Healthy Aging Doctor Andrew Weil Increases Vitamin D Recommendation 12. February 2010 0 Senior Caregiving, Caregiving Issues (1) Dr. Andrew Weil, the founder and director of the Arizona Center for Integrative Medicine and a leading doctor in studying healthy aging, has increased his daily recommendation of vitamin D to 2,000 IU per day from 1,000. You can grab more vitamin D from sunshine, but for those of us who live in colder climates and stay indoors for much of the year, or for those who are not able to be outside as much because of medical conditions, Vitamin D must be found somewhere besides under the sun. When the sun is shining, just 10 to 15 minutes of exposure per day will help your body absorb vitamin D. Dr. Weil suggests taking vitamin supplements for the daily dose of Vitamin D, because the top foods delivering this vitamin, such as fortified milk, eggs, salmon and tuna, do not contain enough of it to increase blood concentrations to optimal levels. Many seniors are automatically prescribed vitamin supplements by their doctor but you should check to see your daily intake, especially if just a little more of a vitamin can prevent cancer and other diseases. The Moores Cancer Center at the University of California at San Diego conducted a meta-analysis study which combines data from multiple studies and determined that raising blood levels of vitamin D could prevent one-half of the cases of breast cancer and two-thirds of the cases of colorectal cancer in the U.S. Caregivers can assist their senior clients in monitoring their vitamin intake by using a Care Plan and medication tracking system and taking this information along to doctor's appointments.