Pistachio nuts are native to the Near East and Central Asia, but also grow in the Mediterranean and Southern United States. Appreciated for their flavor as well as their green color, pistachios are usually more expensive than other nuts. Pistachios can be eaten raw or roasted in their shells, states the Vegetarian Society. Pistachio nuts provide multiple health benefits.
B Vitamins
Pistachio nuts are high in vitamin B6, needed for healthy red blood cells. Pistachios provide 20 percent of the Daily Value of vitamin B6 per serving. Pistachios also offer 15 percent of the Daily Value of thiamin per serving, which is required for energy production. Pistachio nuts contain smaller amounts of other B vitamins, including folate, biotin, riboflavin, niacin and pantothenic acid, reports Pistachio Health.
Fiber
Pistachio nuts are a good source of fiber. A 1 oz. serving of pistachio nuts, or 49 nuts, contains approximately 2.9 g of fiber. Fiber is needed for the healthy functioning of the digestive system and may help decrease the risk of heart disease and diabetes. Men should aim to consume 30 to 38 g of fiber and women 21 to 25 g of fiber daily, states the Mayo Clinic. A daily serving of pistachio nuts will help you increase your fiber intake.
Eye Health
Lutein and zeaxanthin are carotenids important for good eye health. Pistachio nuts contain 342 mcg of lutein and zeaxanthin per serving, which is more than other nuts. Pistachio nuts also contain approximately 2 percent of the Daily Value of beta-carotene per 1 oz. serving, according to Pistachio Health. Beta-carotene is converted to vitamin A by the body and supports good vision.
Antioxidants
Pistachios contain large amounts of the antioxidants beta-carotene, vitamin E and lutein compared to other nuts. Evidence suggests including pistachio nuts as part of a moderate-fat diet increases blood levels of antioxidants, which contribute to a reduction in low-density lipoprotein -- LDL or "bad" cholesterol -- reports EurekAlert. LDL cholesterol is associated with clogged arteries and an increased risk of heart disease.
Weight Management
The protein, fiber and fat content of pistachio nuts makes them a healthy, filling snack and helps keep hunger at bay. Pistachio nuts are lower in fat and calories than other nuts, so you can eat more per serving. Even though pistachio nuts contain fat, replacing 20 percent of total calorie intake with pistachios does not lead to an increase in body weight, according to Pistachio Health. Pistachio nuts must be shelled before eating, which slows consumption. Discarded piles of shells remind people they have had a fulfilling snack.
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