The Gastroenterologist And His Daughter

S05E02 | How to diagnose a food intolerance


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In this solo mini-episode, Sandra breaks down what food intolerance really is, why most tests are a waste of money, and how proper diagnosis works. This episode covers:


  • Allergy vs intolerance: why mixing them up leads to confusion and why IgG “intolerance tests” are a scam.
  • The main types of intolerances: enzymatic (like lactose), food chemical sensitivities, and FODMAP-related symptoms.
  • How diagnosis really happens
  • Where to start & who to see


Food intolerance isn’t a quick test. It’s a structured process best done with expert guidance to avoid unnecessary restriction, fear of food, and malnutrition. With the right support, you can get clarity without the chaos.


If you’re suspecting a food intolerance, connect with a Nutrition A-Z specialist today here


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Sandra Mikhail

Wagdy Mikhail 

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The Gastroenterologist And His DaughterBy Sandra Mikhail