Dietary interventions with pistachios — a bioavailable source of the xanthophyll lutein — are efficacious in increasing macular pigment optical density (MPOD) in healthy adults, according to a new study from Tufts University and Tufts Medical Center. Pistachios are the only nut that provides a measurable source of lutein, a powerful antioxidant that helps protect the eyes. Image credit: Erika Varga. Lutein and zeaxanthin are dietary xanthophylls,...
