When it comes to dietary fat, what matters most is the type of fat you eat. Healthy fats are necessary and beneficial for your health; however unhealthy fats raise your cholesterol and can harm your heart.
Rather than adopting a low-fat diet, it’s more important to focus on eating beneficial "good" fats and avoiding harmful "bad" fats. Fat is an important part of a healthy diet. Choose foods with "good" unsaturated fats, limit foods high in saturated fat, and avoid "bad" trans-fat.