A new Food and Drug Administration study shows little evidence of antibiotic contamination in milk after surveying almost 2,000 dairy farms.
The agency in 2012 took samples of raw milk on the farms and tested them for 31 drugs, almost all of them antibiotics. Results released by the agency Thursday show that less than 1 percent of the total samples evidenced illegal drug residue.
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Antibiotics and other drugs can end up in milk when they are used on dairy cows to keep them healthy. Small levels of drugs are allowed in milk, but residues that go beyond certain thresholds are illegal.
The FDA said the agency will use the findings to try and reduce the drug contamination even more.