The opposite claim of “Food X causes problem Y” is not necessarily “Food X reduces problem Y”. “It is not the case that (or “there is no evidence that”) Food X causes problem Y” also counts as “opposite”. That’s how I meant it: every time someone says “X causes Y”, there’s some other study that concludes that eh, actually, it’s not clear that X causes Y, and in fact probably doesn’t.
The opposite claim of “Food X causes problem Y” is not necessarily “Food X reduces problem Y”. “It is not the case that (or “there is no evidence that”) Food X causes problem Y” also counts as “opposite”. That’s how I meant it: every time someone says “X causes Y”, there’s some other study that concludes that eh, actually, it’s not clear that X causes Y, and in fact probably doesn’t.