According to a 2009 chemical analysis, there was fluoride in Kennedy’s bottled water. Each serving of Keeper Springs, this analysis determined, contained up to 1.3 milligrams of the mineral per litre. That’s a higher concentration than is found in most tap water.

Robert F. Kennedy Jr., who has advocated to remove all fluoride from public water within the first month of Donald Trump’s presidency, once sold bottled water flush with the very stuff he imagines is toxic.