People who eat more dairy—like milk, cheese, and yogurt—tend to have a slightly lower chance of dying from heart disease than those who eat very little dairy.

Eating a little dairy might be good for you, but eating a lot might not help—or could even hurt—your health; the sweet spot isn’t the same for everyone.

People who drink whole milk regularly may be a bit more likely to die from any cause, heart disease, or cancer than those who drink skim or low-fat milk — but this doesn’t mean milk is the direct cause.

Eating a lot of full-fat dairy like cheese and butter might be linked to a higher chance of dying from cancers other than breast cancer — and it could be because it harms your heart or metabolism, not just because it feeds cancer.

Eating dairy overall doesn’t seem to make breast cancer come back or kill more women from breast cancer, but it might be linked to dying from other causes — and that’s probably because the bad stuff (like full-fat dairy) is hiding in the average.

Eating dairy products like milk and cheese doesn’t seem to make breast cancer come back or kill more women from breast cancer, but people who eat a lot of dairy tend to die sooner from other causes — probably because of the fat in dairy, not the dairy itself.