“This graph shows percent of income spent on food at home and away from home in the United States since 1929. During the Great Depression, households spent a total of 15 to 20 percent of their income on food. Today, we spend about 10 percent of our income on eating at home and dining out.”
It is interesting to note that people are spending less on food (as a percentage of our income) although this is most likely due to rising incomes. However, there is no surprise that people have decreased the amount of money that they spend on home food while the percentage spent on eating out has remains relatively constant – which is most likely is a big contributor to obesity.
Reference: USDA Economic Research Service

