Eating more monounsaturated fats — like those in olive oil or nuts — doesn’t seem to change your chances of dying from heart disease, at least in US adults when other lifestyle factors are accounted for.

Eating more foods like olive oil and nuts — which have healthy fats called MUFAs — might help people live longer and reduce their chance of dying from heart disease.

Eating foods rich in monounsaturated fats, like olive oil or avocados, doesn't seem to make heart disease risk higher or lower based on this analysis.

If you've already had a heart attack, eating more healthy fats like those in fish or nuts might not help you live longer — at least that's what one study found in American adults.

Eating saturated fat doesn’t seem to increase the risk of dying from heart disease in American adults, even after tracking over 45,000 people for many years — so cutting back on saturated fat alone might not help you live longer.

Eating more or less of different kinds of fats—like those in butter, olive oil, or fish—doesn’t seem to change your risk of dying from any cause, as long as you’re otherwise healthy and you account for other lifestyle factors.