Gastrointestinal (GI) Nutritionists and Dietitians in Stony Brook, NY

Photo of Barbara Ann Grova, Nutritionist/Dietitian, INHC, AADP
Barbara Ann Grova
Nutritionist/Dietitian, INHC, AADP
Serves Area
I have over 20 years experience in womens hormonal health, weight loss, anxiety and nutrition. I am a 9 year Breast Cancer survivor, treating my stage 2 holistically. I help Survivors recover and prevent reoccurrence. Together we uncover the root cause of your health condition. I will give you a nutrition and lifestyle protocol so your body can heal naturally without medication. I teach you my life’s challenges coping skills. My clients lose an average of 12-15 lbs on my on-line program. I love and support you through every step, holding your hand until you’re ready to flourish on your own! I am very caring, dedicated, compassionate
I have over 20 years experience in womens hormonal health, weight loss, anxiety and nutrition. I am a 9 year Breast Cancer survivor, treating my stage 2 holistically. I help Survivors recover and prevent reoccurrence. Together we uncover the root cause of your health condition. I will give you a nutrition and lifestyle protocol so your body can heal naturally without medication. I teach you my life’s challenges coping skills. My clients lose an average of 12-15 lbs on my on-line program. I love and support you through every step, holding your hand until you’re ready to flourish on your own! I am very caring, dedicated, compassionate
(516) 530-7955 View (516) 530-7955
Photo of Renee M Barbis - R.M.B. Health~Rejuvenating Mind & Body, Nutritionist/Dietitian, CHHC, AADP
R.M.B. Health~Rejuvenating Mind & Body
Nutritionist/Dietitian, CHHC, AADP
Serves Area
I offer an anti-inflammatory detox program in order to jump start weight loss, clear up asthma, arthritis, digestive disorders (IBS), skin conditions, and overall well being.
I primarily work with women from the ages of 21-45 who are struggling with depression, anxiety, fertility issues, life issues, and unhappiness. While working together we are able to find an individualized plan that will suit your needs. We will use foods, handouts, cooking demonstrations, goals, and other healing techniques to assist you in becoming the person you always dreamed you could be!
I offer an anti-inflammatory detox program in order to jump start weight loss, clear up asthma, arthritis, digestive disorders (IBS), skin conditions, and overall well being.
I primarily work with women from the ages of 21-45 who are struggling with depression, anxiety, fertility issues, life issues, and unhappiness. While working together we are able to find an individualized plan that will suit your needs. We will use foods, handouts, cooking demonstrations, goals, and other healing techniques to assist you in becoming the person you always dreamed you could be!
(631) 240-0721 View (631) 240-0721
Photo of Cristina Rivera - Nutrition in Motion, P.C., Nutritionist/Dietitian, MS, RD, CSSD, CDN, CEDS-C
Nutrition in Motion, P.C.
Nutritionist/Dietitian, MS, RD, CSSD, CDN, CEDS-C
Online Only
The Registered Dietitians at Nutrition in Motion, P.C. share a philosophy of using food to fuel, nourish and strengthen one's body. We treat each patient as an individual in order to collaboratively create a plan to reach the individual's goals. We believe in the use of behavior modification in conjunction with nutrition counseling, rather than attempting to follow an unsustainable diet. This helps clients make more attainable and enduring lifestyle changes. All foods can have a place as a part of a healthy lifestyle, and we are here to help you make them fit.
The Registered Dietitians at Nutrition in Motion, P.C. share a philosophy of using food to fuel, nourish and strengthen one's body. We treat each patient as an individual in order to collaboratively create a plan to reach the individual's goals. We believe in the use of behavior modification in conjunction with nutrition counseling, rather than attempting to follow an unsustainable diet. This helps clients make more attainable and enduring lifestyle changes. All foods can have a place as a part of a healthy lifestyle, and we are here to help you make them fit.
(631) 528-2139 View (631) 528-2139

More Dietitians and Nutritionists Nearby

Photo of Molly Ostrander - Molly Ostrander | Women's Gut & Hormone Health, Nutritionist/Dietitian, MS, RDN LDN, IFNCP
Molly Ostrander | Women's Gut & Hormone Health
Nutritionist/Dietitian, MS, RDN LDN, IFNCP
Online Only
GI care often becomes trial and error, which makes symptoms hard to interpret without guidance.
