Food Sensitivity Nutritionists and Dietitians in Sag Harbor, NY

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
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.
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

More Dietitians and Nutritionists Nearby

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. You’re not alone if you feel trapped by symptoms yet routine labs were normal. Or you’ve been given medication, acid blockers, antidepressants or vague advice like “try eating better” without anyone asking why you have symptoms in the first place. I’ve been there too and I know a better way. My approach focuses on finding the root cause of your health concerns through deeper testing to answer key questions: What’s driving the inflammation? Is the gut lining compromised? Is the microbiome balanced? Is the body absorbing nutrients properly?
My philosophy centers on one simple, powerful truth: the gut is the foundation of health. You’re not alone if you feel trapped by symptoms yet routine labs were normal. Or you’ve been given medication, acid blockers, antidepressants or vague advice like “try eating better” without anyone asking why you have symptoms in the first place. I’ve been there too and I know a better way. My approach focuses on finding the root cause of your health concerns through deeper testing to answer key questions: What’s driving the inflammation? Is the gut lining compromised? Is the microbiome balanced? Is the body absorbing nutrients properly?
(646) 679-7940 View (646) 679-7940
Photo of Ann Silver, Nutritionist/Dietitian, MS, RDN, CDCES, CDN
Ann Silver
Nutritionist/Dietitian, MS, RDN, CDCES, CDN
East Hampton, NY 11937
Meeting with Ann Silver to address your nutritional issues and goals involves allowing Ann a window into your life. Changing one's eating style or food choices is not only about selecting different foods but looking at all aspects of your life that impacts your eating. The questions that need to be explored are why do you eat, when do you eat, where do you eat, how do you eat, what do you eat and how much do you eat.
Meeting with Ann Silver to address your nutritional issues and goals involves allowing Ann a window into your life. Changing one's eating style or food choices is not only about selecting different foods but looking at all aspects of your life that impacts your eating. The questions that need to be explored are why do you eat, when do you eat, where do you eat, how do you eat, what do you eat and how much do you eat.
(631) 284-4815 View (631) 284-4815
Photo of Francesca Alfano, Nutritionist/Dietitian, MS, CDN, CNS, IFNCP
Francesca Alfano
Nutritionist/Dietitian, MS, CDN, CNS, IFNCP
Serves Area
I help women who are struggling to lose weight implement simple, sustainable food and lifestyle habits so they can support a healthy metabolism, balance hormones, increase energy levels, and permanently lose weight without counting calories or following restrictive diets. Unlike traditional diets, I use an individualized functional medicine and culinary nutrition approach to help my clients build lifelong healthy habits so they can confidently nourish their bodies in a delicious and satisfying way.
I help women who are struggling to lose weight implement simple, sustainable food and lifestyle habits so they can support a healthy metabolism, balance hormones, increase energy levels, and permanently lose weight without counting calories or following restrictive diets. Unlike traditional diets, I use an individualized functional medicine and culinary nutrition approach to help my clients build lifelong healthy habits so they can confidently nourish their bodies in a delicious and satisfying way.
(631) 856-2213 View (631) 856-2213

Online Dietitians and Nutritionists

Photo of Alexandra (Lexi) Orlan, Nutritionist/Dietitian, MS, RDN, CDN
Alexandra (Lexi) Orlan
Nutritionist/Dietitian, MS, RDN, CDN
1 Endorsed
Online Only
Nearly 95 percent of my insurance clients pay $0 out of pocket for their sessions! I'm a Columbia University-trained Registered Dietitian. I specialize in gentle weight loss, gut health and digestion, diabetes, gestational diabetes, pregnancy nutrition, bariatric nutrition, and heart health. When we work together I'll give you the tools needed to feel confident in your food choices and in control around food. I'll guide you through creating a plan that works for YOU, based on your body's needs, lifestyle, and food preferences.
Nearly 95 percent of my insurance clients pay $0 out of pocket for their sessions! I'm a Columbia University-trained Registered Dietitian. I specialize in gentle weight loss, gut health and digestion, diabetes, gestational diabetes, pregnancy nutrition, bariatric nutrition, and heart health. When we work together I'll give you the tools needed to feel confident in your food choices and in control around food. I'll guide you through creating a plan that works for YOU, based on your body's needs, lifestyle, and food preferences.
