Metabolic Health.

Glucose, insulin, muscle, and long-term foundations in the GLP-1 era.

A plain-English guide to understanding your metabolic health — what glucose, insulin, and A1C actually tell you, why muscle matters more than most people realize, what continuous glucose monitors can and can’t show you, and how to think about long-term metabolic foundations in an era dominated by GLP-1 conversations. No diet advice. No weight loss promises. Just the science.

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What’s inside

Six chapters. Sourced and edited.

01What metabolic health actually means.
02Glucose vs. insulin vs. A1C.
03Insulin resistance basics.
04What CGMs can and can’t tell you.
05Why muscle and body composition matter.
06The GLP-1 era and long-term metabolic thinking.

An editorial note

“We wrote this for the reader with a dozen tabs open who still can’t tell which sources to trust. Start here.”

— Prologue

We sell longevity protocols. We also write about them.

Prologue’s editorial team wrote this guide. We try to be useful without overpromising. We cite our sources. When the science is strong, we say so. When it is still emerging, we say that too.

Metabolic Health.

Six chapters. Sourced and edited.

We sell longevity protocols. We also write about them.

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