The type of fat considered "bad" for heart health is referred to as saturated fat and trans fat. These fats can raise low-density lipoprotein (LDL) cholesterol levels in the blood, increasing the risk of heart disease. Foods high in these fats include processed snacks, fatty cuts of meat, and certain baked goods. In contrast, healthier options like monounsaturated and polyunsaturated fats, found in nuts and olive oil, can help improve heart health and overall wellness, emphasizing the importance of dietary choices.