(732) 379-1434 View (732) 379-1434
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 Lellieth Keize, Nutritionist/Dietitian, MS, RDN, CDCES
Lellieth Keize
Nutritionist/Dietitian, MS, RDN, CDCES
New Rochelle, NY 10801
Struggling with diabetes, weight, or digestive issues? I help clients uncover the root causes of symptoms—like inflammation, hormone imbalance, or gut dysfunction—and create personalized, sustainable plans that fit real life. With 16+ years as an RDN and CDCES, I guide you with evidence‑based, functional nutrition so you can lower A1C, improve digestion, boost energy, and feel confident in your health again.
Struggling with diabetes, weight, or digestive issues? I help clients uncover the root causes of symptoms—like inflammation, hormone imbalance, or gut dysfunction—and create personalized, sustainable plans that fit real life. With 16+ years as an RDN and CDCES, I guide you with evidence‑based, functional nutrition so you can lower A1C, improve digestion, boost energy, and feel confident in your health again.
(475) 258-8349 View (475) 258-8349
Photo of Ashley Beale, Nutritionist/Dietitian, MPH, RDN, CDN
Ashley Beale
Nutritionist/Dietitian, MPH, RDN, CDN
2 Endorsed
Online Only
Hi! My name is Ashley (she/her) and I am a Registered Dietitian based out of New York City. I am the owner of Ashley Beale Nutrition where I practice through a weight-inclusive, all-foods-fit, and trauma-informed approach. I respect and appreciate body diversity, knowing that no two individual’s needs are alike. I believe in a collaborative relationship with my clients where we work together to find what works best for them. Whether you are working on your recovery from an eating disorder or learning how to navigate food with a chronic illness, there is no “right” way to start this journey.
Hi! My name is Ashley (she/her) and I am a Registered Dietitian based out of New York City. I am the owner of Ashley Beale Nutrition where I practice through a weight-inclusive, all-foods-fit, and trauma-informed approach. I respect and appreciate body diversity, knowing that no two individual’s needs are alike. I believe in a collaborative relationship with my clients where we work together to find what works best for them. Whether you are working on your recovery from an eating disorder or learning how to navigate food with a chronic illness, there is no “right” way to start this journey.
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Photo of Jillian Mergruen, Nutritionist/Dietitian, RD, CDN
Jillian Mergruen
Nutritionist/Dietitian, RD, CDN
3 Endorsed
Online Only
If you are struggling with your relationship with food, movement or your body, we might be a good fit to work together! 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. If you often feel pre-occupied with food or your body, struggle with feeling chaotic or in control around food, or if it feels hard to feel confident in your food choices, we can do this work together! I am here to support you in finding peace with food and your body. My goal is to help you do sustainable work with support!
If you are struggling with your relationship with food, movement or your body, we might be a good fit to work together! 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. If you often feel pre-occupied with food or your body, struggle with feeling chaotic or in control around food, or if it feels hard to feel confident in your food choices, we can do this work together! I am here to support you in finding peace with food and your body. My goal is to help you do sustainable work with support!
(516) 604-3316 View (516) 604-3316
Photo of Isabelle Carren-Le Sauter, Nutritionist/Dietitian, MS, RD, CDN
Isabelle Carren-Le Sauter
Nutritionist/Dietitian, MS, RD, CDN
1 Endorsed
New York, NY 10022
I’m Isabelle, a Registered Dietitian and founder of Nourished Roots Nutrition, offering highly personalized, identity-affirming support for eating disorder recovery. I specialize in working with LGBTQ+, neurodivergent, and individuals navigating chronic pain. My clients are thoughtful, accomplished, and ready for a liberatory path to healing. As a queer, neurodivergent, fat clinician, I deeply understand the exhaustion of navigating systems that weren’t made for you. If you have experienced care that didn't honor your experience, it is not your fault. You are not broken — you are also not alone.
