“The US Department of Agriculture estimates that more than 20 million victory gardens were planted. Fruit and vegetables harvested in these home and community plots was estimated to be 9-10 million tons, an amount equal to all commercial production of fresh vegetables.” https://livinghistoryfarm.org/farminginthe40s/crops_02.html

That’s 3 pounds per person per week, or 1/3 of the total 12lb of vegetables per person consumed per week.

https://www.ars.usda.gov/ARSUserFiles/80400530/pdf/hist/bhnh...