If you swap out trans fats (like in fried foods) for healthy fats like those in fish or nuts, your risk of heart disease drops a lot—what you replace it with matters more than just cutting fat.

If you swap out a little bit of butter or fatty meat for foods like nuts or vegetable oils, you're less likely to have a heart attack or die from heart disease.

If you swap just a little bit of butter or fatty meat in your diet with healthier fats like those in nuts or fish, you might lower your bad cholesterol and reduce your risk of heart disease by a small amount.

Eating a moderate amount of healthy fats—like those from fish and plants—may help lower your risk of heart disease by improving your blood fats and reducing body inflammation.

People who eat more artificial trans fats—like those in fried and baked goods—have a higher chance of having a heart attack or dying from heart disease.

Even when researchers accounted for how many total calories people ate or how much other fats they consumed, the link between saturated fat and heart disease still didn’t show up.