Our TEAM of Registered Dietitians
At NutritionECW, there is always a Registered Dietitian (RD) ready to help.
We are committed to providing trusted, compassionate, and professional nutrition services for anyone seeking expert guidance toward better health.
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Our practice offers RDs who are experts in different areas of nutrition.
Before booking on-line, please, review each dietitian's specialties and biographies to ensure you schedule an appointment with the one who best suits your nutritional needs.
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For further guidance or specific questions, complete the CONTACT US form or call 678-407-2159
To view accepted insurance plans, please visit our Insurance & Fees page.
Eugenia Couchoud-Wilkinson MS, RDN, LD is a Board Certified Registered Dietitian/Nutritionist by American Dietetic Association, licensed by the Georgia State Board and Founder and CEO of NutritionECW, LLC - Medical Nutrition Therapy.
​She completed her Bachelor at Universidad Nacional de Buenos Aires, School of Medicine (UBA-Argentina) and graduate/Master Degrees from Universidad Nacional de Cordoba, School of Medical Sciences (UNC-Arg.) and a Post-degree in Enteral and Parenteral Nutrition Support from School of Post-Degree, Biochemistry & Pharmacy, UBA-Arg.
Didactic Program in Dietetic from University of Alabama (UA), Tuscaloosa y Graduate and internship program from Bowling Green State University (BGSU), Ohio.
Coming from a medical family she started in the field of medical nutrition therapy (MNT) since she was very young.
She began her clinical career at Hospital de Ninos Ricardo Gutierrez's, nutrition support for the Oncology/Hematology Unit - Arg. Then she served for 15+ years as a full-time staff and in management positions for inpatients in Acute & Intensive Care Units at Clinica Bazterica, Hospital Britanico de Buenos Aires, Centro Medico Dr. Deragopyan and was a Nutrition Consultant for many other Programs and Companies. To validate her academic credentials against U.S. licensure standards and sit for her national RD examination, completed undergraduate and graduate coursework involving rotations at WellStar Health System, Children's Healthcare of Atlanta (Egleston, with oncology patients), the Depart. of Senior Services, and the Gwinnett County Board of Health (WIC Clinic), GA.
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​She specializes in translating complex scientific research into clear, practical, and easy-to-understand information for her patients. Her areas of expertise include Nutritional Biochemistry, Metabolic issues, Cardiovascular Disease, and Nutrigenomics, with a focus on how individuals can optimize health through personalized nutrition strategies.
She brings advanced knowledge in the integrative care of hematology and oncology patients, helping manage side effects such as taste changes, weight loss, and nausea, while ensuring optimal nutrition to support strength and treatment tolerance.
Areas of Expertise
NUTRIGENOMIX - genetic testing for personalized Nutrition
BODY COMPOSITION, Anthropometry & Bioelectrical Impedance Analysis (BIA)
* HEMATO/ONCOLOGY NUTRITION SUPPORT - kids, teens & adults
NUTRITION SUPPORT - Kids, teens & adults
Enteral Nutrition (oral suppl. NG/OG tubes, G-tube, J-Tube). Parenteral Nutrition (PN) partial/total
Ostomies (colostomy, Ileostomy and J-Pouch)
Short bowel syndrome, intestinal failure, resection of parts of intestine, malabsorptive conditions, protein-energy malnutrition, severe dysphagia, Unintended weight loss and underweight,
* GASTROINTESTINAL DISORDERS - for kids, teens & adult
Dysphagia, GERD, gastroparesis, Celiac Disease and gluten related conditions, diverticular disease, Eosinophilic disorders, chronic diarrhea, microscopic colitis, chronic constipation among others.
* ENDOCRINE & AUTOINMUNE conditions - for kids, teens and adult
Prediabetes, Metabolic syndrome, T1D, T2D and other specific types of DIABETES. Hypoglycemia, Sjogren's syndrome, Polycystic ovary syndrome, Menopause, Multiple sclerosis, Rheumatoid arthritis, lupus (SLE) , Diabetic gastroparesis
* CARDIOVASCULAR Conditions - Kids, teens and adults
Dyslipidemias, Congenital heart disease (CHD), Heart failure.
