Walnuts are a nutritious snack that offers a variety of health benefits. Besides flavor, they are loaded with omega-3s.---Walnut Nutrient Facts- Calories: 183- Fat: 18g (mostly polyunsaturated)- Low in carbs (3.8g)- Fiber: 1.9g- Protein-packed: 4.3g- Low glycemic impact---Why Walnuts Are Great for You1. **Cardiovascular Support** Rich in ALA fo