Why isn't her father on jojoba oil if he is still fighting acne?
BTW... this just came out about beta-carotene
June 30, 2003 - United States Preventive Services Task Force (USPSTF)
guidelines, published in the July 1 issue of the Annals of Internal
Medicine, state that there is insufficient evidence to recommend for or
against vitamins A, C, and E for the prevention of cardiovascular disease
(CVD) or cancer. However, they recommend against the use of beta-carotene
because two studies show an increased risk of cancer.
"The findings of these USPSTF reviews must be placed in context because they
focused only on vitamin supplements and their role in preventing cancer and
cardiovascular disease," the task force writes. "Definitive evidence of the
role of vitamin supplementation on altering cardiovascular outcomes is
lacking."
After reviewing data from the Cochrane Controlled Trials Registry, MEDLINE
from 1966 to September 2001, reference lists, and experts, the USPSTF
concluded that the evidence is not strong enough to recommend for or against
use of supplements of vitamins A, C, or E, multivitamins with folic acid, or
antioxidant combinations for the prevention of cancer and CVD.
Lack of clear, consistent benefit from vitamin A and C supplements does not
support future randomized clinical trials, according to the authors. For
vitamin E, basic science, animal studies, and nutritional surveys all
suggest a potential benefit, but this was not confirmed in controlled
trials. An ongoing secondary prevention trial should help determine the
value, or lack thereof, of folic acid, B6, and B12.
Although some good-quality cohort studies showed an association between use
of vitamin supplements and decreased risk of CVD, randomized controlled
trials of specific supplements did not show any significant or consistent
effect on cardiovascular mortality. Evaluating the reasons for these
differences in findings should facilitate design of long-term clinical
trials, the authors note.
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