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* LIVER & PANCREATIC disease - Adults.
Fatty Liver and non-alcoholic fatty liver, Alcoholic malnutrition.
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ADULTS General Nutrition - Healthy eating, wellness,
​Weight management: overweight, obesity, and Weight loss medication GLP-1 treatment
​RENAL Disease - Acute renal failure, chronic kidney disease, end-stage renal disease (dialysis), Kidney transplant, Polycystic Kidney disease
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​​​​MATERNAL NUTRITION - pregnancy, breastfeeding, and postpartum period.
Adolescent pregnancy. Multiple pregnancies, Anemias
Excess of inadequate gestational weight gain. Low/excess weight gain during pregnancy.
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Languages - English and Spanish.
Haley M. BAK RDN CNSC is a Board-Certified Registered Dietitian/Nutritionist by the Academy of Nutrition and Dietetics, licensed by the Georgia State Board. She earned her Bachelor of Science in Nutrition and Dietetics from Arizona State University and holds the following certifications:
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Certificate of Training in Obesity Interventions for Adults, CDR
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Certified Nutrition Support Clinician (CNSC)
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Certified Diabetes Care and Education Specialist (CDCES) (In progress)
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Integrative and Functional Nutrition Certified Practitioner Credential (IFNCP) (In progress)
Mrs. Bak is currently working as Registered Dietitian II at Phoenix Children's Hospital in Arizona. With over 7 years of experience in nutrition, Haley has worked in a variety of settings, including hospitals, schools, and outpatient clinics, providing nutrition counseling and education to diverse populations.
She is actively advancing her expertise in diabetes care (CDCES), along with integrative nutrition credential (IFNCP) to better support her clients through a holistic, evidence-based approach that addresses root causes of health concerns.
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Haley was inspired to become a dietitian after personally experiencing the impact of nutrition on her own health, particularly while navigating gastrointestinal issues. Although she intentionally planned to pursue a medical degree, her passion for both science and food led her to the career of dietetics.
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Mrs Bak is deeply committed to empowering individuals to achieve their health goals through personalized, evidence-based nutrition counseling.
Areas of Expertise
​*PEDIATRIC Nutrition - Healthy eating - General diets for Infant, toddler, preschool, school-age child and adolescent. Plant based-diet Nutrition management of children/teens with special health care like failure to thrive (FTT), poor growth, malnutrition, picky eaters, texture issues, feeding difficulties like oral aversion.
Weight management - Overweight, obesity, underweight.
* Eating disorders - screening
*NEUROLOGICAL & DEVELOPMENTAL conditions
kids & teens - Epilepsy (diet-responsive cases), Cerebral palsy, Mental disorders, Down syndrome, autistic spectrum disorders (feeding challenges), ADHD or learning disabilities.
Adults - Dementia/Alzheimer, Parkinson’s disease, Depression impacting intake, Epilepsy (diet-responsive cases), Cerebral palsy, Mental disorders, autistic spectrum disorders (feeding challenges), ADHD or learning disabilities
​Genetic & Chronic Conditions - Cystic Fibrosis, Iron deficiency anemia, vitamin deficiencies. ​
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* ADULTS - Healthy eating, wellness, Vegan & vegetarian diets, Plant based diets.
