Eat or Avoid
E331

Trisodium Citrate

Also known as: Sodium citrate, Citrosodine, Trisodium salt

EmulsifiersAcidity RegulatorsSequestrantsBuffering Agents

Safety rating

Generally Safe

Eat Away!Generally SafeUse SparinglyAvoid

Purpose and Function

E331 refers to the sodium salts of citric acid (monosodium, disodium, or trisodium citrate). It regulates and adjusts pH levels, helps blend ingredients that would otherwise separate, binds metal ions to prevent oxidation, and maintains pH stability during processing and storage.

Commonly found in

  • Processed foods requiring pH control
  • Pharmaceuticals (acidity control)
  • Cosmetics (pH adjustment)

Key functions

  • Regulates and buffers pH
  • Emulsifies ingredients that would otherwise separate
  • Binds metal ions to prevent oxidation and spoilage

Potential Risks and Side Effects

  1. 01Generally Recognized as Safe (GRAS) for typical dietary usage when used per good manufacturing practices
  2. 02High intake may cause gastrointestinal discomfort — nausea, vomiting, or diarrhea
  3. 03Rare allergic reactions
  4. 04Excessive consumption could potentially disrupt electrolyte balance, though uncommon at typical intake

References

    Related Additives