Grow more, save more, eat less, deny yourself. Nationalism abound, for the first 50 years of the 20th century, there was a call for patriotic participation among Americans to consume less in order to feed US troops and allies during World War I and World War II. Post WWII, advances in food technology, commercial canning, freezing and processing along with the availability of refrigeration in the home ushered in the period of bounty, and ultimately excess, through the second half of the century.