Consumption of sugar drinks in the United States has increased over the last 30 years among both children and adults. Sugar drinks have been linked to poor diet quality, weight gain, obesity, and, in adults, type 2 diabetes. Higher-income persons consume fewer kilocalories from sugar drinks as a percentage of total daily kilocalories than do lower-income individuals. Ogden CL, Kit BK, Carroll MD, Park S. Consumption of sugar drinks in the United States, 2005–2008. NCHS data brief, no 71. Hyattsville, MD: National Center for Health Statistics. 2011. (http://www.cdc.gov/nchs/data/databriefs/db71.htm)