​Weight management: Underweight, overweight, obesity, Depression impacting intake
Weight loss medication GLP-1 treatment, Bariatric Surgery. Unintended weight loss/gains
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* NUTRITION SUPPORT - Kids, teens & adults
Enteral Nutrition (oral suppl. NG/OG tubes, G-tube, J-Tube). Parenteral Nutrition (PN) partial/total
Nutrition support for oncology kids, teens and adults
Food allergies and Intolerances - Kids, teens & adults
Food hypersensitivities, Food allergies (IgE mediated food allergies), lactose/ gluten intolerances among others
Endocrine and Autoimmune conditions - for kids, teens and adult
Prediabetes, Metabolic syndrome, T1D, T2D and other specific types of DIABETES. Hypoglycemia, Grave's disease
Polycystic ovary syndrome, menopause, Rheumatoid arthritis, Hashimoto’s thyroiditis, lupus (SLE) ​
Gastrointestinal Disorders - for kids, teens & adult
Dysphagia, GERD, gastroparesis, Celiac Disease and gluten related conditions, diverticular disease
Irritable Bowel syndrome and low FODMAP, among others
Liver, Renal and Pancreatic Disease - Fatty Liver and non-alcoholic fatty liver.
Acute renal failure, chronic kidney disease, end-stage renal disease (dialysis) Alcoholic malnutrition.
Cardiovascular Conditions - Kids, teens and adults
Hypertension, dyslipidemias, Congenital heart disease (CHD), Heart failure.
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​​​​*MATERNAL NUTRITION - pregnancy, breastfeeding, and postpartum period. Vegan & Vegetarianism.
Adolescent pregnancy. Multiple pregnancies.
Gestational Diabetes, anemias, HBP, Food sensitivities, Pregnancy after Bariatric surgery, Cardiovasc. problems.
Excess of inadequate gestational weight gain. Pre/post fertility treatment, Low/excess weight gain during pregnancy. Irritable bowel syndrome and FODMAP diets among other medical conditions.
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Languages - English
✓ Babies & Toddler <3 yrs.
✓ Kids & Teen: 4 - 9 yrs.
✓ Early Adolescence 10–14 y
✓ Adolescence 15–17 yrs
✓ Young adults 18–24 yrs
✓ Adults 25 - 74 yrs
✓ Seniors 75+yrs
✓ Maternal Nutrition
✓ Neurological &
developmental conditions
Melissa Ayres, MPH, MS, RD, NASM-CPT is a Registered Dietitian, Board-Certified Registered Dietitian/Nutritionist by the Academy of Nutrition and Dietetics, licensed by the Georgia State Board.
She holds a Master’s in Public Health Nutrition from New York University and Master of Science in Nutrition from University of Saint Joseph - Hartford, CT with graduate certificate in sports nutrition. She completed her Dietetic Internship and additional graduate certificate in food and nutrition through Bowling Green State University.
Her Bachelor of Arts in Humanities is from World College Institute at The New College of California, which encompassed multi-cultural studies in dance, foreign language, social studies and the arts.
Mrs. Ayres holds the following certifications:
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National Academy of Sports Medicine - Certified Personal Trainer
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Guild Certified Feldenkrais Teacher® of sensory motor education
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Certified Eating Disorders Specialist (CEDS), in process
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​Ms Ayres specializes in exercise and sports performance nutrition - specializing in nutrition for dance athletes - and currently in supervised practice to complete the CEDS through the International Association of Eating Disorders Professionals.​
She integrates holistic and evidence-based perspectives upon collaboration with each individual patient to achieve their greatest possible health outcomes as a whole person.
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​She welcomes patients of all backgrounds and believes in empowering individuals to develop skills for self-care at every stage. She strives to facilitate awareness through a non-judgmental and supportive atmosphere.
Areas of Expertise
* ​ADULTS & ADOLESCENTS - Healthy eating - wellness, Vegan & vegetarian diets, Plant based diets.
Sport Nutrition - Wellness for fitness and exercise performance. Nutrition for dance athletes.
