I can only give it four stars rather than five though because husband is in medical school and he says her investigative reporting is top level and EVERYONE needs to know the information about the food industry contained in the book (I agree) but he says her nutritional science information is not up to the same level and in some cases is ill informed or ill advised which makes it difficult for a person educated in the subject to take the rest of the book seriously
From one of the reviews.
To eloborate what haggisman said above, shopping around and cooking from scratch can be cheaper, better for you, tastes nicer and gives you the reassurance there is nothing dodgy in there.