Azodicarbonamide (ADA)
Also known as: ADA, Yoga mat chemical
Flour treatment agent / Dough conditioner
US-EU Regulatory Divergence
This additive has different regulatory status in the US and EU — what's permitted in one region may be restricted or banned in the other.
Regulatory Status
United States (FDA)
ApprovedFDA-approved for use in flour at up to 45 ppm. Known colloquially as the "yoga mat chemical."
European Union (EFSA)
BannedBanned in EU, Australia, and Singapore. EU bans it because a breakdown product (semicarbazide) is a potential carcinogen.
Safety Profile
Banned in most countries except the US. Subway famously removed it from bread in 2014 after public pressure. FDA maintains it is safe at permitted levels.
Health Concerns
- • Breakdown product semicarbazide is a potential carcinogen
- • Occupational exposure linked to asthma
- • Also used in foam plastics (yoga mats, shoe soles)
Commonly Found In
Sources: FDA Substances Added to Food, EFSA opinions, EU Regulation 1333/2008, IARC monographs
SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.