I’m Isabelle, a Registered Dietitian and founder of Nourished Roots Nutrition, offering highly personalized, identity-affirming support for eating disorder recovery. I specialize in working with LGBTQ+, neurodivergent, and individuals navigating chronic pain. My clients are thoughtful, accomplished, and ready for a liberatory path to healing. As a queer, neurodivergent, fat clinician, I deeply understand the exhaustion of navigating systems that weren’t made for you. If you have experienced care that didn't honor your experience, it is not your fault. You are not broken — you are also not alone.
(347) 801-2471 View (347) 801-2471
Photo of Rebecca Alcosser, Nutritionist/Dietitian, RD, CDN, CEDS
Rebecca Alcosser
Nutritionist/Dietitian, RD, CDN, CEDS
New York, NY 10007
Rebecca's ideal clients are those struggling with eating disorders—Anorexia, Bulimia, Binge Eating, Orthorexia, or ARFID—as well as dancers or athletes navigating performance pressure. They come seeking relief from food rules, guilt, and body image struggles, or needing support fueling demanding training. Rebecca meets each client with a compassionate, weight-inclusive, all-foods-fit approach—creating a safe space to heal their relationship with food, rebuild body trust, and develop sustainable nourishment habits. For performers, she integrates performance nutrition to support energy and recovery without compromising well-being.
Rebecca's ideal clients are those struggling with eating disorders—Anorexia, Bulimia, Binge Eating, Orthorexia, or ARFID—as well as dancers or athletes navigating performance pressure. They come seeking relief from food rules, guilt, and body image struggles, or needing support fueling demanding training. Rebecca meets each client with a compassionate, weight-inclusive, all-foods-fit approach—creating a safe space to heal their relationship with food, rebuild body trust, and develop sustainable nourishment habits. For performers, she integrates performance nutrition to support energy and recovery without compromising well-being.
(332) 264-5969 View (332) 264-5969
Photo of Laura Cordella, Nutritionist/Dietitian, MS, RDN, CDN
Laura Cordella
Nutritionist/Dietitian, MS, RDN, CDN
3 Endorsed
Online Only
Laura is a Registered Dietitian Nutritionist (RDN) with a background in psychology that focuses on helping clients cultivate a safe and nourishing relationship with food and eating while supporting their mental health. She believes health is so much more than what we eat, so she has a special focus at the intersection of nutrition and psychological wellbeing. Laura has won numerous awards for her holistic approach to care, including Dietitian of the Year at New York Presbyterian Hospital - one of the largest health systems in NYC.
Laura is a Registered Dietitian Nutritionist (RDN) with a background in psychology that focuses on helping clients cultivate a safe and nourishing relationship with food and eating while supporting their mental health. She believes health is so much more than what we eat, so she has a special focus at the intersection of nutrition and psychological wellbeing. Laura has won numerous awards for her holistic approach to care, including Dietitian of the Year at New York Presbyterian Hospital - one of the largest health systems in NYC.
(914) 690-7909 View (914) 690-7909
Photo of Alex Leibold, Nutritionist/Dietitian, RD, LDN/CDN, MS, CEDS
Alex Leibold
Nutritionist/Dietitian, RD, LDN/CDN, MS, CEDS
1 Endorsed
Online Only
When was the last time food was FUN for you? If it’s been a while, I’d love to help you explore how food can be more than just necessary nourishment. Eating disorders take the social, cultural, and, frankly, the joy out of eating. My goal is to guide each client on their journey, teaching clients how to nourish themselves physically, mentally, and emotionally.
When was the last time food was FUN for you? If it’s been a while, I’d love to help you explore how food can be more than just necessary nourishment. Eating disorders take the social, cultural, and, frankly, the joy out of eating. My goal is to guide each client on their journey, teaching clients how to nourish themselves physically, mentally, and emotionally.
(646) 212-4849 View (646) 212-4849
Photo of Dr. Danielle Heard, Nutritionist/Dietitian, DCN, MS, CNS, LN, CKNS
Dr. Danielle Heard
Nutritionist/Dietitian, DCN, MS, CNS, LN, CKNS
New York, NY 10018
Dr. Heard is a Licensed and Board Certified Doctor of Clinical & Functional Nutrition, and Certified Nutrition Specialist. She coaches women who want to improve their health and wellness. Dr. Heard has many years of experience working with people who have a wide range of health conditions. She primarily works with women ages 18+.
