Ammonium Phosphate
Also known as: E342, monoammonium phosphate, diammonium phosphate
Ammonium phosphates are GRAS under 21 CFR 184.1141a-b. EFSA re-evaluated phosphates and recommended a group ADI for added phosphates of 40 mg/kg bw/day expressed as P, citing concerns about high phosphate intake from the modern diet.
What it is
Ammonium phosphates (mono- and diammonium phosphate), NH4H2PO4 / (NH4)2HPO4, used as food additives.
Leavening agent / dough conditioner / yeast nutrient / acidity regulator.
Why it's flagged
- contributes to dietary phosphate load (relevant in CKD)
What regulators actually say
"Monoammonium phosphate is the chemical (NH4)H2PO4. It is used as a food ingredient and is GRAS."
"The Panel established a group ADI for phosphates of 40 mg P/kg bw per day."
Regulatory status
United States — FDA
GRAS under 21 CFR 184.1141a (mono-) and 184.1141b (di-)
European Union — EFSA
Authorized food additive E342; group ADI for phosphates established 2019
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