DR MARC SIEGEL: Iowa's cancer rate is rising. One answer may be found in the water

Iowa's cancer rate is 10% above the national average, and nitrates from fertilizer and manure in drinking water are drawing scrutiny from MAHA and RFK Jr.

Iowa's cancer rate is 10% above the national average, and nitrates from fertilizer and manure in drinking water are drawing scrutiny from MAHA and RFK Jr.