It may be that the definition of "food insecurity" is broader than your intuition. Per Federal Reserve studies, ~10-15% of US households have no discretionary

It may be that the definition of "food insecurity" is broader than your intuition. Per Federal Reserve studies, ~10-15% of US households have no discretionary income after all essential expenses, which includes food. For people in this financial state, any unplanned expense will cut into their already limited budget for food. Even though they have food, and won't starve, this risk is likely sufficient to be deemed "food insecure". However, in practice this is often offset by the myriad USDA and other food subsidy programs. We received a lot of free food from the US government when I was a child, and I doubt the programs are less generous today. I definitely would have met the definition of "food insecure" at the time even though we always had food.