Seeds are a great source of healthy fats, vegetarian protein, fiber, and antioxidant polyphenols. Whole seeds are generally more nutritious than their processed form and can help reduce the risk of certain diseases. In particular, the lignans in some seeds may help lower cholesterol and reduce the risk of cancer, as well as reducing inflammation and oxidative stress. Seeds are an easy way to add healthy ingredients to your diet – add them to salads, yogurt, oatmeal, and smoothies, or eat them as a snack during the day.