* NEUROLOGICAL & DEVELOPMENTAL conditions - Parkinson’s disease
Depression impacting intake, Anxiety and fear around foods
Autism spectrum disorder (feeding challenges) ADHD or learning disabilities
* EATING DISORDERS (ED) - Anorexia Nervosa, Bulimia Nervosa, Binge eating disorder, Avoidant Restrictive Food
Intake disorder (ARFID), Unspecified feeding or ED (UFED), Other specified feeding feeding or ED (OSFED)
Anxiety and fear around food
​ Weight management: Underweight, overweight, obesity, Unintended weight loss/gains
Depression impacting intake
Weight loss medication GLP-1 treatment
* FOOD ALLERGIES & INTOLERANCES - Food hypersensitivities, Food allergies (IgE mediated food allergies), lactose/ gluten intolerances among others
Cardiovascular Conditions - Hypertension, dyslipidemias, Congenital heart disease (CHD), coronary artery disease, congestive heart failure.
Gastrointestinal Disorders - Dysphagia, GERD, Celiac Disease and gluten related conditions, diverticular disease, iron deficiency anemia and vitamin D deficiency.
Liver, Renal and Pancreatic Disease - non-alcoholic fatty liver, chronic kidney disease
Endocrine and Autoimmune conditions - Prediabetes, Metabolic syndrome
Polycystic ovary syndrome (PCOS), Menopause,
Hashimoto’s thyroiditis, Grave’s disease, Sjogren’s syndrome
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MATERNAL NUTRITION - Nutrition for before, during and after pregnancy.
Gestational Diabetes, Anemias, Food sensitivities.
Irritable Bowel Syndrome, GERD and Celiac Disease
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Languages - English & Spanish
Juliana Tamayo, MS, LDN, RD, CNSC, is a Board-Certified Registered Dietitian Nutritionist (RDN) credentialed by the Academy of Nutrition and Dietetics and a Certified Nutrition Support Clinician (CNSC) through the National Board of Nutrition Support Certification. She earned her Bachelor of Arts from The George Washington University and completed her Master of Science in Nutrition, Dietetics, and Sensory Sciences at Kansas State University.
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Certified Nutrition Support Clinician (CNSC)
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Juliana’s passion for nutrition support is deeply personal. She has firsthand experience as a nutrition support patient and understands the challenges of complex medical conditions. She lives with a feeding tube and previously required total parenteral nutrition (TPN), giving her a unique perspective on the daily realities her patients face.
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She also lives with multiple chronic and autoimmune conditions, including Crohn’s disease, lupus, chronic intestinal pseudo-obstruction (CIPO), and gastroparesis, all of which significantly affect digestion, absorption, and her quality of life.
Her lived experience enhances her ability to provide empathetic, realistic, and practical nutrition guidance.
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Juliana understands that not all diagnoses look the same and dedicates her work to finding solutions that are tailored to her patients. She has been a patient many times and sees the value in giving her patients their own voice when seeking nutrition care, making sure they feel heard and seen at every step.
​Through her work at NutritionECW, Juliana is dedicated to supporting individuals with complex medical and gastrointestinal conditions, helping them improve their nutrition status, quality of life, and confidence in managing their health.
Areas of Expertise
* NUTRITION SUPPORT - Kids, teens & adults
Enteral Nutrition (oral suppl. NG/OG tubes, G-tube, J-Tube). Ostomies: colostomy, Ileostomy and J-Pouch.
Parenteral Nutrition (PN) partial/total. Short bowel syndrome, intestinal failure, resection of parts of intestine, malabsorptive conditions, protein-energy malnutrition, severe dysphagia among other conditions.
Nutrition support for hemato/oncology kids, teens and adults
Nutrition support for kidney pediatric/adult
* GASTROINTESTINAL DISORDERS - for kids, teens & adult
Dysphagia, GERD, gastroparesis, Celiac Disease & gluten related conditions, diverticular disease, Irritable Bowel syndrome, Eosinophilic disorders, Diarrhea, microscopic colitis, chronic constipation.
Food allergies and Intolerances - Kids, teens & adults
Food hypersensitivities, Food allergies (IgE mediated food allergies), lactose/ gluten intolerances among others
* ENDOCRINE & AUTOINMUNE CONDITIONS - for kids, teens and adult
Prediabetes, Metabolic syndrome, T1D, T2D and other specific types of DIABETES. Hypoglycemia, Grave's disease, Sjogren's syndrome, Polycystic ovary syndrome, menopause, Multiple sclerosis, Rheumatoid arthritis, Hashimoto’s thyroiditis, lupus (SLE) and Diabetic gastroparesis.
