Columbia subject headings:
Food consumption--History--19th century.
Food consumption--History--20th century.
Harvard subject headings:
Food consumption--History--19th century--Congresses.
Food consumption--History--20th century--Congresses.
Food habits--History--19th century--Congresses.
Food habits--History--20th century--Congresses.
Nutrition policy--History--19th century--Congresses.
Nutrition policy--History--20th century--Congresses.
Princeton subject headings: