Pistachios

As the only nut to contain any significant amounts of lutein and zeaxanthin, pistachios are the eye-friendliest of snack nuts.  They provide lutein and zeaxanthin and also pack in significant amounts of vitamin E. The mono and polyunsaturated fats in pistachios also help boost the absorption of carotenoids. In fact, a study found that those who added pistachios to their diet significantly boosted levels of lutein.

See More: Healthy Nuts: An A-Z Guide