The Metabolic Health Lab

The Metabolic Health Lab

Food as a path to happiness

Linking nutrition, gut bugs, and mental health

Kristen Deuel, MSc's avatar
Kristen Deuel, MSc
Jun 29, 2025
∙ Paid

Maybe it’s burnout. Perhaps it’s depression. Maybe it’s boredom. Whatever the thing, it feels…flat. I have experienced this, on and off, throughout my entire corporate career. It’s a feeling where my brain wouldn’t exactly fire up about ideas, I wanted to check out before ever checking in, and even the fun stuff wasn’t exciting.

As it turns out, there’s more to this flatness than meets the eye. Research into the gut-brain connection has deepened in recent years, and scientists across various disciplines are now beginning to understand that mental fog, low motivation, and emotional blunting aren’t always rooted in psychology alone; they may also originate in the body. Specifically, in the gut.

I’m working to build a “neuro-nourishment framework” that introduces nutrition as a foundational strategy for mental well-being. It’s a systems-based approach that focuses on the vital roles of B6, B12, and Thiamine, often-overlooked nutrients that:

  • Support gut microbiota

  • Fuels neurotransmitter syn…

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