Nancy Mazarin, Certified Nutritionist & Registered Dietitian Long Island NY

04/28/2026

Your diet significantly impacts bone health. It’s not just about what foods you need to eat, but also which foods should be limited:

When people think about bone health, it’s common to reach for a glass of milk or a calcium supplement combined with vitamin D. Bone health, however, doesn’t come from just two nutrients in isolation. It’s about overall dietary patterns—and, when appropriate, supplementation. That is a bone-h...

04/24/2026

Many people use the terms “dietitian” and “nutritionist” interchangeably. Though all Registered Dietitians (RD/RDN) are nutritionists, not all nutritionists are dietitians.
Dietitians and nutritionists are distinct professions. Learn more in my recent blog: https://mazarinrd.com/should-i-see-a-dietitian-or-nutritionist-to-lose-weight/

04/20/2026

What is IBS and what is the best diet? Learn more in my recommendations to manage and resolve Irritable Bowel Syndrome:
https://mazarinrd.com/what-is-the-best-diet-for-ibs-long-island-dietitian-tips/

03/28/2026

Consistent blood glucose control not only reduces the risk of major complications but also improves quality of life. Diabetes management, however, can feel confusing and overwhelming. Tips to manage your blood glucose in my latest blog:

Online diabetes nutrition care from a Long Island dietitian. Discover evidence-based tips to manage blood glucose and build sustainable eating habits.

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.