About — Taissa Castello, Nutritionist

Taissa Castello is a registered nutritionist (CRN-4 25106120) specialized in celiac disease, SIBO, food allergies, and gut health. She is also a celiac patient herself — diagnosed after 9 years of searching for answers.

With clinical experience in autoimmune and gastrointestinal conditions, Taissa combines evidence-based practice with lived experience. She understands the daily challenges her patients face because she navigates them herself — from reading labels to avoiding cross-contamination to eating safely in restaurants.

Areas of expertise

  • Celiac disease — newly diagnosed patients, gluten-free diet management, cross-contamination prevention, nutritional deficiency correction
  • SIBO (Small Intestinal Bacterial Overgrowth) — diagnosis support, dietary management, post-treatment recurrence prevention
  • Food allergies & intolerances — cow’s milk protein allergy (CMPA), multiple food allergies, reintroduction protocols
  • Gut health — dysbiosis, IBS, intestinal permeability, microbiome optimization
  • Women’s health — fertility nutrition, pregnancy, menopause, hormonal health
  • Oncology nutrition — nutritional support during and after cancer treatment

Credentials

  • CRN-4 25106120 — Active registration with the Regional Nutrition Council (Brazil)
  • Graduate in Nutrition
  • Teleconsultation practice per CFN Resolution nº 760/2023

Teleconsultation

Taissa offers online consultations in Portuguese for patients in Brazil and worldwide. If you’re a Brazilian living abroad or a Portuguese speaker seeking specialized nutritional guidance, book a consultation.

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