Baby Safety / Compounds / Trehalose

Is Trehalose safe for babies and kids?

Moderate risk for kids

Not medical or professional safety advice, and not a substitute for a qualified clinician — consult one. Full disclaimer →

Infants are more vulnerable to Trehalose 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 trehalose?

The IUPAC name is (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-3,4,5-triol.

Also known as: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-3,4,5-triol, D-(+)-Trehalose, Mycose, alpha,alpha-trehalose.

IUPAC name
(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-3,4,5-triol
CAS number
99-20-7
Molecular formula
C12H22O11
Molecular weight
342.3 g/mol
SMILES
C(C1C(C(C(C(O1)OC2C(C(C(C(O2)CO)O)O)O)O)O)O)O
PubChem CID
7427

Risk for babies

Moderate risk

Infants are more vulnerable to Trehalose 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 Trehalose, 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

3 regulatory and scientific bodies have classified Trehalose. The classifications differ — that's the data.

AgencyYearClassificationNotes
US FDA2020no carcinogenicity classification; FDA GRAS (GRN 000045); EFSA novel food authorization; fully caloric disaccharide (4 kcal/g); Collins et al. 2018 C. difficile ribotype 027/078 epidemiological signal — causality disputed, regulatory status unchanged; not classified by IARC, NTP, or EPA for carcinogenicity
EPA CTX / Genetox—Genotoxicity: negative (Ames: negative, 0 positive / 4 negative reports)
EPA CTX / Genetox—Genotoxicity: negative (Ames: negative, 0 positive / 4 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 trehalose

  • Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
  • Occupational Environments — Factories, Warehouses, Transportation vehicles
  • Consumer Products — dietary supplements, fortified foods, energy drinks

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Trehalose:

  • Ester quats (diethyl ester dimethyl ammonium chloride)
    Trade-offs: Slightly different performance feel
    Relative cost: 1.2-2×

Frequently asked questions

Is trehalose safe for kids?

Infants are more vulnerable to Trehalose 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 trehalose?

Trehalose appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments); dietary supplements (Consumer products).

What should I do if my child is exposed to trehalose?

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 trehalose?

Trehalose has been classified by 3 agencies including US FDA, 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 Trehalose in the baby app

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

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Sources (1)
  1. FDA GRAS GRN 000045 Trehalose Cargill Hayashibara 2000; EFSA Novel Food Authorization; Collins et al 2018 Science Clostridioides Difficile Ribotype 027 078 Trehalose Catabolism Hypervirulent; Causality Disputed Regulatory Status Unchanged; Intestinal Trehalase Digestion to Glucose; Lyoprotectant Lyophilized Biologics Monoclonal Antibodies; Alpha Alpha 1-1 Glycosidic Bond; No IARC NTP EPA EFSA Carcinogenicity Classification (2020) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for medical, pediatric, legal, or regulatory advice. Why we built ALETHEIA →