Magnesium Salts Of Fatty Acids
Also known as: E470b
EFSA's 2018 re-evaluation concluded that magnesium salts of fatty acids (E470b), along with E470a, are of no safety concern at the reported uses and use levels. No numerical ADI was deemed necessary.
What it is
Magnesium salts of fatty acids (E470b); the magnesium salt forms of various fatty acids (e.g., magnesium stearate).
Used as an emulsifier, anticaking agent, glazing agent, and surface conditioner.
Why it's flagged
- very high doses may have laxative effect (magnesium)
What regulators actually say
"The food additives sodium, potassium, calcium and magnesium salts of fatty acids (E 470a and E 470b) were of no safety concern at the reported uses and use levels."
"Re-evaluation of sodium, potassium and calcium salts of fatty acids (E 470a) and magnesium salts of fatty acids (E 470b) as food additives."
Regulatory status
United States — FDA
Magnesium stearate is GRAS in food applications; FDA approves use as anticaking agent.
European Union — EFSA
Approved EU food additive E470b; no numerical ADI.
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