A series of Gallup polls released in the last week show Americans are changing their attitudes about their diets, sometimes ignoring scientific research.

Fewer people are attempting to limit sodium intake, although no research has invalidated its risks to health. In 2002, 45 percent of Americans tried to avoid salt, but that number dropped to 39 percent this year. The Centers for Disease Control and Prevention maintain that most Americans consume too much sodium, increasing risks of hypertension, stroke and heart disease.