Walnuts are a nutritious snack that delivers a variety of health benefits. Besides flavor, they are loaded with fiber and antioxidants.---Walnut Nutrient Facts- 183 calories per serving- Fat: 18g (mostly polyunsaturated)- Low in carbs (3.8g)- Rich in fiber: 1.9g- Protein: 4.3g- Low glycemic impact---Top Health Benefits of Walnuts1. **Cardiovascular