I don't buy anything that says 'reduced fat' though there is no need for a rusty machete. Nor do I buy anything that says 'reduced sugar' - in most cases I look at the list of ingredients and choose something without sugar. It's not a 'health' thing, I just don't like my dinner to be sweet except when it is supposed to be, such as ice cream or cake, though even then I prefer to be able to taste the other ingredients rather than the whole thing being swamped by sweetness. 'Reduced sugar' usually means they have used artificial sweeteners, which are even worse.