Eating more cholesterol raises both 'bad' and 'good' cholesterol a little bit, but doesn't change their ratio much, which is important for heart health.

Eating cholesterol doesn’t reliably raise bad cholesterol, and when it does, it also raises good cholesterol just as much, so your overall heart risk doesn’t change.

Eating fewer carbs might raise your 'good' cholesterol a little, especially if you replace them with fats or proteins, but it could also raise your 'bad' cholesterol, so it's not clear if this is truly helpful for your heart.

Eating cholesterol doesn’t always raise your bad cholesterol, and when it does, it often raises your good cholesterol too, so your overall heart risk doesn’t change.

People who are overweight and eat a low-carb diet end up eating more cholesterol over time—way more than the old health guidelines recommended—but their bad and good cholesterol levels, and triglycerides, didn’t get worse. This suggests that eating more cholesterol might not hurt your heart like we used to think.

When you eat more cholesterol, both your bad and good cholesterol go up together, so the balance between them stays the same—and that balance matters more than the total amount.