Are you a high-functioning woman 35+ whose digestion has gotten annoyingly unpredictable? Bloating shows up out of nowhere. IBS patterns shift. Hormonal changes make your “usual fixes” stop working. You’ve tried elimination diets and supplements that promised clarity and delivered... nothing. You want a structured, evidence-based plan to stabilize digestion, support hormone-related symptoms, and eat without constant second-guessing. I’ve lived with Crohn’s disease for more than three decades. That perspective informs a clinical approach focused on discernment and durable results, not generic advice or trend-driven protocols.
GI care often becomes trial and error, which makes symptoms hard to interpret without guidance.
Are you a high-functioning woman 35+ whose digestion has gotten annoyingly unpredictable? Bloating shows up out of nowhere. IBS patterns shift. Hormonal changes make your “usual fixes” stop working. You’ve tried elimination diets and supplements that promised clarity and delivered... nothing. You want a structured, evidence-based plan to stabilize digestion, support hormone-related symptoms, and eat without constant second-guessing. I’ve lived with Crohn’s disease for more than three decades. That perspective informs a clinical approach focused on discernment and durable results, not generic advice or trend-driven protocols.
(718) 550-3694 View (718) 550-3694
Photo of Sara Ryba Matty, Nutritionist/Dietitian, RD, CDN
Sara Ryba Matty
Nutritionist/Dietitian, RD, CDN
1 Endorsed
Hicksville, NY 11801
2)Medical Nutrition Therapy for conditions such as; diabetes, autoimmune diseases, gastrointestinal issues.
My ideal client is an individual that wants to partner with me to set goals and accomplish them together! Whether you want eat healthier, lose weight, tackle a medical issue or a combination of all of them, my job is to put my client at ease and guide them to success. I value the relationships and bonds that are create between me and my clients. Food is a very intimate, cultural, personal issue; and in many ways ends up encompassing almost areas of lives. I thrive off of the trust that my clients and I build together and our ultimate victories, both large and small.
2)Medical Nutrition Therapy for conditions such as; diabetes, autoimmune diseases, gastrointestinal issues.
My ideal client is an individual that wants to partner with me to set goals and accomplish them together! Whether you want eat healthier, lose weight, tackle a medical issue or a combination of all of them, my job is to put my client at ease and guide them to success. I value the relationships and bonds that are create between me and my clients. Food is a very intimate, cultural, personal issue; and in many ways ends up encompassing almost areas of lives. I thrive off of the trust that my clients and I build together and our ultimate victories, both large and small.
(516) 588-7297 View (516) 588-7297
Photo of Stacy Seslowsky - Heal From Food , Nutritionist/Dietitian, RD, LDN, MS
Heal From Food
Nutritionist/Dietitian, RD, LDN, MS
Serves Area
Health & weight issues are most often related to gut, hormone, or immune imbalance.
Digestive, hormonal, cardiovascular, energy, mood, fertility, immune (thyroid, rheumatoid arthritis, multiple sclerosis, etc.). Online platform: I spend an extended amount of time learning about the many life factors that led you to the present time. Together, we will implement a personalized nutrition/behavior modification plan to transform your health.
Health & weight issues are most often related to gut, hormone, or immune imbalance.
Digestive, hormonal, cardiovascular, energy, mood, fertility, immune (thyroid, rheumatoid arthritis, multiple sclerosis, etc.). Online platform: I spend an extended amount of time learning about the many life factors that led you to the present time. Together, we will implement a personalized nutrition/behavior modification plan to transform your health.
(904) 899-4955 View (904) 899-4955
Photo of Jeanette Giacinto, Nutritionist/Dietitian, MS, RD, CDN
Jeanette Giacinto
Nutritionist/Dietitian, MS, RD, CDN
Online Only
Are you struggling with weight management, hormone balance, or uncomfortable gastrointestinal symptoms?
Our virtual 1:1 meetings are all about YOU. You'll have access to my online courses all about nutrition, wellness, gut health, and hormone health, a recipe library of over 200 recipes, and detailed food journal review. Unlike most practitioners, you have access to me in between sessions, so you don't have to wait 2 weeks to have your questions answered.
