Baby Safety / Compounds / Aflatoxin B1

Is Aflatoxin B1 safe for babies and kids?

Very high risk for kids

Infants are more vulnerable to Aflatoxin B1 than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is aflatoxin b1?

The IUPAC name is (3S,7R)-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione.

Also known as: (3S,7R)-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione, AFB1, AFBI, NSC 529592.

IUPAC name
(3S,7R)-11-methoxy-6,8,19-trioxapentacyclo[10.7.0.02,9.03,7.013,17]nonadeca-1,4,9,11,13(17)-pentaene-16,18-dione
CAS number
1162-65-8
Molecular formula
C17H12O6
Molecular weight
312.27 g/mol
SMILES
COC1=C2C3=C(C(=O)CC3)C(=O)OC2=C4C5C=COC5OC4=C1
PubChem CID
186907

Risk for babies

Very high risk

Infants are more vulnerable to Aflatoxin B1 than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

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.

What to do: 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.

Risk for pregnant and nursing people

Context-dependent

Pregnancy alters the metabolism and distribution of Aflatoxin B1, potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

4 regulatory and scientific bodies have classified Aflatoxin B1. The classifications differ — that's the data.

AgencyYearClassificationNotes
IARC2012Group 1 (carcinogenic to humans)Naturally occurring aflatoxins (B1, B2, G1, G2); hepatocellular carcinoma; synergistic with hepatitis B virus; Monograph 100F; B1 is the most potent of the four; dietary and occupational exposure in grain handling
US EPA1998known to be carcinogenic to humansEPA IRIS Group A (human carcinogen); liver cancer primary endpoint; oral slope factor 0.4 per mg/kg-day; EPA action levels for grain and feed
EPA CTX / Genetox—Genotoxicity: positive (Ames: positive, 33 positive / 3 negative reports)
EPA CTX / Genetox—Genotoxicity: positive (Ames: positive, 33 positive / 3 negative reports)

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 aflatoxin b1

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Aflatoxin B1:

  • Prevention (storage and agricultural practices)
    Trade-offs: Zero point-of-use emissions; shifts emissions to power generation (grid-dependent); lower operating cost; higher capital cost; infrastructure requirements (charging, grid capacity); rapidly improving economics.
    Relative cost: 1.2-2×

Frequently asked questions

Is aflatoxin b1 safe for kids?

Infants are more vulnerable to Aflatoxin B1 than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What products contain aflatoxin b1?

Aflatoxin B1 appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

What should I do if my child is exposed to aflatoxin b1?

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.

Why do regulators disagree about aflatoxin b1?

Aflatoxin B1 has been classified by 4 agencies including IARC, US EPA, EPA CTX / Genetox, EPA CTX / Genetox, with differing conclusions. 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. See the regulatory consensus table on this page for the full picture.

See Aflatoxin B1 in the baby app

Look up products containing aflatoxin b1, compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (4)
  1. IARC Monographs Volume 100F: Aflatoxins — Chemical Agents and Related Occupations (2012) — regulatory
  2. US EPA IRIS: Aflatoxins — Carcinogenicity Assessment (Group A) (1998) — regulatory
  3. FDA: Guidance for Industry — Action Levels for Aflatoxins in Animal Feeds and Human Food (2011) — regulatory
  4. EFSA: Scientific Opinion on the Risks for Public Health Related to Aflatoxins in Food and Feed (2013) — 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 →