Dietitians say pistachios improve heart health.

Moon claims pistachios contain more than 30 vitamins, minerals, and other benefits. Nearly 90% of pistachio fat is unsaturated.

Pistachios are an excellent plant-protein alternative to meat since they're cholesterol-free and high in fibre. 

The American Diabetic Association labels nuts a "diabetes superfood" because of their healthful fat and fibre content.

Pistachios include tocopherols, phylloquinone, carotenoids, chlorophyll, and flavonoids.

Pistachios are a heart-healthy snack since 90% of their lipids are unsaturated.

"Pistachio shells may slow you down," says Moon. Empty shells may help snackers eat deliberately.