Nastaran is the sticky, sweet fruit of the palm tree, dates which are a traditional food and are eaten for their natural sugar, carbohydrates, protein and nutrient content. They are a healthy snack choice and are a rich source of energy, vitamins and minerals. 2.The benefits of this date include relief from constipation, intestinal disorders, heart problems, anemia, sexual dysfunction, diarrhea, abdominal cancer, and many other conditions. Dates are good for gaining weight also. Dates are rich in several vitamins, minerals and fiber too. These delicious fruits contain oil, calcium, sulfur, iron, potassium, phosphorous, manganese, copper and magnesium which are all beneficial for health. Some health specialists have said that eating one day per day is necessary for a balanced and healthy diet.