From Longman Dictionary of Contemporary Englisha diet of somethinga diet of somethingAMOUNTtoo much of an activity that you think is boring or has bad effects Kids today are raised on a constant diet of pop music and television. → diet
Examples from the Corpus
a diet of something• Realistically, she thought, there's only one way to avoid a diet of non-stop cabbage - or worse.• Feed a diet of insects, worms, plant matter, flake food and freeze dried food.• No one can live on a diet of culture that is completely alien.• Without the operation, Laura, who had lived on a diet of liquid protein, would not have survived much longer.• Most models are very strict about what they eat, and they would not last long on a diet of cheeseburgers.• Growth is rapid, on a diet of tiny larvae, worms and relatives.• The fry grew rapidly on a diet of brine shrimp and Liquifry.• The other option, of course, would have been to survive on a diet of the same bananas until help arrived. 