Raisins offer natural sweetness and antioxidants walnuts contribute Omega-3 fatty acids for brain and heart health. Almonds provide a hearty dose of Vitamin E and healthy fats for heart health. Pistachios bring a delightful crunch and more healthy fats to the table. Some nuts are higher in certain nutrients than others. The carb content of nuts is highly variable. nuts are generally an excellent food to eat on a low-carb diet. Nuts are high in fat, low in carbs, and a great source of several nutrients, including vitamin E, magnesium, and selenium.