Is Neotame (E961) safe for babies and kids?
Moderate risk for kidsInfants face elevated exposure to Neotame (E961) through formula, baby food, and breast milk contamination. Immature hepatic metabolism and higher intake-to-body-weight ratio amplify dose.
What is neotame (e961)?
The IUPAC name is (3S)-3-(3,3-dimethylbutylamino)-4-[[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino]-4-oxobutanoic acid.
Also known as: (3S)-3-(3,3-dimethylbutylamino)-4-[[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino]-4-oxobutanoic acid, Neotame, N-(N-(3,3-dimethylbutyl)-L-alpha-aspartyl)-L-phenylalanine 1-methyl ester, VJ597D52EX.
- IUPAC name
- (3S)-3-(3,3-dimethylbutylamino)-4-[[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino]-4-oxobutanoic acid
- CAS number
- 165450-17-9
- Molecular formula
- C20H30N2O5
- Molecular weight
- 378.5 g/mol
- SMILES
- CC(C)(C)CCNC(CC(=O)O)C(=O)NC(CC1=CC=CC=C1)C(=O)OC
- PubChem CID
- 9810996
Risk for babies
Moderate riskInfants face elevated exposure to Neotame (E961) through formula, baby food, and breast milk contamination. Immature hepatic metabolism and higher intake-to-body-weight ratio amplify dose.
Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.
Risk for pregnant and nursing people
Context-dependentPregnancy alters metabolism and increases susceptibility to Neotame (E961). Dietary additives consumed during pregnancy cross the placenta; safety margins for adults may not protect the developing fetus.
No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.
Regulatory consensus
1 regulatory bodyhas classified Neotame (E961).
| Agency | Year | Classification | Notes |
|---|---|---|---|
| IARC | 2007 | Not evaluated by IARC for carcinogenicity — Neotame (E961; CAS 165450-17-9; N-[N-(3,3-dimethylbutyl)-L-alpha-aspartyl]-L-phenylalanine 1-methyl ester; a chemically modified aspartame derivative) is approved by FDA (2002) and EU (E961; 2010); EFSA ADI 2 mg/kg/day (EFSA 2007; EFSA Journal 2007;5(11):581); JECFA ADI 2 mg/kg/day (JECFA 2003); no IARC, EPA, or EFSA carcinogenicity classification; neotame is approximately 7,000–13,000× sweeter than sucrose — the most potent approved sweetener at the time of its 2002 approval; despite being structurally derived from aspartame (phenylalanine + aspartic acid dipeptide methyl ester), the addition of the N-(3,3-dimethylbutyl) group to the aspartic acid nitrogen prevents the enzyme (carboxypeptidase A) that would normally cleave phenylalanine from the molecule from acting on it — consequently, neotame does not release free phenylalanine in vivo and does not require the PKU warning label required for aspartame (21 CFR 172.829); the methanol released upon ester hydrolysis is a toxicological consideration but is negligible at use levels given the extreme sweetness (required doses in ppb) |
Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.
Where kids encounter neotame (e961)
- Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
- Occupational Environments — Factories, Warehouses, Transportation vehicles
- Food — processed food, beverages, candy, baked goods
Safer alternatives
Lower-risk approaches that achieve a similar outcome to Neotame (E961):
-
Natural preservatives; Clean-label ingredients; Minimally processed food
Trade-offs: Consumer label appeal ('clean label'); variable efficacy depending on food matrix and target pathogen; may alter flavor/color; regulatory status varies by jurisdiction; often more expensive per unit of preservation effect.Relative cost: 2-5× conventional
Frequently asked questions
Is neotame (e961) safe for kids?
Infants face elevated exposure to Neotame (E961) through formula, baby food, and breast milk contamination. Immature hepatic metabolism and higher intake-to-body-weight ratio amplify dose.
What products contain neotame (e961)?
Neotame (E961) appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments); processed food (Food).
What should I do if my child is exposed to neotame (e961)?
Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.
See Neotame (E961) in the baby app
Look up products containing neotame (e961), compare to alternatives, and explore the full data record.
Open in baby View raw API dataSources (1)
- Neotame CAS 165450-17-9 N-[N-(3,3-Dimethylbutyl)-L-alpha-Aspartyl]-L-Phenylalanine 1-Methyl Ester C20H30N2O5 7000-13000x Sucrose; FDA Approved 2002 21 CFR 172.829 All Foods; EU E961 2010; JECFA ADI 2 mg/kg/day 2003; EFSA ADI 2 mg/kg/day EFSA Journal 2007;5(11):581; No PKU Warning Required 3,3-Dimethylbutyl Steric Block Carboxypeptidase A No Free Phenylalanine; T1R2/T1R3 Heterodimer Hydrophobic Neohexyl Binding Site Extra Affinity; De-Esterified Neotame Major Metabolite Methanol Negligible at ppb Use; NutraSweet 1992 Patent 2002 FDA Approval; 80+ Study Regulatory Package No Carcinogenicity Genotoxicity Neurotoxicity; Limited Commercial Adoption vs Aspartame Sucralose Stevia (2007) — regulatory
Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →