drinking milk ¹ can lessen the chances of dying from illnesses such as coronary heart disease (CHD) and stroke by up to 15-20 %.
It's a meta study of more than 300 other works, and makes sense to me. Obviously you have to be careful when looking at studies like this, because they are more often than not bullshit, especially when quoted in or interpreted by the media, but I like this one. Some things just ring true to me, like the studies that say beer, wine, or bacon are good for you. Those are the ones I choose to believe. Or did I make the one about bacon up? Ok, well then the other two examples anyway.
I at least bet that eating zero bacon is correlated with poor health of some sort.