Columbia subject headings:
Food habits--Research--United States--Marketing.
Lifestyles--United States.
Social status--United States.
Harvard subject headings:
Princeton subject headings:
Food habits--Research--United States--Marketing.
Health promotion--United States.
Lifestyles--United States.
Poor--Health and hygiene--United States.
Social status--United States.
Working class--Health and hygiene--United States.