The Healthspan Map · Nutrient

Chloride

Compiled by Aamir Malik, PhD, Professor of Neuroengineering at Brno University of Technology, from published studies. He is a researcher, not a physician. Last updated 21 August 2026.

Linked to getting too little

Where a shortfall of Chloride is linked: 2 sources.In the order the Map holds them: strongest evidence first. That is a statement about the evidence, not about what matters most.
Condition or system	Direction	Strength	Evidence type	What was found	Source
Endocrine & Metabolic	Eat enough of	Moderate	Established clinical	Chloride depletion (from vomiting, diuretics, NG suction) causes metabolic alkalosis and, secondarily, hypokalemia; low dietary intake is uncommon.	NIH Clinical Methods – Serum Chloride (opens in a new tab)
Cardiovascular	Eat enough of	Moderate	Established clinical	Hypochloremia (via alkalosis) can predispose to ventricular arrhythmias.	Critical-care chloride review (PMC10995984) (opens in a new tab)

Linked to getting too much

Where an excess of Chloride is linked: 2 sources.In the order the Map holds them: strongest evidence first. That is a statement about the evidence, not about what matters most.
Condition or system	Direction	Strength	Evidence type	What was found	Source
Endocrine & Metabolic	Don't overdo	Moderate	Established clinical	Hyperchloremia (from dehydration, excess saline, renal dysfunction) causes hyperchloremic metabolic acidosis.	Critical-care chloride review (PMC10995984) (opens in a new tab)
Cardiovascular	Don't overdo	Moderate	Established clinical	Hyperchloremia is associated with decreased cardiac output and impaired myocardial contractility; with sodium/fluid excess it contributes to hypertension, edema and heart failure.	Critical-care chloride review (PMC10995984) (opens in a new tab)

The Healthspan Map is part of Fix the Floor, a book by Aamir Malik. About the book