We all know from Econ 101, the where supply and demand meet, that sets the "market price".
Because our federal .gov is subsidizing the demand side for groceries through various programs like WIC, SNAP, EBT card, food stamps, Illinois link card, grocery prices are artificially higher than they should be.
If I could wave a magic wand and POOF! all government "food stamp" programs went away, in about a month you would see noticeable drops in groceries prices.
So not only are you getting dinged once on your income taxes to pay for these leeches, you get dinged a third time at the super market's cash register because of the artificially inflated demand/higher grocery prices.
As a slight tangent, this propped up demand trickles down and props up corn, wheat, and soy bean prices.