Salmon is one of the best natural sources of vitamin D. Just 3.5 oz. of cooked salmon supplies about 90 percent of your daily vitamin D needs. What's more, salmon is a great source of protein and heart-healthy omega-3 fats. Try to have at least one salmon dish every week. For a delicious dinner meal, try this Sizzling Salmon-and-Spinach Salad with Soy Vinaigrette.