Featured Research

from universities, journals, and other organizations

Antioxidants: Preventing Diseases, Naturally

Date:
September 13, 2007
Source:
Mayo Clinic
Summary:
When it comes to boosting antioxidant intake, recent research indicates there's little benefit from taking diet supplements. A better way, according to a report in the September issue of Mayo Clinic Health Letter, is eating a diet rich in antioxidant-containing foods. Antioxidants such as vitamins C and E, carotene, lycopene, lutein and many other substances may play a role in helping to prevent diseases such as cancer, cardiovascular disease, Alzheimer's disease and macular degeneration.

When it comes to boosting antioxidant intake, recent research indicates there’s little benefit from taking diet supplements. A better way, according to a report in the September issue of Mayo Clinic Health Letter, is eating a diet rich in antioxidant-containing foods.

Related Articles


Antioxidants such as vitamins C and E, carotene, lycopene, lutein and many other substances may play a role in helping to prevent diseases such as cancer, cardiovascular disease, Alzheimer’s disease and macular degeneration. Antioxidants are thought to help because they can neutralize free radicals, which are toxic byproducts of natural cell metabolism. The human body naturally produces antioxidants but the process isn’t 100 percent effective and that effectiveness declines with age.

Research is increasingly showing that those who eat antioxidant-rich foods reap health benefits. Foods, rather than supplements, may boost antioxidant levels because foods contain an unmatchable array of antioxidant substances. A supplement may contain a single type of antioxidant or even several. However, foods contain thousands of types of antioxidants, and it’s not known which of these substances confer the benefits.

Some of the better food sources of antioxidants are:

  • Berries: Blueberries, blackberries, raspberries, strawberries and cranberries
  • Beans: Small red beans and kidney, pinto and black beans
  • Fruits: Many apple varieties (with peels), avocados, cherries, green and red pears, fresh or dried plums, pineapple, oranges, and kiwi
  • Vegetables: Artichokes, spinach, red cabbage, red and white potatoes (with peels), sweet potatoes and broccoli
  • Beverages: Green tea, coffee, red wine and many fruit juices
  • Nuts: Walnuts, pistachios, pecans, hazelnuts and almonds
  • Herbs: Ground cloves, cinnamon or ginger, dried oregano leaf and turmeric powder
  • Grains: Oat-based products
  • Dessert: Dark chocolate

Though supplements containing antioxidants are generally considered safe, two recent studies have suggested that taking higher than recommended doses of supplements such as vitamin E over time may actually be harmful and possibly toxic.

In contrast, many foods higher in antioxidants offer an array of health benefits, such as being high in fiber, protein and other vitamins and minerals and low in saturated fat and cholesterol.


Story Source:

The above story is based on materials provided by Mayo Clinic. Note: Materials may be edited for content and length.


Cite This Page:

Mayo Clinic. "Antioxidants: Preventing Diseases, Naturally." ScienceDaily. ScienceDaily, 13 September 2007. <www.sciencedaily.com/releases/2007/09/070908001613.htm>.
Mayo Clinic. (2007, September 13). Antioxidants: Preventing Diseases, Naturally. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2007/09/070908001613.htm
Mayo Clinic. "Antioxidants: Preventing Diseases, Naturally." ScienceDaily. www.sciencedaily.com/releases/2007/09/070908001613.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Newsy (Nov. 22, 2014) For the first time Monterey Bay Aquarium recorded a video of the elusive, creepy and rarely seen anglerfish. Video provided by Newsy
Powered by NewsLook.com
Birds Around the World Take Flight

Birds Around the World Take Flight

Reuters - Light News Video Online (Nov. 22, 2014) An imperial eagle equipped with a camera spreads its wings over London. It's just one of the many birds making headlines in this week's "animal roundup". Jillian Kitchener reports. Video provided by Reuters
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Raw: Baby Okapi Born at Houston Zoo

Raw: Baby Okapi Born at Houston Zoo

AP (Nov. 20, 2014) The Houston Zoo released video of a male baby okapi. Okapis, also known as the "forest giraffe", are native to the Democratic Republic of the Congo in Central Africa. Video is mute from source. (Nov. 20) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins