Survey of Retail Milk Composition as Affected by Label Claims Regarding Farm-Management Practices

A trend in food labeling is to make claims related to agricultural management, and this is occurring with dairy labels. A survey study was conducted to compare retail milk for quality (antibiotics and bacterial counts), nutritional value (fat, protein, and solids-not-fat), and hormonal composition (somatotropin, insulin-like growth factor-1 [IGF-1], estradiol, and progesterone) as affected by three label claims related to dairy-cow management: conventional, recombinant bovine somatotropin (rbST)- free (processor-certified not from cows supplemented with rbST), or organic (follows US Department of Agriculture organic practices). [Excerpted from article]