Pistachios have a high vitamin B6 content and are among the lowest-calorie nuts. Rich in Vitamin A , calcium and minerals. Pistachios are a member of the cashew family from Central Asia and the Middle East. The tree produces seeds that are widely consumed as food. Salted pistachios in shells commonly used with drinks. Pistachios are most commonly used in Indian and Middle eastern desserts. Pistachios are edible seeds that contain healthy fats, protein, fiber, and antioxidants. Loaded with nutrients, high in antioxidants, promote gut bacteria, low in calories yet high in protein.