Secretary of Health and Human Service Robert F. Kennedy Jr. speaks about new dietary guidelines during a briefing for reporters at the White House in Washington, on Wednesday, Jan. 7, 2026. In a striking reversal of past nutrition guidance, the Trump administration released new dietary guidelines that flip the food pyramid on its head, putting steak, cheese and whole milk near the top. (Eric Lee/The New York Times) By ALICE CALLAHAN and DANI BLUM In a striking reversal of past nutrition...