[Machine] The Prophet ﷺ said, "Indeed, the son of Adam does not fill any vessel worse than his stomach. It is sufficient for the son of Adam to eat a few bites that will keep his back straight. If he must eat more, then let it be: one-third for his food, one-third for his drink, and one-third for his breath." Sahih.
أَنَّ النَّبِيَّ ﷺ قَالَ «مَا وَعَى ابْنُ آدَمَ وِعَاءً شَرًّا مِنْ بَطْنٍ حَسْبُ الْمُسْلِمِ أُكُلَاتٌ يُقِمْنَ صُلْبَهُ فَإِنْ كَانَ لَا مَحَالَةَ فَثُلُثٌ لِطَعَامِهِ وَثُلُثٌ لِشَرَابِهِ وَثُلُثٌ لِنَفَسِهِ» صحيح