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Derya Fidan Girgin
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Derya Fidan Girgin

Dietitian at
de'Nutri Clinic
13 Years of Experience
Clinical Dietitian Derya Fidan specializes in clinical nutrition, functional medicine, and medical nutrition therapy, offering personalized, science-based care tailored to each patient’s needs. She has extensive experience in diabetes, insulin resistance, metabolic disorders, nutrition before and after bariatric surgery, hormonal...
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Derya Fidan Girgin

uzm-dyt-derya-fidan-girgin
Dietitian at
de'Nutri Clinic
Leave a review

Overview

Clinical Dietitian Derya Fidan specializes in clinical nutrition, functional medicine, and medical nutrition therapy, offering personalized, science-based care tailored to each patient’s needs. She has extensive experience in diabetes, insulin resistance, metabolic disorders, nutrition before and after bariatric surgery, hormonal imbalances, autoimmune conditions, and chronic inflammation. With advanced clinical expertise in enteral and parenteral nutrition, bariatric nutrition, and root-cause-focused functional nutrition protocols, she provides holistic and sustainable nutrition plans based on each patient’s clinical findings, lifestyle, and health goals at de’Nutri Clinic.
Practice Areas

Qualifications

Experience
  •  
Clinic owner at de’NUTRI CLINIC - 
2023 - 
  •  
Okan University Hospital - Head of Nutrition and Diet Clinic - 
2016 - 
2023 - 
  •  
Republic of Türkiye Marmara Training and Research Hospital - External Consultant Dietitian - 
2014 - 
  •  
Kiğılı Headquarters - Corporate Nutrition Consultant - 
  •  
Private Maltepe Regional Hospital - 
2014 - 
2016 - 
  •  
Anadolu Health Center - 
2014 - 
Qualifications
Education
  •  
2013 - 
Istanbul Haliç University - 
Bachelor’s Degree – Dietitian - 
Turkey
  •  
2020 - 
Istanbul Haliç University - 
Master’s Degree – Specialist Dietitian - 
Turkey
Spoken Languages
  • More languages may be available at the clinic via language support services. 
Please see clinic page

Treatments and Procedures

Chronic Kidney Disease (CKD) Nutrition Therapy
Clinical Nutrition for Special Conditions
Diabetes Nutrition Therapy
Fertility / IVF Nutrition Support
Hypertension Nutrition Therapy
Menopause Nutrition Counseling
Nutrition And Dietetics
Nutrition Therapy for Congenital Disorders
Obesity Nutrition Therapy
Oncology Nutrition Support
PCOS Nutrition Therapy
Pediatric Weight Management & Nutrition
Pregnancy, Postpartum & Breastfeeding Nutrition Counseling

Location

de'Nutri Clinic
Read More
1000+ Patients per year
Doctors in Medicaroute
Suadiye, Kazım Özalp Sk. No:38 D:14, 34740 Kadıköy/İstanbul, Türkiye Doctors in Medicaroute

Reviews

5 Google
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A “Aç” Ç

Verified Review

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Canımm Deniz ile birlikte başladığımız uzun yolculuğumuzda çok güzel bir iş başardık ve ameliyat olmadan diyet ve sporla toplam 28 kilo verdik. Ona ilk gittiğimden 1 hafta sonra hamile olduğumu öğrenip diyete başlayamamıştım. Doğumdan sonraki lohusa kilolarım da arşa çıkınca Denizin kapısını çaldım. Artık kilodan kapanan gözlerim, şişmiş yüzümle beni gördüğünde şok olmuş olsa da sürecimizi öyle güzel yönetti ki ben artık kendime geldim! Bu kilo verme yolculuğunda yol arkadaşınız çok ama çok önemli ve ben bu yolda Deniz ile birlikte yürüdüğüm için çook şanslıyım. İyi ki varsın Deniz ❤️
My dearest Deniz and I have accomplished something amazing on our long journey together. We lost a total of 28 kilos through diet and exercise, without surgery. I couldn’t start the diet because I found out I was pregnant a week after my first visit. When my postpartum weight skyrocketed, I knocked on Deniz’s door again. Although she was shocked to see me with my eyes closed and my face swollen from all the weight, she managed our process so beautifully that I’m finally back to myself! Having a partner on this weight loss journey is incredibly important, and I’m so lucky to have walked this path with Deniz. Thank you for everything, Deniz ❤️
Ebru Demirtas

Verified Review

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Her zaman motive eden, içten, ilgili ve anlayışlı yaklaşımınız için içten teşekkür ederim Derya Hanım. İyi ki varsınız ✨🦋
Thank you so much, Derya Hanım, for your always motivating, sincere, caring, and understanding approach. We’re so glad you’re here! ✨🦋
Elif A.A

Verified Review

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Dünyanın en tatlı, sabırlı, zorları kolay eden diyetisyeni… zorlu bir yola başlarken seçilebilecek en iyi yol arkadaşı… temiz ve samimi bir ortam..
The sweetest, most patient dietitian in the world, who makes difficult things easy… the best companion one can choose when starting a challenging journey… a clean and friendly environment…
GİRAY GİRGİN

Verified Review

Translated by Google - See original
Derya Fidan Girgin
Dietitian at
de'Nutri Clinic

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