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Kidney Function

What is Chloride? Your Complete Guide

Chloride works with sodium to maintain fluid balance and acid-base balance in your body. It usually moves in tandem with sodium.

💡Simply Explained

Chloride works alongside sodium to maintain fluid balance in your body. They're like a married couple — they almost always move together. If sodium is abnormal, chloride usually follows.

📏Normal Range

98 – 106mEq/L

Typical reference range. Your lab may use slightly different values.

LowNormalHigh
< 98 mEq/L98 – 106 mEq/L> 106 mEq/L

⬆️What High Chloride Means

Possible Causes

  • Dehydration
  • Kidney disease
  • Metabolic acidosis
  • Excessive salt intake
  • Diarrhea (bicarbonate loss)

Foods That Can Help

  • Increase water intake
  • Reduce salty foods temporarily

⬇️What Low Chloride Means

Possible Causes

  • Prolonged vomiting
  • Excessive sweating
  • Certain kidney diseases
  • Heart failure
  • Overhydration

Foods That Can Help

  • Normal salted food is usually sufficient
  • ORS (oral rehydration salts) if due to vomiting/diarrhea

🏃Lifestyle Actions

If Your Chloride Is High

  • Usually follows sodium — treat the underlying sodium imbalance
  • Stay hydrated
  • Investigate if sodium is normal but chloride is abnormal (unusual)

If Your Chloride Is Low

  • Treat the underlying cause (vomiting, etc.)
  • ORS if losing fluids

🩺When to See a Doctor

High Chloride

Chloride abnormalities usually mirror sodium. Follow sodium urgency guidance.

Low Chloride

Same as sodium urgency guidance. Severe chloride depletion from prolonged vomiting needs IV fluids.

🎯Did You Know?

Table salt is sodium chloride (NaCl) — so chloride makes up about 60% of common salt by weight! When you eat salt, you're getting both sodium and chloride.

❓Frequently Asked Questions

What is Chloride?

Chloride works alongside sodium to maintain fluid balance in your body. They're like a married couple — they almost always move together. If sodium is abnormal, chloride usually follows.

What is the normal range for Chloride?

The typical normal range for Chloride is 98–106 mEq/L.

What causes high Chloride?

Dehydration. Kidney disease. Metabolic acidosis.

What causes low Chloride?

Prolonged vomiting. Excessive sweating. Certain kidney diseases.

How can I check my Chloride levels?

You can check your Chloride levels with a routine blood test. Upload your lab report to ScanHealth for an instant, plain-language explanation.

Check Your Chloride Results Instantly

Upload your blood test report and get a plain-language explanation of your Chloride result — plus all other markers. Free.

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This guide is for informational purposes only and does not constitute medical advice. Reference ranges may vary by lab. Always consult a qualified healthcare provider for diagnosis and treatment.