A mix of major factors including the Russia-Ukraine war and impact on grain supplies there, as well as weather events like El Niño and La Niña and their impact on Latin American soy output, and the anti-EU farmers' protests which have disrupted supermarket supply chains, have been cause for alarm, European officials say. Of course there's also the example of how drastically a pandemic can interfere with supply chains. Panic buying was a trend and constant fear within the early months of the coronavirus crisis.

Bloomberg details of a conference held in Brussels last month that envisioned a 2024 to 2025 food shortage in Europe:

"…over two days in central Brussels last month, some 60 European Union and government officials, food security experts, industry representatives and a few journalists gathered to confront the possibility of something barely on the radar a few years ago: a full-blown food crisis."