Several large dairy producers and food companies have made news recently by getting rid of recombinant bovine growth hormone, also known as rBGH or rBST, from their milk supply. This is great news for consumers, since this genetically engineered growth hormone is known to cause harm to cows and may pose health risks to humans. But in Missouri, things appear to be going backwards. SB 1279 is in the Missouri Senate and would restrict dairy labeling telling you whether your dairy was produced without the artificial hormone rBGH / rBST.