A serving of pistachios provides about 37 percent of the recommended daily vitamin B-6 intake. Pistachios are one of the lowest calorie nuts, which means people can enjoy the health benefits of nuts while more easily staying within their daily calorie limits. Research reports that pistachios have among the highest levels of antioxidants including: – Gamma tocopherol – phytosterols – xanthophyll carotenoids These substances have high antioxidant and anti-inflammatory effects. Eating a healthful diet, including pistachios, is a promising way to help prevent these eye diseases from developing. Pistachios are rich in fiber, which encourages a healthy digestive system by moving food through the gut and preventing constipation.