4 key nutrients for optimal health Protect your health by including these nutrients in your regular diet: 1. Antioxidants (almonds, broccoli) can prevent cholesterol from damaging the linings of your arteries. 2. B vitamins (sweet potatoes) help reduce the risk of stroke and peripheral artery disease by lowering homocysteine levels. 3. Omega-3 fatty acids (salmon) can decrease your heart attack risk. 4. Dietary fiber (apples, red beans) helps lower your LDL ("bad") cholesterol level.