Walnuts are a nutritious snack that delivers a variety of health benefits. Besides flavor, they are loaded with fiber and antioxidants.---Nutrition Overview (Per 1 oz)- Calories: 183- Healthy fats: 18g- Low in carbs (3.8g)- Rich in fiber: 1.9g- Protein-packed: 4.3g- Low glycemic impact---Why Walnuts Are Great for You1. **Cardiovascular Support**