Nancy Mazarin, Certified Nutritionist & Registered Dietitian Long Island NY

01/20/2026

Every January, I see the same pattern: big goals, strict rules, and diets that promise fast results—but rarely deliver lasting change. A truly healthy New Year’s resolution isn’t about restriction or chasing a number on the scale. It’s about building a healthful program to attain and sustain your optimal weight, manage medical conditions, and promote long-term health.

So, what can you do to manage chronic conditions, support gut health, and work toward sustainable weight loss goals?

10 realistic, holistic, dietitian-approved resolutions in my latest blog:

Dietitian Nancy Mazarin, RDN shares 10 realistic holistic nutrition resolutions focused on balance, real food, and long-term health—not dieting. Manage diabetes, CKD, fatty liver disease, and gut health. Reach weight loss goals with sustainable habits and an individualized nutrition plan.

01/13/2026

There are three things you can do—starting today—to improve your overall wellness and your relationship with food and your body: https://mazarinrd.com/how-to-lose-weight-sustainably-in-the-new-year-dietitian-tips/

11/06/2025

What is the Best Diet for Vegetarians? Details and tips in my latest blog - thanks for reading!

Get support from a Long Island RDN to implement or transition to a vegetarian or vegan diet plan. Online nutrition therapy for vegetarians and vegans can ensure you get all the nutrients to support your eating plan, including supplements.

10/31/2025

Menopause and Weight Gain: A Women’s Health Dietitian Provides Tips for Weight Management
https://mazarinrd.com/menopause-and-weight-loss-weight-gain-long-island-rdn/

10/01/2025

Myths and facts about carbs and weight loss in my latest post:

A Long Island weight loss dietitian discusses how to eat carbs and lose weight. Understand carb myths and facts. Improve wellness and prevent chronic disease and cancer with an individualized diet plan and online nutrition therapy from a weight loss nutritionist in New York.

09/09/2025

While Chronic Kidney Disease cannot be cured, nutrition interventions can reduce progression, improve quality of life, and may even extend life expectancy. Learn more about CKD in my latest blog: https://ow.ly/k7ye50WTQVH

08/11/2025

What does medical nutrition therapy for cardiovascular health involve?

Improve your heart health with a Long Island Nutritionist, expert in cardiovascular disease. Implement a healthy diet plan, improve eating habits, and get support with evidence-based practices from a dietitian nutritionist and online medical nutrition therapy.

07/25/2025

Losing weight can feel confusing and frustrating. But when you understand the obstacles—whether they’re dietary, behavioral, or emotional—you can put sustainable strategies into place. For over 30 years, I’ve helped patients improve their health, reach their ideal weight, and maintain it long term.

Get practical, evidence-based weight loss tips from a Long Island Dietitian. Build healthy habits, lose weight, and keep it off with online medical nutrition therapy.

07/18/2025

What is fatty liver disease and how do you treat it? Learn more in my latest blog: https://ow.ly/4SSB50WrBqp
Thanks for reading!

Prevent and even reverse fatty liver disease with help from a Long Island Dietitian. Online medical nutrition therapy provides a custom plan to reduce liver fat, support weight loss, and improve wellness.

06/30/2025

Why Implement an Anti-Inflammatory Diet? Eating with intention can improve chronic conditions, extend lifespan, and even slow aging. As food as medicine suggests, what you eat has the power to heal. Benefits of maintaining an anti-inflammatory diet include: https://ow.ly/GWXo50Wa0nV

06/17/2025

In my blogs over the past several months, I discussed how a healthy microbiome affects gut health and influences numerous aspects of health such as digestion, immunity, metabolism, and even brain function. How does the microbiome affect obesity? Learn more in my latest blog. Thanks for reading! https://ow.ly/uOWy50Wa0g0

06/05/2025

If you are using prescription medication as part of a weight loss plan, nutrition therapy is essential in attaining and sustaining your optimal weight:

How to treat patients on weight loss medication involves support from a dietitian nutritionist. Outpatient, online medical nutrition therapy from a Long Island RDN can help patients achieve sustainable weight loss. Change eating behaviors and habits to lose weight and improve wellness, chronic disea...