Eating trans fats doesn’t clearly raise or lower the risk of a certain type of stroke called ischemic stroke—the results are mixed and not reliable.

Eating more saturated fat doesn't appear to raise your risk of having a stroke, according to a review of 8 long-term studies of adults.

People who eat a lot of trans fats (especially from fried and processed foods) are more likely to die from any cause, but this doesn’t seem to affect their risk of stroke or diabetes clearly.

People who eat more saturated fat, like butter and red meat, seem to have a lower chance of dying from a stroke or having any stroke at all, but this might just be a coincidence — other studies with better methods don’t agree.

Eating more saturated fat from butter, meat, or cheese doesn’t clearly make people more likely to die early or get heart disease or diabetes, but the studies aren’t perfect, so we can’t be totally sure.

Eating more saturated fat from meat, butter, or cheese doesn’t clearly make people more likely to die early or get heart disease or diabetes, but the science isn’t strong enough to be sure.