Chloride is not a very exciting essential component of the diet, much like phosphorous. Most people consume adequate amounts and deficiency or insufficiency is very rare. The most common form of consumption is through sodium chloride (a.k.a. table salt), though it can be found in other foods. The RDA (recommended daily allowance) is set at about 2300 mg per day and can be achieved almost effortlessly.


  • Component of HCl (hydrochloric acid) in the gut
  • Used in nerve transmissions
  • Helps to maintain electrolyte gradients
  • Involved in enzyme activation

Primary deficiency symptoms and diseases

Deficiency usually happens in those with severe GI disturbances like diarrhea and vomiting and can cause the pH of the blood to shift towards high alkalinity.

  • Loss of appetite
  • Failure to thrive (in children and infants)
  • Weakness
  • Lethargy
  • Hypokalemia

Food Sources

  • Meats
  • Seafood
  • Milk
  • Eggs
  • Vegetables
  • Seaweed


Most people supplement chloride through table salt since it is sodium chloride. Other mineral supplements in their chloride forms will also provide some.

  • Salt
  • Chloride forms of minerals

Other tips

Chloride is not typically a concern except for those with severe electrolyte imbalances.