Walnuts are loaded with essential omega-3 fatty acids, making them a personal favorite of our Registered Dietitian and Health Nut. These English walnuts have about 2.5 grams of omega-3 fats per serving, specifically alpha linolenic acid (ALA). Plus, walnuts are an excellent source of fiber, magnesium, protein, and phosphorus, as well as the antioxidant selenium. Research shows that walnuts can help protect against cardiovascular, neurological, and anti-carcinogenic diseases, which is likely due to their ability to control free radicals.