• Does a high-fiber diet prevent colon cancer in at-risk patients? 

    French, Linda; Kendall, Susan K. (Family Physicians Inquiries Network, 2003-11)
    There is no direct evidence of an effect of dietary fiber on colon cancer incidence. A diet high in fiber has not been shown to be effective in the short-term (2- to 4-year) prevention of recurrent colon polyps (strength ...
  • Double-dose vitamin D lowers cancer risk in women over 55 

    Schumann, Sarah-Anne; Ewigman, Bernard (Family Physicians Inquiries Network, 2007-11)
    Increasing the dose of vitamin D3 from the current standard of 400-600 IU per day to 1000 IU per day lowers future risk of cancer in women older than age 55 who do not get adequate vitamin D from sun exposure or diet. ...