Dr. Carmen Calleja
Bariatric Nutritionist

Dr. Carmen Calleja has dedicated her entire professional life to the study, education and clinical management of obesity with a special focus on Bariatric and Metabolic Surgery.

She studied at Harvard Medical School where she was certified in Lifestyle and Culinary Medicine. Additionally she has post-graduate degrees in Human Sexuality Studies and Clinical Nutrition. 

She founded APPLES & PEARS®️ Bariatric Health and Education to provide pre and post-op nutritional resources for bariatric patients.

Elias Ortiz & Company is excited to share Dr. Calleja’s experience with you and to enhance our nutritional support for our patients.

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Professional Experience

  • Founder and Director, APPLES & PEARS®️ Bariatric Health and Education
  • Bariatric Physician, Hospital Ángeles Tijuana
  • Professor of Post-Graduate Course: “Bariatric Surgery and Multidisciplinary Management of Obesity”, Hospital Ángeles Tijuana
  • Culinary Medicine Program Director, Culinary Art School
  • Member, Mexican College of Obesity Surgery and Metabolic Diseases (CMCOEM)
  • Member, International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO)


Certified in Lifestyle Medicine, Harvard Medical School

Certified in Culinary Medicine, Harvard Medical School

Post-Graduation in Human Sexuality Studies, Instituto Mexicano de Sexología

Post-Graduation in Clinical Nutrition, Universidad Iberoamericana

Graduate, Medical School, Universidad Autonoma de Baja California