"Try substituting fish into meals a few times a week," says Jackson Blatner. "Americans tend to eat less fish than people in other parts of the world, and they are missing out on great-tasting protein that's packed with omega-3s." Omega-3s support brain and heart health, two important considerations as you age. In fact, Mayo Clinic doctors believe that omega-3s reduce the risk of dying of heart disease.

Shunned for many years, eggs were believed to be bad for heart health due to high cholesterol levels. However, numerous studies have shown that intake of dietary cholesterol has little influence on blood cholesterol levels. In fact, the Harvard School of Public Health states that the biggest influence on blood cholesterol level is the mix of fats and carbohydrates in your diet — not the amount of cholesterol you take in from food.