Although some studies seem to indicate vitamins and supplements, such as Omega-3 fatty acids, may be beneficial for heart health, other research is less supportive. Most experts agree that it’s better to get the vitamins and minerals you need from a nutrient-rich diet rather than supplements. There’s also a possibility that too much of a particular vitamin, such as vitamin D, may even be harmful to cardiovascular health. To determine if you’re getting everything you need, read Vitamins and Minerals.