* NEUROLOGICAL & DEVELOPMENTAL conditions in kids, teens & adults - Epilepsy (diet-responsive cases), Cerebral palsy, Mental disorders, Down syndrome, autistic spectrum disorders (feeding challenges), ADHD or learning disabilities, Dementia/Alzheimer, Parkinson’s disease,
​Genetic & Chronic Conditions - Cystic Fibrosis, Iron deficiency anemia, vitamin deficiencies. ​
PEDIATRIC General Nutrition - Healthy eating, Plant based-diet, Failure to thrive (FTT), poor growth, selective eating, picky eaters and texture issues
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ADULTS General Nutrition - Healthy eating, wellness, Vegan & vegetarian diets, Plant based diets.
​Weight management: Underweight, overweight, obesity, Unintended weight loss/gains
Weight loss medication GLP-1 treatment, Bariatric Surgery.
Liver, Renal and Pancreatic Disease - Adults.
Fatty Liver and non-alcoholic fatty liver, Alcoholic malnutrition. Acute renal failure, chronic kidney disease, end-stage renal disease (dialysis), Kidney transplant, Polycystic Kidney disease
Cardiovascular Conditions - Kids, teens and adults. Dyslipidemias, Congenital heart disease (CHD), Heart failure.
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​​​​MATERNAL NUTRITION - pregnancy, breastfeeding, and postpartum period. Vegan & Vegetarianism.
Adolescent pregnancy. Multiple pregnancies.
Anemias, HBP, Food sensitivities, Pregnancy after Bariatric surgery, Excess of inadequate gestational weight gain. Pre/post fertility treatment, Low/excess weight gain during pregnancy.
Irritable bowel syndrome and FODMAP diets among other medical conditions.
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Languages - English and Spanish
* Appointments available after August, 2026.
Please, call the office to reserve your slot!
Babies & Toddler <3
Kids & Teen 4 - 9 yrs.
✓ Early Adolescence 10–14 y.
✓ Adolescence 15–17 yrs
✓ Young adults 18–24 yrs
✓ Adults 25 - 74 yrs
✓ Seniors 75+yrs
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✓ Maternal Nutrition
✓ Neurological &
developmental conditions
Marco Giraldo-Salazar MS, BC earned both his Bachelor of Science and Master of Science degrees in Nutritional Sciences, with a specialization in Community Nutrition, from the University of Georgia (UGA), where he received the prestigious “Double Dawg” recognition.
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Originally from Medellín, Colombia, Marco began his academic journey in nutrition in 2001 at the University of Antioquia (UdeA). Since high school, he has been driven by a strong commitment to becoming a Registered Dietitian, inspired in part by his own personal experience with weight management. This journey has fostered a deep understanding of both the physical and emotional complexities of nutrition and health, and continues to shape his compassionate, patient-centered approach to care.
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Mr. Giraldo-Salazar's clinical interests include pediatric nutrition, weight management for children, adolescents, and adults, sports nutrition, and medical nutrition therapy for kidney-related conditions and disordered eating patterns.
He is dedicated to delivering evidence-based, practical guidance tailored to each individual, with a strong emphasis on sustainable lifestyle changes.
Mr. Giraldo-Salazar​ is especially passionate about supporting children and families in establishing healthy habits early in life, while also empowering adults to improve their health and prevent diet-related chronic diseases.
Marco combines clinical expertise with empathy, helping patients feel supported, understood, and confident as they work toward improved health and well-being.
AREAS of EXPERTISE
​* PEDIATRIC NUTRITION - Healthy eating - General diets for Infant, toddler, preschool, school-age child and adolescent. Plant based-diet Nutrition management of children/teens with special health care like f poor growth, malnutrition, picky eaters, texture issues, feeding difficulties like oral aversion.
