Dietitian Nutritionist (RDN) on Long Island, Queens, New York & Online
11 Glenwood Drive Great Neck, NY 11021 United States - 516-466-4279
Works with patients from: Nassau County, Great Neck, Suffolk County, Queens, North Shore, Locust Valley, Port Washington, Glen Cove, Oyster Bay, Cold Spring Harbor, Huntington, Manhasset, Brookville, Syosset, Woodbury, Roslyn, Hicksville, East Hills, Long Island
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