I don't think either country is a net food exporter. The few sources seemingly suggesting Saudi Arabia as a net food exporter are misleading, and lack numbers for a net exporter claim. See, e.g., https://www.foodexport.org/export-insights/market-and-countr... (I initially misconstrued this Google hit because of the context), or the Wikipedia article, https://en.wikipedia.org/wiki/Agriculture_in_Saudi_Arabia ("In regards to self-sufficiency, the kingdom produced a limited surplus, sufficient to export some quantities of food.") By contrast, there are many sources with numbers (primarily by value, but much of that seems to be for inputs like grain, etc) showing Saudi Arabia to be a net importer. See, e.g. https://oec.world/en/profile/bilateral-product/foodstuffs/re...

That said, it does seem Saudi Arabia's balance of food trade seems very similar to Israeli's. And Saudi Arabia has extensive policies to promote domestic food production.