This is pretty bizarre, though. My read on it is that it smacks of half-thought through somewhat good intentions, to be honest.
The OP does provide links that get you to the approved foods list, but it's here more directly in case anyone is interested;
https://idph.iowa.gov/Portals/1/userfiles/104/235_20_Approved Food List 7_1_2021 Final.pdf
The list is a set of 'healthy' food options, so in that sense I can see the intent of this bill, although it feels ridiculously prescriptive, and would either be extremely problematic, or simply ignored.
But the list of healthy foods is a supplemental list (it's not supposed to represent all foods eaten) and is aimed at the following group;
Pregnant, postpartum and breastfeeding women, infants, and children up to age five are eligible. They must meet income guidelines, a state residency requirement, and be individually determined to be at "nutritional risk" by a health professional.
Source and Further Reading :
WIC - Home
To assume that a list of healthy foods prepared for supplemental purposes for pregnant and postpartum women already judged at nutritional risk is good to go as a prescriptive list of foods for a general population on benefits is...well...half-arsed, poorly thought through, and completely lacking in effective planning and communication.
However, I don't see (on initial review) any evidence that this is being done due to hatred of poor people, etc.