In a years-old deposition, Robert F. Kennedy Jr. claimed doctors informed him a parasitic worm had consumed a portion of his brain before expiring within his skull. Kennedy attributed his cognitive issues, including memory loss, to this condition. A second opinion revealed the brain abnormality was a deceased parasite, likely a pork tapeworm larva. Kennedy also received a diagnosis of mercury poisoning from excessive fish consumption, which is believed to have contributed to his severe mental fog. However, his campaign asserted that dietary modifications have fully resolved his symptoms without lasting consequences. Despite this medical history, RFK Jr. presents himself as physically superior to former President Trump and President Biden, highlighting his active lifestyle through social media.