Are you struggling with weight management, hormone balance, or uncomfortable gastrointestinal symptoms?
Our virtual 1:1 meetings are all about YOU. You'll have access to my online courses all about nutrition, wellness, gut health, and hormone health, a recipe library of over 200 recipes, and detailed food journal review. Unlike most practitioners, you have access to me in between sessions, so you don't have to wait 2 weeks to have your questions answered.
(516) 774-1199 View (516) 774-1199
Photo of Marina Bedrossian, Nutritionist/Dietitian, RDN, CDN, CLT, FMN
Marina Bedrossian
Nutritionist/Dietitian, RDN, CDN, CLT, FMN
Online Only
If you're exhausted from trying every diet, supplement, and protocol without lasting relief - and you're ready to finally understand what your body is trying to tell you - you've found the right place.
If you're exhausted from trying every diet, supplement, and protocol without lasting relief - and you're ready to finally understand what your body is trying to tell you - you've found the right place.
(631) 816-2287 View (631) 816-2287
Photo of Erica Leon - Erica Leon Nutrition and Associates, Nutritionist/Dietitian, MS, RDN, CEDS
Erica Leon Nutrition and Associates
Nutritionist/Dietitian, MS, RDN, CEDS
Serves Area
If you struggle with an eating disorder, disordered eating, chronic dieting, or other health conditions, you have come to the right place. We believe that difficult relationships with food and body image are barriers to living life fully. We are passionate about helping our clients develop a positive relationship with food and body image through a weight-inclusive, individualized approach. We offer you a safe and non-judgmental space for healing,
If you struggle with an eating disorder, disordered eating, chronic dieting, or other health conditions, you have come to the right place. We believe that difficult relationships with food and body image are barriers to living life fully. We are passionate about helping our clients develop a positive relationship with food and body image through a weight-inclusive, individualized approach. We offer you a safe and non-judgmental space for healing,
(914) 455-0766 View (914) 455-0766
Photo of Abby Walker, Nutritionist/Dietitian, MS, RDN, CDN, CPT
Abby Walker
Nutritionist/Dietitian, MS, RDN, CDN, CPT
Serves Area
I know how exhausting it can be to feel trapped in a cycle of pain, bloating, digestive distress, inflammation, or food sensitivities.
Your health journey is deeply personal, and I’m here to support you every step of the way. If you’ve been struggling with digestive discomfort, thyroid imbalances, blood sugar issues, or challenges with weight, there is hope. Healing isn’t about restriction or willpower; it’s about understanding your body’s unique needs and giving it the nutrition it needs.
I know how exhausting it can be to feel trapped in a cycle of pain, bloating, digestive distress, inflammation, or food sensitivities.
Your health journey is deeply personal, and I’m here to support you every step of the way. If you’ve been struggling with digestive discomfort, thyroid imbalances, blood sugar issues, or challenges with weight, there is hope. Healing isn’t about restriction or willpower; it’s about understanding your body’s unique needs and giving it the nutrition it needs.
(516) 969-8564 View (516) 969-8564
Photo of Lisa Stollman, Nutritionist/Dietitian, MA, RDN, CDCES, CDN, CLT
Lisa Stollman
Nutritionist/Dietitian, MA, RDN, CDCES, CDN, CLT
1 Endorsed
Serves Area
I’m a registered dietitian nutritionist (RDN) specializing in weight management, diabetes, inflammation, and gastrointestinal health.
Together, we’ll create a plan that supports your health, fits your life, and helps you feel your best. We will work together to help you feel terrific. You will learn strategies to eat well for your unique nutrition needs. Optimal nutrition leads to better health and more gusto for life. It's a "win-win."
I’m a registered dietitian nutritionist (RDN) specializing in weight management, diabetes, inflammation, and gastrointestinal health.
Together, we’ll create a plan that supports your health, fits your life, and helps you feel your best. We will work together to help you feel terrific. You will learn strategies to eat well for your unique nutrition needs. Optimal nutrition leads to better health and more gusto for life. It's a "win-win."
