It's how they say they care, and you can't hear somebody talk about their Mexican grandmother without saying "food" in the first sentence.
اینطوری بهتون اهمیت میدن، نمیشه یه نفر رو ببینین که از مامان بزرگ مکزیکی اش یاد میکنه،  بدون این که در جمله اول بگه "غذا"