Nancy Mazarin, Certified Nutritionist & Registered Dietitian Long Island NY

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...

05/29/2025

If you are struggling with binge eating, you’re not alone. As a Registered Dietitian Nutritionist based on Long Island, I have spent more than 30 years helping individuals recover from Binge Eating Disorder (BED).

Recovery is not about willpower—it requires compassionate, evidence-based strategies and support from a dietitian who specializes in BED: https://ow.ly/M0tw50VUy4n

05/19/2025

With the right nutrition plan, leaky gut symptoms can often be reversed. Learn more in my latest blog: https://ow.ly/bWGu50VUy3W

04/24/2025

How Diet Affects the Brain and Neurological Diseases – A discussion about brain health and nutrition in my latest blog. Thanks for reading! https://mazarinrd.com/how-diet-affects-the-brain-long-island-dietitian-nutrition-plan/

04/14/2025

As a dietitian nutritionist with over 30 years of experience working with patients, I closely follow the latest medical advancements and evidence-based research. One of the most common topics I’m asked about is weight loss medication. Learn more in my latest blog post Q & A: https://mazarinrd.com/weight-loss-medication-faq-with-long-island-dietitian-nutritionist/

04/01/2025

How does your nutrition and gut health affect overall wellness? Learn more in my latest blog: https://ow.ly/XlRK50VmYGX

03/26/2025

Dysbiosis is connected to both physical and mental health disorders. How to prevent, manage, and treat with medical nutrition therapy: https://ow.ly/Brww50VmYE3

03/24/2025

Understand how the gut microbiome impacts overall health from a Long Island dietitian. Identify symptoms of an unhealthy gut microbiome and dysbiosis. Improve wellness and reset your gut microbiome with medical nutrition therapy: https://mazarinrd.com/how-the-gut-microbiome-impacts-overall-health-long-island-dietitian

Long Island registered dietitian explains the link between endocrine-disrupting chemicals and fatty liver disease. Tips to improve liver health include eliminating endocrine-disrupting chemicals like tea bags, plastics, burned and smoked foods, and more. Prevent, manage, and reverse fatty liver dise...