There are 4 total carbs in a one ounce serving but 3 of them are dietary fiber.
How Many Carbohydrates Are Present In Walnuts?
Very little, nuts of all varieties are mostly protein and fat in the form of natural oils that are good at lowering bad cholesterol much like olive oil.
In 1 oz of walnut there is 3.9g carbohydrates. Walnuts are low in carbohydrates but they are high in calories.