Walnuts serve as a nutritious snack that offers a variety of health benefits. Beyond being tasty, they are loaded with heart-healthy fats.---Nutrition Overview (Per 1 oz)- 183 calories per serving- Healthy fats: 18g- Low in carbs (3.8g)- Fiber: 1.9g- Protein: 4.3g- Low glycemic impact---Why Walnuts Are Great for You1. **Cardiovascular Support**