Weight management - Overweight, obesity, underweight.
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* MEN'S NUTRITION - General nutrition, Weight and body composition management, Sports and performance nutrition – Chronic disease prevention and management, Hormonal and healthy aging support and Nutrition education and behavior change
* DISORDERED EATING PATTERNS - Binge eating disorder, Avoidant Restrictive Food Intake disorder (ARFID), Chronic dieting or repeated restrictive eating, Obsessive calorie counting or food tracking, Fear of certain foods or food groups, Emotional eating (eating in response to stress, sadness, boredom, anxiety)​, Feeling loss of control around food, Frequent guilt or shame after eating, Preoccupation with weight, body shape, or “clean eating”, Rigid food rules (“good” vs “bad” foods), Social avoidance related to food or eating situations, Cycles of restriction followed by overeating, Using food to cope with emotions, Ignoring hunger/fullness cues
Orthorexic tendencies (unhealthy obsession with “healthy” eating)
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* SPORT NUTRITION - for kids, teens and adult. Wellness for fitness and exercise performance.
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ADULTS - Healthy eating, wellness, Vegan & vegetarian diets, Plant based diets.​
Weight management: overweight, obesity, Unintended weight loss/gains
Weight loss medication GLP-1 treatment.
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NEUROLOGICAL & DEVELOPMENTAL conditions in adults - Dementia/Alzheimer, Parkinson’s disease, Depression impacting intake, Epilepsy (diet-responsive cases), Cerebral palsy, Mental disorders, autistic spectrum disorders (feeding challenges), ADHD or learning disabilities
RENAL DISEASE - Acute renal failure, chronic kidney disease, end-stage renal disease (dialysis)
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Languages - Spanish and English​
Areas of Expertise
- Healthy eating - Plant based-diets
- Women's health
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- Weight management - kids, teens and adults.
Pre-post bariatric surgery
- Gastrointestinal Disorders: IBS, SIBO, IBD, Crohn's disease, ulcerative colitis.
- Celiac and gluten sensitivities
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- Diabetes - Type 1, Type 2, LADA, gestational)
Continuous glucose monitoring systems (CGM)
Diabetic Nutrition Education
- Pregnancy - prenatal care
- Oncology support
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Languages - English and Russian
Anna Dimant MS RDN LD is a Board-Certified Registered Dietitian and Nutritionist by the Academy of Nutrition and Dietetics and health educator. She has a Bachelor’s degree from Hunter College, City University of New York and Master of Science from Brooklyn College, City University of New York.
With over 10 years of experience, she specializes in diabetes education, lifestyle coaching, and nutrition consulting.
She began her professional career as an educator at the Jewish Guild for the Blind in New York and continued to grow in the field of dietetics and nutrition at NYU Langone Hospital in Brooklyn, NY, and later at the Prestige Adult Day Health Care Center in Milpitas, CA.
As a Certified Diabetes and Lifestyle Coach, Anna contributed to the CDC’s Diabetes Prevention Program at the YMCA in Santa Clara, CA, and also collaborated with BabyLiveAdvice, Smarteater, and Sutter Health.
She held the role of Health Educator II at Kaiser Permanente Corporate and Community Worksite Wellness in Cupertino, CA, and later brought her expertise to Premise Health’s Google Health and Wellness in Sunnyvale, CA.
Her extensive experience spans various organizations, demonstrating her adaptability and commitment to promoting health and wellness.
Her philosophy focuses on clients centered and supports them in their journey with evidenced based information and assists them to set up goals that are practical and achievable in the short and long term.
Babies: 0-12 mos.
Toddler: 1-3 yrs.
Preschool: 3-5 yrs.
✓ Grade-schooler: 5-12 yrs.
✓ Teen: 12-18 yrs.
✓ Young Adult: 18-21 yrs.
✓ Adults 22 - 74 yrs
✓ Seniors 75+yrs
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