What I didn't expect was that after so long on this diet, the old animal product foods I used to eat just don't seem like food anymore, so there's no feeling of deprivation.

Deprivation of all food and water as a form of prison punishment and torture, usually resulting in death of the prisoners.

Another cruel practice farmers often carry out is the deprivation of food from birds for fourteen days in order to shock their bodies into laying more eggs for human consumption.