Pistachios and Eye Health For Seniors.

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Pistachio, Lutein and Eyesight Protection for Seniors : Research Notes.

Summary. Multiple studies explore the potential health benefits of lutein and other nutrients for eye health, particularly in preventing or slowing age-related macular degeneration (AMD), a leading cause of blindness. Research suggests that lutein supplementation may increase macular pigment density, improving visual acuity and contrast sensitivity in individuals with early AMD. Pistachios are also highlighted as a potential functional food that may help protect against age-related vision problems. A comprehensive review examines lutein's impact on eye and overall health, including its potential benefits for cognitive function, cardiovascular health, and cancer risk, while also discussing its safety and dosage. However, the review also notes that conflicting data exist, and further research is needed to fully understand the effects of lutein.

Research / US National Library of Medicine / “The Effect of Lutein on Eye and Extra-Eye Health.” https://pmc.ncbi.nlm.nih.gov/articles/PMC6164534/

Article / NutraIngredients / “Lutein may benefit more elderly than thought.” https://www.nutraingredients.com/Article/2004/07/27/Lutein-may-benefit-more-elderly-than-thought

Article / Newsweek / “Pistachios May Help Prevent Blindness in Old Age, Reveals Scientist.” https://www.newsweek.com/pistachios-may-help-prevent-blindness-old-age-eyes-scientist-1975960

YouTube / Dr Rupa Wong / “Foods to protect your eyes.” https://youtu.be/zShTaM9JMLc?list=TLGGD4Tl9xeaswgxNTExMjAyNA

Pistachios, Lutein and Senior Eyesight Protection / FAQ:

What is lutein and why is it important for eye health?

Lutein is a type of carotenoid, a natural pigment found in plants. It's concentrated in the macula, the central part of the retina responsible for sharp, detailed vision. Lutein acts as an antioxidant, protecting the macula from damage caused by blue light and oxidative stress.

What foods are rich in lutein?

The best sources of lutein are dark green leafy vegetables such as spinach, kale, and collard greens. Other good sources include egg yolks, peas, broccoli, pistachios, and yellow and orange fruits and vegetables like sweet potatoes, cantaloupe, and apricots.

How much lutein should I consume daily for optimal eye health?

The average lutein intake in Western diets is around 1.7mg per day, but studies suggest that consuming at least 6mg daily can protect against age-related macular degeneration (AMD). The recommended dosage for lutein supplements is often 10mg per day.

Can lutein supplements improve my vision?

Lutein supplements can increase macular pigment optical density (MPOD), which is linked to a reduced risk of AMD and may improve visual acuity and contrast sensitivity in some individuals. However, results from studies are mixed and more research is needed to determine the extent to which lutein supplementation can improve vision.

What is age-related macular degeneration (AMD) and can lutein help prevent it?

AMD is a leading cause of vision loss in older adults. It damages the macula, causing blurry or distorted central vision and even blindness. Studies suggest that a diet rich in lutein may reduce the risk of developing AMD.

Can lutein also benefit my brain health?

Emerging research indicates that lutein may play a role in brain health. Lutein can cross the blood-brain barrier and act as an antioxidant, reducing inflammation in the brain. Studies have linked higher lutein intake to better cognitive performance and memory function.

Are there any side effects of consuming too much lutein?

Lutein from food sources is generally considered safe. High doses of lutein supplements, while not proven to be toxic, may cause harmless skin yellowing (carotenodermia). The recommended upper safety limit for daily lutein intake is 1 mg/kg body weight, according to the European Food Safety Authority.

Is it better to get lutein from food or supplements?

Ideally, you should aim to obtain sufficient lutein through a healthy diet rich in fruits, vegetables, and eggs. However, if your diet lacks these foods, lutein supplements can help bridge the gap. Consult your doctor or a registered dietitian for personalized advice on lutein intake.

end of FAQ

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