Study Finds Why Some Supplements Might Be Risky - Spokane, North Idaho News & Weather KHQ.com

Study Finds Why Some Supplements Might Be Risky

Posted: Updated:
WASHINGTON (AP) - Antioxidant vitamins are widely assumed to be cancer fighters even though research in smokers has found high doses may actually raise their risk of tumors. Now a new study may help explain the paradox.
    
Swedish scientists gave antioxidants to mice that had early-stage lung cancer, and watched the tumors multiply and become aggressive enough that the animals died twice as fast as untreated mice.
    
The study, released Wednesday, concluded that the extra vitamins apparently blocked one of the body's key cancer-fighting mechanisms.
    
The scientists stressed that they can't make general health recommendations based on studies in mice, but said their work backs up existing cautions about antioxidant use in people at increased risk of cancer.

(Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)

  • Most Popular StoriesMost Popular StoriesMore>>

  • PHOTOS: Priest Lake lots auctioned off

    PHOTOS: Priest Lake lots auctioned off

    Thursday, August 28 2014 8:46 PM EDT2014-08-29 00:46:58 GMT
    PRIEST LAKE, Idaho - 61 cottages sites on Priest Lake were auctioned off in Coeur d'Alene on Thursday. >>
    PRIEST LAKE, Idaho - 61 cottages sites on Priest Lake were auctioned off in Coeur d'Alene on Thursday. For years, those already living on the sites leased the land from the State of Idaho, but the State was looking to sell. Residents already living on the sites showed up on Thursday to buy them back, and many were successful. 


    >>
  • Viral Video: Little boy's hysterical response to mother's pregnancy

    Viral Video: Little boy's hysterical response to mother's pregnancy

    Friday, August 29 2014 10:29 AM EDT2014-08-29 14:29:39 GMT
    KHQ.COM - When Shanee Gibson Hart of Fort Lewis, Washington, shared the news about her pregnancy with her son, Tré, she thought he would be thrilled. Instead, his reaction was a little different than expected. "This is exasperating!" Tré exclaimed. "Why you want to get another baby?...That doesn't make no sense!">>
    KHQ.COM - When Shanee Gibson Hart of Fort Lewis, Washington, shared the news about her pregnancy with her son, Tré, she thought he would be thrilled. Instead, his reaction was a little different than expected. "This is exasperating!" Tré exclaimed. "Why you want to get another baby?...That doesn't make no sense!"
    >>
  • Priest Lake Auction: Saying goodbye to home

    Priest Lake Auction: Saying goodbye to home

    Wednesday, August 27 2014 10:50 PM EDT2014-08-28 02:50:23 GMT
    PRIEST LAKE, Idaho - After years of obstacles for 61 Priest Lake lot lessees, the end comes on Thursday, August 28th. >>
    PRIEST LAKE, Idaho - After years of obstacles for 61 Priest Lake lot lessees, the end comes on Thursday, August 28th. People who have been leasing land from the state, some more than 40 years, will find out if they get to keep their property in an auction.Back in 2010, the State of Idaho decided to divest more than 300 lake lots on Priest Lake.
    >>
  • National NewsMore>>

  • UPDATE: Joan Rivers 'Resting Comfortably' at Mount Sinai in New York

    UPDATE: Joan Rivers 'Resting Comfortably' at Mount Sinai in New York

    Friday, August 29 2014 12:45 AM EDT2014-08-29 04:45:02 GMT
    NEW YORK (AP) - Comedian Joan Rivers is in a New York City hospital, according to police and hospital officials who say she was rushed there from a doctor's office after going into cardiac arrest.Rivers' daughter later issued a statement about her mother's condition.>>
    NEW YORK (AP) - Comedian Joan Rivers is in a New York City hospital, according to police and hospital officials who say she was rushed there from a doctor's office after going into cardiac arrest.Rivers' daughter later issued a statement about her mother's condition.
    >>
  • VA: No proof delays in veteran care caused hospital deaths

    VA: No proof delays in veteran care caused hospital deaths

    Tuesday, August 26 2014 9:11 PM EDT2014-08-27 01:11:37 GMT
    KHQ.COM- The Department of Veterans Affairs says there's no proof that delays in care caused any deaths at the VA hospital in Phoenix, Ariz.Revelations that as many as 40 veterans died while awaiting care rocked the agency this past spring, bringing to light scheduling problems and allegations of misconduct at other hospitals as well.NBC News obtained a draft report from the VA's Office of Inspector General Tuesday. The draft report says while investigators found substantial delays in care an...>>
    KHQ.COM- The Department of Veterans Affairs says there's no proof that delays in care caused any deaths at the VA hospital in Phoenix, Ariz.Revelations that as many as 40 veterans died while awaiting care rocked the agency this past spring, bringing to light scheduling problems and allegations of misconduct at other hospitals as well.NBC News obtained a draft report from the VA's Office of Inspector General Tuesday. The draft report says while investigators found substantial delays in care an...>>
  • UPDATE: Sergeant who shot herself at Fort Lee dies

    UPDATE: Sergeant who shot herself at Fort Lee dies

    Monday, August 25 2014 6:58 PM EDT2014-08-25 22:58:27 GMT
    Police officer patrols the entrance of Fort Lee in VirginiaPolice officer patrols the entrance of Fort Lee in Virginia
    FORT LEE, Va. (AP) - A commanding general at a Virginia Army base says an enraged soldier with a gun barricaded herself in an office, then shot herself in the head as officials tried to negotiate with her.>>
    FORT LEE, Va. (AP) - A commanding general at a Virginia Army base says an enraged soldier with a gun barricaded herself in an office, then shot herself in the head as officials tried to negotiate with her. Maj. Gen. Stephen R. Lyons says the soldier went on a rampage, throwing objects. >>