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Methionine
Methionine
Low concern
Methionine (and DL-methionine) is approved by FDA for nutritional fortification under 21 CFR 172.372. EFSA permits its use.
Found in
240 products
What it is
An essential sulfur-containing amino acid used as nutrient supplement and feed additive.
Nutritional fortification.
Why it's flagged
- high supplemental doses linked to elevated homocysteine
What regulators actually say
"DL-methionine and N-acetyl-DL-methionine may be safely used in foods for special dietary use."
"Methionine is an essential amino acid required for human protein synthesis."
Regulatory status
United States — FDA
permitted under 21 CFR 172.372 for foods for special dietary use
European Union — EFSA
authorized as nutrient (Annex Reg 1925/2006)
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