‘No single fruit or vegetable provides all of the nutrients you need to be healthy’

The sentence means that

We should consume various kinds of fruits and vegetable
Discussion:
Vegetables and fruit are clearly an important part of a good pembatasan makanan . Almost everyone can benefit from eating more of them, but variety is as important as quantity. No single fruit or vegetable provides all of the nutrient you need to be healthy. The key lies in the variety of different vegetable and fruit that you eat.
  Tionghoa lokal, Dua Budaya Makan Dan Minum