carbs in walnuts how many
*Based on a 2,000 calorie diet. One ounce of walnuts (7 whole, 14 halves or 1/4 cup) contains 2.5 g of ALA and is about: 185 calories, 18 g fat, 1.7 g saturated fat, 4 g carbohydrate, 2 g fiber, and 4 g protein.The key to adding healthy fats like nuts to your diet is to manage your portion appropriately.