Pleasant bread — i.e., delicate food. Abstaining from this as well as from the use of oil (comp. 2 Samuel 12:20; Amos 6:6) were the outward signs of Daniel’s grief.
Related Commentaries of Daniel 10:3
Daniel 10:3
3 I ate no pleasantc bread, neither came flesh nor wine in my mouth, neither did I anoint myself at all, till three whole weeks were fulfilled.