(631) 364-0366 View (631) 364-0366
Photo of Jennifer Clemente, Nutritionist/Dietitian, MS, CNS, CDN, IFMCP
Jennifer Clemente
Nutritionist/Dietitian, MS, CNS, CDN, IFMCP
Online Only
My philosophy centers on one simple, powerful truth: the gut is the foundation of health.
As a functional medicine provider specializing in gut health, my approach offers a unique alternative by combining cutting-edge stool testing, deeper blood labs, and intestinal permeability testing with heart-centered coaching. Together, we'll find a path forward including the right diet for your unique needs plus targeted nutrients to help you heal.
My philosophy centers on one simple, powerful truth: the gut is the foundation of health.
As a functional medicine provider specializing in gut health, my approach offers a unique alternative by combining cutting-edge stool testing, deeper blood labs, and intestinal permeability testing with heart-centered coaching. Together, we'll find a path forward including the right diet for your unique needs plus targeted nutrients to help you heal.
(646) 679-7940 View (646) 679-7940
Photo of Angela Rein, Nutritionist/Dietitian, MS, CNS, LDN, CN-D
Angela Rein
Nutritionist/Dietitian, MS, CNS, LDN, CN-D
Serves Area
I specialize in Weight Loss/Management, Pre/Postnatal Nutrition, Cardiovascular Disease, Pre-diabetes, Diabetes, Vegan/Vegetarianism/Pescatarian Diets and Gastrointestinal Disorders.
I work with clients to develop customized, sustainable wellness plans that are realistic and easy to follow. In our first session, I take a deep dive into your personal health journey and provide a comprehensive and customized plan that addresses your specific health and lifestyle needs. Follow up sessions help support your goals, provide implemental steps in your journey and help hold you accountable. Clients enjoy knowing that they can email, call or text me anytime between office visits.
I specialize in Weight Loss/Management, Pre/Postnatal Nutrition, Cardiovascular Disease, Pre-diabetes, Diabetes, Vegan/Vegetarianism/Pescatarian Diets and Gastrointestinal Disorders.
I work with clients to develop customized, sustainable wellness plans that are realistic and easy to follow. In our first session, I take a deep dive into your personal health journey and provide a comprehensive and customized plan that addresses your specific health and lifestyle needs. Follow up sessions help support your goals, provide implemental steps in your journey and help hold you accountable. Clients enjoy knowing that they can email, call or text me anytime between office visits.
(914) 246-5732 View (914) 246-5732
Photo of Linda Arpino, Nutritionist/Dietitian, MA, RD, CDN, FAND
Linda Arpino
Nutritionist/Dietitian, MA, RD, CDN, FAND
Rye Brook, NY 10573
Expertise in weight management, diabetes, cholesterol and cardiac management, cancer prevention, gastrointestinal diseases (food sensitivities,IBS, crohn's, colitis, sports nutrition,and pregnancy related issues.
Linda Arpino practices evidence base nutrition fo chronic disease prevention and focuses on food as medicine. Food is increasingly becoming more expensive and new 2025-2030 dietary Guidelines have been published and can create more confusion. I provide clear simple strategies to enjoy a wide variety of foods with menus, grocery guides and recipes.
Expertise in weight management, diabetes, cholesterol and cardiac management, cancer prevention, gastrointestinal diseases (food sensitivities,IBS, crohn's, colitis, sports nutrition,and pregnancy related issues.
Linda Arpino practices evidence base nutrition fo chronic disease prevention and focuses on food as medicine. Food is increasingly becoming more expensive and new 2025-2030 dietary Guidelines have been published and can create more confusion. I provide clear simple strategies to enjoy a wide variety of foods with menus, grocery guides and recipes.
(914) 758-0789 View (914) 758-0789
Photo of Shana Maleeff - FoodandFitnessPro, LLC, Nutritionist/Dietitian, MA, RD, CDN
FoodandFitnessPro, LLC
Nutritionist/Dietitian, MA, RD, CDN
1 Endorsed
Hicksville, NY 11801
I also have 16+ years of experience working with diabetes, prediabetes, PCOS, high cholesterol, high blood pressure, fitness/sports nutrition, GI disorders, and more.
I use a proven formula in my meal plans and programs that results in weight loss, balancing blood sugars, increasing energy, and sleeping better. My program includes unlimited support and accountability, private online support group, metabolic testing, and body fat testing. These tools help me tailor your program.
