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magnesium sulfate, Epsom salts ​

Basic Information ​

FieldContent
Chinese namemagnesium sulfate, Epsom salts
English namemagnesium sulfate, Epsom salts
INS/E numberINS 518
Functional classFirming agent, Flavour enhancer
Year adopted1965
Approved byAustralia/New Zealand (FSANZ)

What is it? ​

Magnesium sulfate (Epsom salt) is an inorganic magnesium salt used in foods as a firming agent, colour-retention agent and brewing processing aid. It supplies magnesium and takes part in fermentation and gel stability.

Source ​

Industrial:由镁矿或卤水与硫酸反应、结晶纯化制得

Why is it used? ​

  • Acts as a firming agent keeping produce crisp
  • Retains colour in green vegetables
  • Adjusts hardness and fermentation in brewing
  • Supplies magnesium electrolyte

Common Foods ​

  • Canned fruits and vegetables
  • Pickled vegetables
  • Beer and brewed beverages
  • Sports drinks
  • Fortified foods

Safety ​

ADI (Acceptable Daily Intake):Not applicable (evaluated, no limit set)

Concerns:

  • 过量可能引起腹泻

Usage Standard ​

China:GB 2760《食品安全国家标准 食品添加剂使用标准》

International:

  • EU Regulation 1333/2008 Annex II (E 518)
  • FDA 21 CFR 184.1440 (magnesium sulfate, GRASS)
  • Codex GSFA (INS 518)
  • FSANZ Food Standards Code (518)

In a nutshell ​

Magnesium sulfate is a common firming and colour-retention agent that also supplies magnesium and aids brewing.

Consumer Advice ​

Magnesium sulfate (Epsom salts) is a magnesium mineral salt used as an acidity regulator, firming agent and magnesium fortificant in small amounts in beverages, tofu and infant formula. Magnesium is an essential mineral. It is safe at normal levels, but large doses have a laxative effect and may cause diarrhoea; people with kidney disease should be cautious.

Dietary Restrictions ​

  • Vegan: ✅
  • Halal: ✅
  • Kosher: ✅

Allergens ​

✅ Free from common allergens

Disclaimer ​

The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.