Controversy and Robert F. Kennedy, Jr., seem to be constant companions. For instance, he's made comments against vaccines — although he said he wasn't anti-vaccination during his 2025 confirmation hearings for the position of Secretary of the Department of Health and Human Services. However, some of what Kennedy has said remains unquestioned, such as his admission of having had mercury poisoning during a 2012 deposition he gave.

While speaking, he said that he struggled cognitively due to ingesting significant amounts of tuna fish sandwiches over an unspecified period of time. Indeed, tuna usually contains mercury, and mercury ingestion has been known to lead to cognitive problems, as well as eyesight concerns and balance issues. But can eating a lot of canned tuna actually make you so

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