Nancy Mazarin, Certified Nutritionist & Registered Dietitian Long Island NY

06/08/2026

Food is not “good” or “bad.” It exists on a spectrum from least healthy to healthiest. Carbohydrates are essential for health. The key issue is the type of carbohydrates you choose. Learn the truth about carbs: https://lnkd.in/eBTjBQQD

05/27/2026

The numbers are alarming. Colorectal cancer rates are at an all-time high, and The Cancer Research Institute reports that “1 in 5 diagnoses occurs in someone under the age of 55.”� Learn more in my latest blog:

Discover the best diet to help prevent colon cancer with a Long Island dietitian’s evidence-based guide. Learn how high-fiber foods, plant-based proteins, and limiting processed foods can significantly lower your risk. Improve digestive health and reduce inflammation with expert nutritional insigh...

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/