I think they refer to different things. I could ask why use the term "Hunger" rather than "Starvation" or "malnutrition" etc. Food security I think of as a me

I think they refer to different things. I could ask why use the term "Hunger" rather than "Starvation" or "malnutrition" etc. Food security I think of as a measure of the risk associated of available nutrient supplies not being adequate to meet the need (not the market demand, as that may differ) of people in a particular locality. Hunger is an end state feeling in a human-being when they feel the need to eat. You can have terrible food security and no hunger if there is tremendous risk of mass starvation due to small unforseen disruptions in supply, but there is existing supply and forecasted supply to meet demand if all goes well.