FDR knew young men needed lots of good, healthy food. The CCC would feed enrollees three solid meals a day.
"In June 1937 alone, CCC camps in Sparta district went through approximately 88,000 pounds of fresh beef, 8,800 pounds of fresh bread, 100,000 pints of fresh milk, 175,000 pounds of potatoes, and 18,000 pounds of butter." (Apps 33)
("A typical day's food, the volume consumed and the cost, is shown on this menu for a Saturday in late June 1939" Semo 7)