Is it normal to be told to eat only apples for an entire day? The doct…

Is it normal to be told to eat only apples for an entire day? The doctor said there's high protein in my urine and I have to eat only apples and collect my urine in a container, mix it, transfer it to another container for analysis and submit it for testing to see the daily protein level. Eating only apples for an entire day is simply not possible.