Before becoming secretary of the US Department of Health and Human Services and leader of the Make America Healthy Again movement, Robert F. Kennedy Jr. was a swashbuckling environmental attorney who regularly took aim at the meat industry. For over a decade, a group of food safety, environmental, and animal welfare nonprofits has petitioned the US Food and Drug Administration which Kennedy now oversees " to ban the use of ... ractopamine hydrochloride. Fed to pigs in the final weeks of their lives, ractopamine speeds up muscle gain so that pork producers can squeeze more profit from each animal. But the drug has been linked to severe adverse events in pigs, including trembling, reluctance to move, collapse, inability to stand up, hoof disorders, difficulty breathing, and even death. Earlier this year, the FDA denied the petition to ban the drug. While 26 countries have approved ractopamine use in livestock, more than 165 have banned or restricted it, and many have set restrictions on or have altogether prohibited the import of pork and beef from ractopamine-fed animals. The bans stem primarily from concerns that the trace amounts of the drug found in meat could harm consumers, especially those with cardiovascular conditions. Given the lack of trials, ractopamine's threat to human health is unclear. But there's a clear case to be made that ractopamine ought to be banned because of its awful effects on animals.