I also have 16+ years of experience working with diabetes, prediabetes, PCOS, high cholesterol, high blood pressure, fitness/sports nutrition, GI disorders, and more.
I use a proven formula in my meal plans and programs that results in weight loss, balancing blood sugars, increasing energy, and sleeping better. My program includes unlimited support and accountability, private online support group, metabolic testing, and body fat testing. These tools help me tailor your program.
(516) 441-9013 View (516) 441-9013
Photo of Jessica Jaeger, Nutritionist/Dietitian, MS, RD, LD
Jessica Jaeger
Nutritionist/Dietitian, MS, RD, LD
2 Endorsed
Online Only
Are you ready to find joy in food again? Jessica helps clients struggling with food, exercise, and weight. If food preoccupies your thoughts, she can help. Jessica combines her expertise in disordered eating research with practical, real-life experience to guide her clients toward recovery.
Are you ready to find joy in food again? Jessica helps clients struggling with food, exercise, and weight. If food preoccupies your thoughts, she can help. Jessica combines her expertise in disordered eating research with practical, real-life experience to guide her clients toward recovery.
(516) 703-4921 View (516) 703-4921
Photo of Jillian Mergruen, Nutritionist/Dietitian, RD, CDN
Jillian Mergruen
Nutritionist/Dietitian, RD, CDN
3 Endorsed
Online Only
I am a registered dietitian based in New York City who specializes in disordered eating and eating disorder treatment as well as other nutrition-related issues, like diabetes and GI nutrition.
I work with my clients to instill mindful eating and flexible eating practices. We can work to integrate the mindset that all foods fit and focuses on eating balanced meals and snacks. We can explore your relationship with your body and movement. We can also do meal support sessions and food exposure work together if that would feel supportive for you.
I am a registered dietitian based in New York City who specializes in disordered eating and eating disorder treatment as well as other nutrition-related issues, like diabetes and GI nutrition.
I work with my clients to instill mindful eating and flexible eating practices. We can work to integrate the mindset that all foods fit and focuses on eating balanced meals and snacks. We can explore your relationship with your body and movement. We can also do meal support sessions and food exposure work together if that would feel supportive for you.
(516) 604-3316 View (516) 604-3316
Photo of Madeline Basler - Real You Nutrition, Nutritionist/Dietitian, MS, RDN, CDN
Real You Nutrition
Nutritionist/Dietitian, MS, RDN, CDN
Wantagh, NY 11793
We offer extensive gastrointestinal dysfunction and hormonal testing to get to the root causes and personalize and customize a protocol to address these needs.
At Real You Nutrition we will assess your biological makeup and lifestyle, help you set unique goals, plan meals, choose, prepare, and mindfully eat what your body needs, wants, and craves. We can put you on the path to individual wellness and optimal health.
We offer extensive gastrointestinal dysfunction and hormonal testing to get to the root causes and personalize and customize a protocol to address these needs.
At Real You Nutrition we will assess your biological makeup and lifestyle, help you set unique goals, plan meals, choose, prepare, and mindfully eat what your body needs, wants, and craves. We can put you on the path to individual wellness and optimal health.
(516) 784-4052 View (516) 784-4052
Photo of Christine Jones-Howard, Nutritionist/Dietitian, RDN, CDN
Christine Jones-Howard
Nutritionist/Dietitian, RDN, CDN
Serves Area
Whether you're aiming to safely use GLP-1 medications, manage gut issues, improve cholesterol or blood pressure, support women’s health from fertility through post-menopause, or lose or maintain weight, I build plans designed around you.
I treat clients with the following health challenges; IBS, SIBO, IBD, Reflux, Celiac Disease, Diabetes, Hypertension, Heart Disease, Weight Loss, Weight Gain, Weight Management, Fertility, Menopause and Sports Nutrition. I also help vegans and vegetarians create meals with the proper balance of macro and micro nutrients.
Whether you're aiming to safely use GLP-1 medications, manage gut issues, improve cholesterol or blood pressure, support women’s health from fertility through post-menopause, or lose or maintain weight, I build plans designed around you.
