Grass-Fed Milk

Consumers are faced with an ever increasing array of specialty farm products.  These products give consumers choices and give producers a chance to earn a premium for their product.  A Prairie Farmer Article this month is written about Grass-Fed Milk.  Since grass fed beef has found a niche among consumers, I am sure grass-fed milk will too.  The article does not mention intensive grazing, but that would seem to be imperative for maximum production.  I am curious if some of the pungent flavors found in some pastures come through into the milk.