Kidney

Kidney function is one of the quietest and most consequential health variables — you can lose 50% of it without symptoms, and most chronic kidney disease is detected too late. Understanding kidney biology early gives you the chance to preserve function that, once lost, doesn't come back. This chapter is the long game.

6 takeaways from this chapter.

• The kidney markers that matter — eGFR, creatinine, cystatin C, urinary albumin-to-creatinine ratio — and how to read them
• The main drivers of kidney decline — diabetes, hypertension, NSAIDs, dehydration, certain medications
• Dietary patterns that protect kidney function across decades
• Why sodium, protein, and hydration advice is often oversimplified or wrong for healthy kidneys
• How to advocate for earlier and more thorough kidney monitoring with your GP
• The role of cellular and regenerative support in kidney protection

Anyone with a family history of kidney disease, diabetes, or hypertension. People on long-term medications that affect kidney function. Anyone interested in protecting the systems that fail quietly — before they fail.

Part of The Body Blueprint — 41 chapters across every system that matters. £6 per chapter, or £29 for the full bundle (save £217).