It is still "added value" and as such the price is bound to increase. It's like you don't get a donut with sprinkles for the same price as a plain donut. The sprinkles are "added value". 
Yes, but 2p per loaf ? bollocks to that.

And the difference is that if I choose to buy an ice cream and fancy sprinkles or a choc-flake thingy that is my choice and its fair that I should pay extra for it. I don?t see why the person in the queue behind me should pay more too?
It is basically a tax ? compulsory medication tax ? and I can?t believe that the tiny amounts they?ll be adding will cost 2p.