Among Americans aged 15 or older, the 58 percent majority purchased prepared food from a deli, carry-out, fast-food restaurant, or food delivery service in the past seven days. Here are the percentages by age...
Purchased fast food in past 7 days
Aged 15 to 17: 52.1%
Aged 18 to 24: 67.4%
Aged 25 to 64: 60.9%
Aged 65-plus: 42.3%
Source: USDA Economic Research Service, Americans' Eating Patterns and Time Spent on Food: The 2014 Eating and Health Module Data