Anas bin Malik (RadiyAllahu Anhu) reported: Messenger of Allah (Sallellahu Alaihi Wa Sallam) said: "Allah is pleased with His slave who eats a meal and praises Him for it; and takes a drink and praises Him for it".
One should always say "Al-hamdu lillah'' (all the praise and thanks be to Allah) after food and drink This Hadith holds fear as well as hope. If one remembers Allah in the meals, he can hope for the Pleasure of Allah. One should also bear in mind that it is He who gives everything. If He likes, He can forefeit all those things or in spite of providing all the riches, deprive one of hunger and thirst, as it does happen in certain diseases. May Allah protect us from such deprivations.