If you're on the keto diet, you may have noticed that your LDL cholesterol levels have increased. While this may be alarming at first, it's important to understand that this is not necessarily a bad thing. Cardiologists agree that the increase in LDL cholesterol levels is due to the high-fat content of the diet and that this is not necessarily a cause for concern. In fact, some cardiologists believe that the increase in LDL cholesterol may actually be beneficial, as it can help to reduce the risk of heart disease.