A recent study led by researchers at Tufts University reveals that consuming pistachios can significantly improve eye health, specifically in protecting against macular degeneration, a leading cause of vision loss in older adults.
The research, which examined the effects of eating two handfuls of unsalted, shelled, dry-roasted pistachios daily, found notable improvements in macular pigment optical density (MPOD) within just six weeks. MPOD is a critical measure of the eye’s ability to filter light and protect the retina, and it is especially important for preserving sharp, central vision.
Pistachios are rich in lutein, a natural plant pigment that plays a vital role in protecting the eyes. Lutein, found abundantly in the retina, helps filter harmful blue light and reduces oxidative stress. In addition to its impact on the eyes, lutein also accumulates in the brain, potentially helping reduce inflammation and oxidative damage.
Dr. Tammy Scott, a neuropsychologist and lead author of the study, explained to New York Post, “Our study suggests that pistachios are not just a flavorful snack, but also an effective way to enhance lutein intake, which is essential for eye health.” Dr. Elizabeth Johnson, a co-investigator in the study, further emphasized the role of lutein in reducing oxidative stress in the retina and brain.
Macular degeneration occurs when the macula, the part of the retina responsible for sharp, central vision, deteriorates. While peripheral vision remains intact, individuals with this condition struggle with tasks like reading or recognizing faces. The Tufts University study demonstrates that pistachios could be an effective, simple dietary addition to help prevent this condition.
Beyond their benefits for vision, pistachios are also a heart-healthy snack. They support weight management, promote good gut bacteria, regulate blood pressure, and manage cholesterol levels, making them a valuable addition to a balanced diet.
For those looking to improve their eye health and enjoy a tasty, nutritious snack, pistachios may be an excellent choice.
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