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Omega 3, Vitamin D may help fight cancer and provide protection from heart attack: VITAL clinical trial


Omega 3, Vitamin D may help fight cancer and provide protection from heart attack: VITAL clinical trial

Fish oils are well known for their omega-3 fatty acid and vitamin A and D rich content which has numerous health benefits. On the other hand, vitamin D is best absorbed by the body when taken with oil or fats. Prior studies have yielded mixed results of fish oil and vitamin D  in providing protection against cardiovascular diseases such as heart attacks, strokes etc, Now, a recent  VITamin D and OmegA-3 Trial (VITAL) has confirmed protective role of these nutrients against heart attack and cancer. The results of the trial will be presented at The North American Menopause Society (NAMS) Annual Meeting in Chicago.

So far, this is the largest updated pooled (meta) analyses including 26,000 U.S. men and women who have participated in the nationwide VITAL clinical trial. After more than five years of study and treatment, the results show promising signals for certain outcomes. For example, while Omega-3 fatty acids (fish oil) showed only a small, but nonsignificant, reduction in the primary cardiovascular endpoint of major CVD events, they were associated with significant reductions in heart attacks. The greatest treatment benefit was seen in people with dietary fish intake below the cohort median of 1.5 servings per week but not in those whose intake was above that level. In addition, AfricanAmericans appeared to experience the greatest risk reductions. The heart health benefits are now confirmed by recent meta-analyses of omega-3 randomized trials.

Similarly, vitamin D supplementation did not reduce major CVD events or total cancer incidence but was associated with a statistically significant reduction in total cancer mortality among those in the trial at least two years. The effect of vitamin D in reducing cancer death is also confirmed by updated metaanalyses of vitamin D trials to date.

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“The pattern of findings suggests a complex balance of benefits and risks for each intervention and points to the need for additional research to determine which individuals may be most likely to derive a net benefit from these supplements,” says Dr. JoAnn Manson, lead author of the study from Brigham and Women’s Hospital, an affiliate of Harvard Medical School.

“With heart disease and cancer representing the most significant health threats to women, it is imperative that we continue to study the viability of options that prevent these diseases and help women survive them,” says Dr. Stephanie Faubion, NAMS medical director.

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