South Africans I work with, of all races have said that. I'll be honest, I dont know but I'll take the words of many people who lived it every day for years.
With modern farming techniques, and a global world there should be no shortages, it won't massively effect us due to our climate, once we see panic set in like we did with 2020 toilet rolls, it'll be a shit show, be prepared, is all I'm saying.