I usuall have porridge ,noodles.rice noodles .bread or buns

I usuall have porridge ,noodles.rice noodles .bread or buns for breakfast .为什么这里要 o
I usuall have porridge ,noodles.rice noodles .bread or buns for breakfast .为什么这里要 or 用而不是and?不是否定句才用or的吗?
I usually drink water .juic-----mild in the morning 里填什么?