Pet Safety / Compounds / Bisphenol A

Is Bisphenol A safe for dogs and cats?

Moderate risk for pets

Dogs are exposed to BPA through canned food, plastic bowls, and toys. Studies show canned dog food significantly increases serum BPA levels (nearly 3x increase in 2 weeks). Associated with gut microbiome changes.

What is bisphenol a?

The IUPAC name is 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol.

Also known as: 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol, 2,2-Bis(4-hydroxyphenyl)propane, 2,2-Bis(p-hydroxyphenyl)propane, Bisphenol.

IUPAC name: 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol
CAS number: 80-05-7
Molecular formula: C15H16O2
Molecular weight: 228.29 g/mol
SMILES: CC(C)(C1=CC=C(C=C1)O)C2=CC=C(C=C2)O
PubChem CID: 6623

Risk for dogs

Moderate risk

Risk for cats

Moderate risk

Cats fed canned food have higher BPA exposure. Association between canned food consumption and feline hyperthyroidism (though causality not established). Cat food cans primarily use PVC copolymer (95%) rather than BPA epoxy.

Regulatory consensus

20 regulatory and scientific bodies have classified Bisphenol A. The classifications differ — that's the data.

Agency	Year	Classification
ECHA (EU)	—	Substance of Very High Concern (SVHC)
EFSA (EU)	—	TDI: 0.2 ng/kg bw/day
US FDA	—	Safe at current levels occurring in foods
US EPA	—	RfD: 50 μg/kg bw/day
German BfR	—	Disagrees with EFSA 2023 methodology
Health Canada	—	First country to classify BPA as toxic (2008)
EPA CTX / Genetox	—	Genotoxicity: negative (Ames: negative, 0 positive / 3 negative reports)
EPA CTX / Genetox	—	Genotoxicity: negative (Ames: negative, 0 positive / 3 negative reports)
EPA CTX / Skin-Eye	—	Eye Irritation: Eye Dam. 1 (score: very high)
EPA CTX / Skin-Eye	—	Skin Sensitization: Skin Sens. 1 (score: high)
EPA CTX / Skin-Eye	—	Eye Irritation: Eye damage - category 1 (score: very high)
EPA CTX / Skin-Eye	—	Skin Sensitization: Skin sensitisation - category 1 (score: high)
EPA CTX / Skin-Eye	—	Eye Irritation: Serious eye damage/eye irritation - Category 1 (score: very high)
EPA CTX / Skin-Eye	—	Skin Sensitization: Skin sensitization - Category 1 (score: high)
EPA CTX / Skin-Eye	—	Eye Irritation: Category 1 (score: very high)
EPA CTX / Skin-Eye	—	Skin Irritation: Not classified (score: low)
EPA CTX / Skin-Eye	—	Skin Sensitization: Category 1 (score: high)
EPA CTX / Skin-Eye	—	Eye Irritation: Category 8.3A (Category 1) (score: very high)
EPA CTX / Skin-Eye	—	Skin Sensitization: Category 6.5B (Category 1) (score: moderate)
EPA CTX / Skin-Eye	—	skin sensitisation: in vivo (non-LLNA): Not likely to be sensitizing (score: low)

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 pets encounter bisphenol a

Food Contact Materials — Polycarbonate food containers and water bottles, Epoxy resin linings in food and beverage cans, Thermal receipt paper
BPA leaches into food and beverages, especially when heated or with acidic/fatty foods
Personal Care And Household Products — Dental sealants and composites, Eyeglass lenses, CDs, DVDs, and electronic equipment casings
Dermal and inhalation exposure possible during manufacturing and use
Industrial And Occupational Settings — Epoxy resin manufacturing facilities, Polycarbonate production plants, Thermal paper manufacturing
Workers experience higher exposure through inhalation and dermal contact
Environment And Drinking Water — Treated municipal drinking water, Surface water near manufacturing sites, Landfill leachate
BPA detected in most water supplies at low levels; bioaccumulation in aquatic organisms documented

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Bisphenol A:

Tritan (Eastman tritan copolyester)
Trade-offs: Higher cost than polycarbonate. Not suitable for all high-heat applications.

Relative cost: Lower (ingredient elimination)
Polypropylene (PP)
Trade-offs: Less transparent than PC. Not suitable for optical clarity applications.

Relative cost: Lower (ingredient elimination)
Inherently flame-resistant materials (wool, modacrylic, Nomex)
Trade-offs: Higher material cost. Limited color/texture options.

Relative cost: 1.2-2×
Barrier fabric technology
Trade-offs: Adds manufacturing step and cost

Relative cost: 1.2-2×
Tritan (PETG copolyester)
Relative cost: 1.2-2×
Glass
Relative cost: 1.5-3× (longer lifespan)

Frequently asked questions

Is bisphenol a safe for pets?

What products contain bisphenol a?

Bisphenol A appears in: Polycarbonate food containers and water bottles (Food contact materials); Epoxy resin linings in food and beverage cans (Food contact materials); Dental sealants and composites (Personal care and household products); Eyeglass lenses (Personal care and household products); Epoxy resin manufacturing facilities (Industrial and occupational settings).

Why do regulators disagree about bisphenol a?

Bisphenol A has been classified by 20 agencies including ECHA (EU), EFSA (EU), US FDA, US EPA, German BfR, 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 Bisphenol A in the pets app

Look up products containing bisphenol a, compare to alternatives, and explore the full data record.

Open in pets View raw API data

Sources (8)

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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 →