Are we eating healthy food?

An article in a leading news paper states that including branded products, sold in retail food market seem to be adulterated. Right from the fresh fruits and vegetables to all groceries is adulterated these days.
· Green leafy vegetables contain toxic metals - due to industrial pollutants absorbed by the plants.
· apples coated with wax to increase their shelf life and reduce shrinkage
· Powdered pepper with wheat flour
· Asfoetida powder with powdered rice
· Cheap soya oil with sun flower oil
· Foreign leaves added to tea...so many like these...

The task of ascertaining the purity of the food consumed by people continues to be time consuming. Fresh fruits and vegetables were an alternative when groceries were contaminated in the name of adulteration. But what to eat now when fresh foods are contaminated? Why d they spoil the natural food in the name of business? Don’t they realize even their kith and kin are affected by this? The situation has changed from 'eat food to be healthy' to 'eat healthy food to at least live your life for a while.
If anyone of you comes to know the methods of checking the fresh fruits adulteration, please share it with us too.