The NIH article link you posted states: Food insecurity was determined by response (always/usually/sometimes) to the question,“How often in the past 12 months

The NIH article link you posted states: Food insecurity was determined by response (always/usually/sometimes) to the question,“How often in the past 12 months would you say you were worried or stressed about having enough money to buy nutritious meals?” I'm arguing about cost because food security in this survey is a cost issue. And, it's important to note that the article only covers 12 states. The Abstract ends with: "These findings are consistent with previous research and highlight the importance of increasing access to affordable healthy foods for all adults." My point is, we are instead increasing access for poor people to fast, unhealthy foods that cost more per calorie provided (Big Mac Meals) than healthy food (eggs).