I treat clients with the following health challenges; IBS, SIBO, IBD, Reflux, Celiac Disease, Diabetes, Hypertension, Heart Disease, Weight Loss, Weight Gain, Weight Management, Fertility, Menopause and Sports Nutrition. I also help vegans and vegetarians create meals with the proper balance of macro and micro nutrients.
(917) 746-3851 View (917) 746-3851
Photo of Lana Zinger, Nutritionist/Dietitian, EdD, RD, CHES
Lana Zinger
Nutritionist/Dietitian, EdD, RD, CHES
Serves Area
Dr. Lana Zinger is a Professor of Nutrition, Public Health and Health Coaching. She is a well known author of many textbooks and peer reviewed research articles as well as a national speaker on health and nutrition. She holds a B.S. in Nutrition from NYU, a M.S in Nutrition and Physiology from Columbia University and a Doctorate in Health and Behavior Studies from Columbia University. She is a Registered Dietitian with many years of clinical experience including obesity, diabetes, cancer, heart disease, eating disorders. She is a Certified LEAP therapist to TEST and treat food intolerances.
Dr. Lana Zinger is a Professor of Nutrition, Public Health and Health Coaching. She is a well known author of many textbooks and peer reviewed research articles as well as a national speaker on health and nutrition. She holds a B.S. in Nutrition from NYU, a M.S in Nutrition and Physiology from Columbia University and a Doctorate in Health and Behavior Studies from Columbia University. She is a Registered Dietitian with many years of clinical experience including obesity, diabetes, cancer, heart disease, eating disorders. She is a Certified LEAP therapist to TEST and treat food intolerances.
(646) 362-7135 View (646) 362-7135
Gastrointestinal (GI) Nutritionists and Dietitians
What is gut health?
Gut health refers to the overall functioning and well-being of the gastrointestinal (GI) system. Key to gut health is the gut microbiome, which is the collection of healthy bacteria living in the gut. These bacteria are essential for the digestion and breakdown of food, and their health significantly impacts digestion. Poor gut health can result in symptoms such as bloating, gas, diarrhea, constipation, and general abdominal discomfort, which may indicate imbalances or issues with the gut microbiome.

Can diet help with GI issues?
Diet plays a major role in gut health, and changes in diet can often reduce or eliminate some of the symptoms associated with gastrointestinal (GI) issues. Often, GI distress is due to food intolerances or sensitivities, such as gluten sensitivity or lactose intolerance. In these cases, eliminating the problematic foods from the diet can resolve the issue. GI problems can also stem from a combination of environmental or genetic factors, such as in the case of irritable bowel syndrome (IBS). Disruptions in the gut microbiome, such as those caused by taking antibiotics, can also lead to GI issues. In both scenarios, maintaining a balanced diet as much as possible with foods that support a healthy microbiome—such as fruits, vegetables, whole grains, and probiotic foods—can often significantly reduce symptoms and improve gut health.

What are the best foods for gut health?
Maintaining a balanced microbiome is essential for gut health, and this is best achieved through a varied diet rich in fruits, vegetables, and probiotic foods. Fruits and vegetables provide essential nutrients and fiber, which nourish the beneficial bacteria in the gut. Probiotic foods, which are those that contain live bacteria, are also great for gut health. Consuming probiotic foods and drinks, such as yogurt, kefir, kombucha, and tempeh, can help support the microbiome by contributing to the diversity of bacteria within the gut.

When should I see a dietitian for GI issues?
Many people can benefit from seeing a dietitian for GI issues. In general, most dietitians are knowledgeable about what foods support gut health and may help clients choose foods that support a healthy GI system, such as fruits and vegetables high in fiber or foods high in probiotics. Dietitians may be especially beneficial to clients with known gastrointestinal concerns, such as irritable bowel syndrome (IBS) or gastroesophageal reflux disease (GERD). For clients diagnosed with these or similar conditions, dietitians can help clients identify food triggers and develop a meal plan for the client that minimizes symptoms. Dietitians may also work with clients who are having gastrointestinal distress (such as bloating, gas, constipation, diarrhea, etc.) but are not aware of the cause of their symptoms. In such cases, dietitians may be able to help the client identify the cause of the GI distress and coordinate with other medical professionals to help the client better manage their symptoms.