EPISODE # 27

Why Blood Tests & Functional Medicine Tests Aren’t the Full Story: Gut, Histamines, Genes, Hormones & More!

Explore functional medicine testing for histamine, gut health, hormones, thyroid, and methylation—plus why symptoms matter more than labs alone.

In this episode of The Histamine Well Podcast, Joanne Kennedy sits down with Mariella Gebhardt to unpack the complexities of functional medicine testing. While lab results can provide valuable insights, they don’t always tell the whole story. Joanne and Mariela explain why relying only on test results can be misleading—and why case history, symptoms, and environmental factors are equally important.

Together, they explore the strengths and limitations of tests for histamine intolerance, methylation, gut health, hormones, Candida, mold exposure, and thyroid function. They also highlight when advanced testing like organic acids tests (OAT), microbiome testing, and genetic panels can be useful—and when they may fall short.

If you’ve ever wondered whether to trust your lab results, this episode offers a clear, practical guide to navigating functional medicine testing with confidence.

What You’ll Learn in This Episode:

  • Why clinical context matters more than test results alone
  • The pros and cons of Candida, mold, and mycotoxin testing
  • The role of the DAO enzyme in histamine breakdown
  • Pitfalls of genetic and methylation testing
  • How to interpret iron tests, thyroid panels, and hormone markers
  • Insights into organic acids tests, oxalates, and microbiome testing
  • The link between histamine, gut health, women’s hormones, and B12
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Stay well,

Joanne Kennedy

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