Feb. 11 (UPI) -- Health and Human Services Secretary Robert F. Kennedy was joined by boxing legend Mike Tyson , medical experts and other Trump administration officials Wednesday as they laid out additional details about a revamped food pyramid they said will "fix" chronic health conditions among American children. Kennedy said the new food pyramid, announced in January, will help combat rising rates of obesity, diabetes and metabolic disorders among the nation's children. "This is not a small