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Americans' eating habits have improved — except among the poor, evidence of a widening wealth gap when it comes to diet. Yet even among wealthier adults, food choices remain far from ideal, a 12-year study found. On an index of healthy eating where a perfect score is 110, U.S. adults averaged just 40 points in 1999-2000, climbing steadily to 47 points in 2009-10, the study found. Scores for low-income adults averaged almost four points lower than those for high-income adults at the beginning; the difference increased to more than six points in 2009-10. The results are published Monday in JAMA Internal Medicine.
Higher scores mean greater intake of heart-healthy foods including vegetables, fruits, whole grains and healthy fats, and a high score means a low risk of obesity and chronic illnesses including heart disease, strokes and diabetes. Low scores mean people face greater chances for developing those ailments. The widening rich-poor diet gap is disconcerting and "will have important public health implications," said study co-author Dr. Frank Hu of the Harvard School of Public Health. Diet-linked chronic diseases such as diabetes have become more common in Americans in general, and especially in the poor, he noted. "Declining diet quality over time may actually widen the gap between the poor and the rich," Hu said.