1 avocado a day for 6 months can improve brain function in senior citizens: Study
05/18/2018 // Ralph Flores // Views

There's a lot to be said of the health benefits of avocados. They are an excellent source of healthy unsaturated fats, as well as omega-3 fatty acids. In older adults especially, the fruits increase lutein levels in the brain and eyes which significantly improves cognitive functions, a study in the journal Nutrients reported. The study, conducted by scientists from Tufts University, found that for adults aged 50 and older, those who ate a fresh avocado a day had increased their lutein levels in their eyes and demonstrated improved working memory and problem-solving skills.

Lutein is a carotenoid found in yellow- and orange-colored fruits and vegetables like mangoes, corn, sweet potatoes, carrots, squash, tomatoes and dark, leafy greens such as kale, collards and bok choy. The carotenoid is famous for its ability to protect against common eye disorders such as cataracts and macular degeneration. In addition, lutein and zeaxanthin absorb harmful blue light from the sun, which can damage the retina. A further study of the compound revealed that it plays a role in preventing blood clots in the carotid artery in the neck, one of the indicators for atherosclerosis. In contrast, a deficiency in lutein showed a worsening of arterial clogging. Still, experts haven't fully explored its effects in the human body, including the best route for nutrient absorption.

In a study, participants added one medium avocado to their daily diet. The researchers then measure their lutein levels and any improvement in cognition using various tests for memory, processing speed, and attention level – where their results were compared with that of a control group, which had either one medium potato or a cup of chickpeas, in place of the avocado. Researchers used chickpeas and potatoes since both have a calorie level similar to that of avocados, but negligible amounts of lutein and monounsaturated fats. Based on the results, those who ate avocados had a 25 percent increase in lutein levels in their eyes.

Brighteon.TV

According to lead investigator Dr. Elizabeth Johnson, the results of the study point out to the avocado's ability to support lutein levels in the brain, which translates not only to improvements in eye health but for brain health as well. In particular, the use of fresh avocados was essential for increased lutein absorption – the results that the current study posted were twice higher than that of supplements, based on her previous research.

"A balanced diet that includes fresh avocados may be an effective strategy for cognitive health," she added.

The study, which was supported by the Hass Avocado Board, was based on the consumption of one whole avocado, which contains 369 micrograms of lutein. According to researchers, further studies are needed to replicate their results on smaller portions of avocados. (Related: Avocado nutrition facts - six things about this amazingly healthy superfood.)

"While the conclusions drawn are from a single study that cannot be generalized to all populations, the study's outcome helps to reinforce and advance the body of published research on avocado benefits and their role in everyday healthy living," concluded Dr. Nikki Ford of the Hass Avocado Board. "Avocados are a nutrient-dense, cholesterol-free fruit with naturally good fats, and are a delicious and easy way to add more fruits and vegetables to everyday healthy eating plans."

Learn more about the multiple health benefits of superfoods like avocados by going to Food.news today.

Sources include:

NaturalHealth365.com

News-Medical.net

DrWeil.com



Take Action:
Support Natural News by linking to this article from your website.
Permalink to this article:
Copy
Embed article link:
Copy
Reprinting this article:
Non-commercial use is permitted with credit to NaturalNews.com (including a clickable link).
Please contact us for more information.
Free Email Alerts
Get independent news alerts on natural cures, food lab tests, cannabis medicine, science, robotics, drones, privacy and more.
App Store
Android App
eTrust Pro Certified

This site is part of the Natural News Network © 2022 All Rights Reserved. Privacy | Terms All content posted on this site is commentary or opinion and is protected under Free Speech. Truth Publishing International, LTD. is not responsible for content written by contributing authors. The information on this site is provided for educational and entertainment purposes only. It is not intended as a substitute for professional advice of any kind. Truth Publishing assumes no responsibility for the use or misuse of this material. Your use of this website indicates your agreement to these terms and those published here. All trademarks, registered trademarks and servicemarks mentioned on this site are the property of their respective owners.

This site uses cookies
Natural News uses cookies to improve your experience on our site. By using this site, you agree to our privacy policy.
Learn More
Close
Get 100% real, uncensored news delivered straight to your inbox
You can unsubscribe at any time. Your email privacy is completely protected.