The pistachio, a member of the cashew family, is a small tree originating from Central Asia and the Middle East. The tree produces seeds that are widely consumed as food.
Pistachios are a Rich Protein Source. Most nutscontain large amounts of protein relative to their size, and pistachios are no exception. A 1-ounce serving of these nuts (approximately 49 pistachio kernels) contains 6 grams of protein (Self Nutrition Data, n.d.)