Is Milk from Cows Supplemented with rbST Safe for Me?

Yes. Consumers want to be confident that the products they purchase are safe for their families. Because today’s consumers generally have faith in the food offered to them by their local grocers, most do not even worry about the ins and outs of how their food is produced.

Watch the video below, to listen to Cris, a dairy farmer from Wisconsin, talk about milk safety!

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In a recent survey conducted by Luntz, Maslansky Strategic Research1, nearly 70% of people had never heard of or did not know about rbST. In fact, only 36 out of 1,000 (3.6%) survey respondents even mentioned “hormones” as something that they consider when making dairy purchasing decisions.

But, despite consumer confidence in dairy products and the fact that the FDA and other regulatory agencies around the world have determined rbST is safe, some individuals and organizations have raised fears and concerns over its safety and the healthfulness of dairy products made from cows treated with the supplement.

Click here to understand the scientific facts between some of the most common safety concerns including the links between IGF-1 and cancer, antibiotic resistance and the early onset of puberty or development.

The Posilac product label (pdf)Link opens in a new window contains complete use information, including cautions and warnings. Always read, understand, and follow the label and use directions.

To increase production of marketable milk in healthy lactating dairy cows, supplement lactating dairy cows every 14 days beginning at 57–70 days in milk until the end of lactation.

1 Luntz Mazlanksy. 2009. Reference Summary for Consumer Market Research.

Recent Research

An independent assessment on rbST titled “Recombinant Bovine Somatotropin (rbST): A Safety Assessment,” was released in July 2009.