[Symbiote]

> Most food is irradiated, yes.

No, far from it. Extremely little food is irradiated.

"103,000 tonnes of food products were irradiated on mainland United States in 2010"

"6,876 tonnes of food products were irradiated in European Union countries in 2013"

The average American consumes a tonne of food per year, and the average European probably isn't much different. That's 0.03% of food in the USA, and less than 0.001% respectively.

https://en.wikipedia.org/wiki/Food_irradiation