If you swap out fats in your food for sugary carbs like white bread or pastries, your blood sugar spikes higher after meals, which can make your body produce too much insulin over time—and that might raise your risk of heart disease.

If you swap out foods like butter and cheese for things like white bread and sugary snacks, it might raise your blood sugar and fat levels after meals, which could make your heart more likely to get sick.

If you swap out butter or oil for sugary white bread or pastries, it won’t lower your risk of heart disease—and might even raise it if you’re prone to blood sugar problems.

If you swap out fats in your diet—like butter or oil—for sugary white bread, pasta, or pastries, it won’t lower your risk of heart disease, and it might even make it worse if you’re prone to blood sugar problems.

If you swap out foods like butter and cheese for sugary snacks and white bread, it might make your heart health worse by raising bad fats in your blood, lowering good cholesterol, and making your body less sensitive to insulin—which could raise your chance of having a heart attack.

Eating less sugary, processed carbs and more healthy fats like those in nuts and olive oil might help lower your risk of heart disease, especially if you're older, female, not very active, or overweight.