Every month, the USDA calculates the average dollar amount families spend on food, based on food costs across the nation. These are covered at four different levels: thrifty, low-cost, moderate-cost, and liberal food plans. For example, as of December 2020, a male aged 65 spends an average of $40.50 (thrifty)/$82.30 (liberal) per week or $175.50 (thrifty)/$356.60 (liberal) per month.
Take a close look at your food budget compared to the USDA food plans by using the Grocery Budget Calculator at:
https://spendsmart.extension.iastate.edu/plan/what-you-spend/