Dr. Heard is a Licensed and Board Certified Doctor of Clinical & Functional Nutrition, and Certified Nutrition Specialist. She coaches women who want to improve their health and wellness. Dr. Heard has many years of experience working with people who have a wide range of health conditions. She primarily works with women ages 18+.
(212) 535-3160 View (212) 535-3160
Photo of Leslie Anders, Nutritionist/Dietitian, MSc, RDN, CDN
Leslie Anders
Nutritionist/Dietitian, MSc, RDN, CDN
Hartsdale, NY 10530
My practice focuses on helping patients create and sustain new eating and lifestyle behaviors that can effectively improve their medical conditions, support immunity, increase energy and well being. I specialize in nutrition counseling for adults, adolescents and children regarding weight control, eating disorders, cholesterol abnormalities, auto-immune conditions, hypertension, diabetes, irritable bowel syndrome, inflammatory bowel disease, pre/post bariatric surgery counseling, food allergies/ sensitivities, and a number of additional medical conditions. I provide accurate information regarding the impact of nutrition on a patient's medical condition(s). This is the cornerstone in creating permanent and effective nutrition/lifestyle changes.
My practice focuses on helping patients create and sustain new eating and lifestyle behaviors that can effectively improve their medical conditions, support immunity, increase energy and well being. I specialize in nutrition counseling for adults, adolescents and children regarding weight control, eating disorders, cholesterol abnormalities, auto-immune conditions, hypertension, diabetes, irritable bowel syndrome, inflammatory bowel disease, pre/post bariatric surgery counseling, food allergies/ sensitivities, and a number of additional medical conditions. I provide accurate information regarding the impact of nutrition on a patient's medical condition(s). This is the cornerstone in creating permanent and effective nutrition/lifestyle changes.
(914) 269-8948 View (914) 269-8948
Photo of Vivian Moran, Nutritionist/Dietitian, MS, CNS, CDN, MBA
Vivian Moran
Nutritionist/Dietitian, MS, CNS, CDN, MBA
Yonkers, NY 10701
Do you feel like you’re doing everything right, but your weight, energy, digestion, or blood sugar still aren’t where they should be? Many people I work with are frustrated. They’ve tried diets, seen specialists, and tried to be healthy, yet their body doesn’t respond the way it once did. Often the issue isn’t willpower. Your metabolism may simply need the right support. Together we make small, simple changes to the food & lifestyle choices you make daily—guided by science, & tailored to your body. My clients report sustainable weight loss, steadier energy, improved digestion, blood sugar balance, strong bones, & renewed confidence.
Do you feel like you’re doing everything right, but your weight, energy, digestion, or blood sugar still aren’t where they should be? Many people I work with are frustrated. They’ve tried diets, seen specialists, and tried to be healthy, yet their body doesn’t respond the way it once did. Often the issue isn’t willpower. Your metabolism may simply need the right support. Together we make small, simple changes to the food & lifestyle choices you make daily—guided by science, & tailored to your body. My clients report sustainable weight loss, steadier energy, improved digestion, blood sugar balance, strong bones, & renewed confidence.
(914) 506-4781 View (914) 506-4781
Photo of Iris Improvement Epstein - Nutrition Improvement Center, Nutritionist/Dietitian, RDN, CEDS, CAI
Nutrition Improvement Center
Nutritionist/Dietitian, RDN, CEDS, CAI
Pomona, NY 10970
Iris Epstein, a registered dietitian and founder of the Nutrition Improvement Center, specializing in eating disorders. With extensive experience, she is dedicated to helping individuals and families navigate recovery challenges. As a Certified ARISE Interventionist, Iris provides compassionate, family-focused support. At her center, she offers personalized coaching to improve relationships with food and promote sustainable health. Her approach combines evidence-based nutrition strategies with an understanding of emotional and behavioral factors. Iris fosters communication and collaboration within families, ensuring holistic care.
