Heart healthy. The totally natural guilt-free snack. The most nutrient dense nut. One of the lowest calorie and lowest fat nuts. One of the highest fiber nuts. One of the highest antioxidant nuts (natural polyphenols). The highest Phytosterol nut. Scientific evidence suggests but does not prove that eating 1.5 ounces of most nuts, such as pistachios, as part of a diet low in saturated fat and cholesterol may reduce the risk of heart disease. Wonderful pistachios are grown using environmentally-friendly farming methods.