The people saying it isn't hard are right... it really isn't. What's hard is leaving everything you should be doing for the end of the day, then trying to cram in a whole head of broccoli with dinner. That said, fruit is delicious and nutritious...
very nutritious. You have to think about any family risk of diabetes, and frankly think about the long-term health of your teeth.
That said, 10 portions seems like moderation to me, assuming good dental hygiene.
Edit: Oh, and if you're eating that kind of thing, it helps not to eat too much high-salt, high-sugar foods along with them. It's like... trying to look for a rainbow under a floodlight.