The phrase "food abundance" means having a lot of food available. It suggests that there is plenty of food to eat and not a shortage of it. Full definition
When this period of food abundance began, the world had 2.5 billion people. (earth-policy.org)
This change in food abundance happened at the same time as the fall in adult cod populations. (sciencemag.org)
We now live in a society that enjoys food abundance: with 24 - hour convenience stores and fast food restaurants at our disposal, we rarely go hungry. (taliand.com)