My diet is very bland. It consists mostly of vegetables and fruit, though I do eat eggs and dairy sometimes. I don't consume processed food and things which contain sugar.
I eat like this because I believe the diet will give me a clearer mind. I also avoid bread and things made with flour (especially white flour) because they contain too many calories and not too many nutrients considering the former.
In the past few months I haven't eaten meat either, though I wouldn't mind eating it if there wasn't much to eat.
EDIT:
I forgot to talk about what I drink. I drink only water and milk. No sodas and certainly no alcohol.