Eating too many sugary, processed carbs and not enough good fats might make your body less responsive to insulin and mess up your cholesterol levels, which could raise your chance of heart disease—especially if you're older, female, don't move much, or are overweight.

Eating too much white bread, sugary snacks, and soda is linked to higher chances of developing insulin problems, bad cholesterol, and body-wide inflammation.

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.

People who eat low-carb or low-fat diets full of sugary foods and meat have a 14% to 20% higher chance of getting heart disease than those who eat similar diets but with healthier foods.

Eating too many animal products on a low-carb diet or too many refined carbs on a low-fat diet might raise your risk of heart disease by about 12 to 14% compared to eating healthier versions of those diets.

Eating low-carb or low-fat diets that are full of meat or sugary refined foods might raise your risk of heart disease by about 14% to 17% compared to eating healthier versions of those same diets.