Iris Epstein, a registered dietitian and founder of the Nutrition Improvement Center, specializing in eating disorders. With extensive experience, she is dedicated to helping individuals and families navigate recovery challenges. As a Certified ARISE Interventionist, Iris provides compassionate, family-focused support. At her center, she offers personalized coaching to improve relationships with food and promote sustainable health. Her approach combines evidence-based nutrition strategies with an understanding of emotional and behavioral factors. Iris fosters communication and collaboration within families, ensuring holistic care.
(845) 262-6677 View (845) 262-6677
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 Samantha Podob - Podob Nutrition PLLC, Nutritionist/Dietitian, MS, RD, CDN
Podob Nutrition PLLC
Nutritionist/Dietitian, MS, RD, CDN
1 Endorsed
Bayside, NY 11361
Understanding your unique challenges – from weight management to nutrition confusion. Samantha's personalized guidance and support will empower you to achieve your goals, whether it's shedding pounds, managing health conditions, or boosting your confidence. Say goodbye to dieting woes and hello to sustainable, enjoyable eating habits.
Understanding your unique challenges – from weight management to nutrition confusion. Samantha's personalized guidance and support will empower you to achieve your goals, whether it's shedding pounds, managing health conditions, or boosting your confidence. Say goodbye to dieting woes and hello to sustainable, enjoyable eating habits.
(646) 603-0442 View (646) 603-0442
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? If you have IBS, poor energy levels, PMS, PCOS, endometriosis, or fertility issues, you are not alone. I am passionate about empowering you to overcome these issues and reclaim confidence in your health journey. Imagine a life where you feel revitalized, free from PMS, acne, anxiety, and digestive discomfort. Picture the energy and vitality you'll gain. As your dedicated functional medicine dietitian, my mission is to guide you towards lasting well-being inside and out.
Are you struggling with weight management, hormone balance, or uncomfortable gastrointestinal symptoms? If you have IBS, poor energy levels, PMS, PCOS, endometriosis, or fertility issues, you are not alone. I am passionate about empowering you to overcome these issues and reclaim confidence in your health journey. Imagine a life where you feel revitalized, free from PMS, acne, anxiety, and digestive discomfort. Picture the energy and vitality you'll gain. As your dedicated functional medicine dietitian, my mission is to guide you towards lasting well-being inside and out.
(516) 774-1199 View (516) 774-1199
Food Sensitivity Nutritionists and Dietitians
What is a food sensitivity?
A food sensitivity is a condition where an individual has difficulty digesting certain foods, leading to symptoms such as abdominal pain, bloating, diarrhea, and rashes. The exact causes of food sensitivities are not well understood, and the symptoms and triggers can vary greatly from person to person. However, some foods are more likely to cause sensitivities, including gluten, soy, eggs, dairy, and certain food additives like artificial colors and sweeteners.

What is the difference between a food sensitivity and a food allergy?
Food allergies involve an immediate immune system response to a specific food, while food sensitivities result from the digestive system reacting to certain foods. Although both can cause similar symptoms, such as rashes and abdominal pain, allergic reactions typically occur much faster than sensitivity reactions. Allergic reactions can happen as soon as the allergen is ingested, whereas food sensitivity symptoms may appear 24-48 hours after consuming the triggering food. In severe cases, allergic reactions can impair breathing and require immediate medical attention, whereas food sensitivities rarely affect the airway and usually do not need urgent care.

Can food sensitivities be cured?
Currently, there are no definitive treatments for food sensitivities. Unlike food allergies, which children can sometimes outgrow or treat with early exposure to allergens or immunotherapy, food sensitivities do not generally respond to these methods. Thus, the best way to minimize symptoms is usually to avoid the foods that trigger symptoms. In rare cases, food sensitivities may resolve on their own, but, for most people, avoiding the problematic food is the only effective long-term way to manage symptoms.

Should I get food sensitivity testing?
There is little evidence to support the efficacy of food sensitivity testing. Unlike food allergy testing, which measures the body's immune response to certain foods, there are few reliable methods to assess the digestive distress associated with food sensitivities. Individuals experiencing symptoms of food sensitivity but unable to identify the triggering foods, however, may benefit from elimination diets. These diets involve cutting out certain foods to determine which ones cause symptoms. Identifying the problematic foods allows individuals to avoid them in the future, ideally eliminating their digestive issues.