Allaah said that his Prophet
Ibrahim (peace be upon him) said,
And He feeds me and quenches my thirst and when I fall sick then He (Allaah) cures me. [Soorah Shu'araa: 80].
Some scholars of Tafseer explain that there is a relation between what we eat and drink and falling sick since most people fall ill because of their diet. This could be a reason why Allaah mentioned that Ibrahim (peace be upon him) recognized that Allaah is the One who provides sustenance for us but that sickness is due to our own self and this is why sickness is mentioned after food and drink in this verse.