A daily swig of milk from cows vaccinated against the bacterium Streptococcus mutans may help prevent cavities, according to findings by researchers at Kyushu University in Japan. The work was published in the May issue of Infection and Immunity.
The investigators gave rats a once-daily drink of concentrated bovine milk containing antibodies against S mutans (a bacterium strongly implicated as a cause of dental caries). Animals that received the immune milk had significantly less dental caries than control animals that received nonimmune milk.
Stephenson J. Combating Cavities. JAMA. 2002;287(22):2937. doi:10.1001/jama.287.22.2937-JWM20006-4-1