The 18 Organ Systems
Every guide on this site is mapped to one or more of these 18 systems. Each system has its own color — the same color follows the system across every guide, juice, salad, and protocol. Pick the system your body is asking about and the page will show you the foods, herbs, juices, and salads that support it.
The tireless pump that runs your entire circulatory life.
Twin filters that purify 50 gallons of blood every day.
The fuel-balance system that decides your daily energy.
The body's chemical processing plant — running 500+ functions at once.
The cooling system that quiets the fire beneath chronic disease.
The second brain — where 70% of immunity and most of your serotonin live.
The flexible highways carrying life to every cell.
Every system in this guide begins here — at the level of the cell.
Three pounds of tissue using 20% of your body's energy.
Your largest organ — and a mirror of what's happening inside.
The silent drainage system that clears cellular waste.
Twin glands shaping your response to every demand on the body.
The fluid that carries oxygen, nutrients, hormones, and your immune army.
Two highly metabolic organs that depend on the same nutrients as your brain.
The butterfly-shaped gland that sets every cell's metabolic tempo.
A standing army of cells, signals, and barriers — most of it lives in your gut.
Living tissue that rebuilds itself completely every 10 years.
The exchange surface where the outer world meets the inner world.