The impact of small food workshops management regulations on aflatoxin B in home-made peanut oil and the liver function of high-consumption area residents: an interrupted time series study in Guangzhou, China.

Background: Aflatoxin B (AFB), a potent carcinogen produced by species, is a prevalent contaminant in oil crops, with prolonged exposure associated with liver damage. Home-made peanut oil (HMPO) produced by small workshops in Guangzhou is heavily contaminated with AFB. Despite the enactment of the Small Food Workshops Management Regulations (SFWMR), no quantitative assessment has been conducted regarding its impact on food contamination and public health.