Dr. John's Health Matters
Welcome to Dr. John's Health Matters blog.
The articles posted here are from various sources who are duly acknowledged. I would appreciate being immediately notified, if any copywritten material needs to be removed. This blog is not intended to replace the qualified advice of a licensed health practitioner. Readers should exercise their own judgment. Enjoy, subscribe, participate and tell others :)
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Posts tagged "mineral"
Tuesday, Sep 1st, 2009 ↓Antioxidants Not Associated With Increased Melanoma Risk →
Sept 1. 2009 (Sciencedaily.com)—Antioxidant supplements do not appear to be associated with an increased risk of melanoma, according to a new report.
A recent randomized trial of antioxidants for cancer prevention found that daily supplementation with nutritionally appropriate doses of vitamins C and E, beta carotene, selenium and zinc appeared to increase the risk of melanoma in women four-fold, according to background information in the article. Because an estimated 48 percent to 55 percent of U.S. adults use vitamin or mineral supplements regularly, the potential harmful effects of these nutrients is alarming, the authors note.
Maryam M. Asgari, M.D., M.P.H., of Kaiser Permanente Northern California, Oakland, and colleagues examined the association between antioxidants and melanoma among 69,671 women and men who were participating in the Vitamins and Lifestyle (VITAL) study, designed to examine supplement use and cancer risk. At the beginning of the study, between 2000 and 2002, participants completed a 24-page questionnaire about lifestyle factors, health history, diet, supplement use and other cancer risk factors.
Intake of multivitamins and supplements during the previous 10 years, including selenium and beta carotene, was not associated with melanoma risk in either women or men. The researchers also examined the risk of melanoma associated with long-term use of supplemental beta carotene and selenium at doses comparable to the previous study and found no association.
“Consistent with the present results, case-control studies examining serologic [blood] levels of beta carotene, vitamin E and selenium did not find any association with subsequent risk of melanoma,” the authors write. “Moreover, the Nurses’ Health Study reported no association between intake of vitamins A, C and E and melanoma risk in 162,000 women during more than 1.6 million person-years of follow-up.”
For full article, see link above.
Tags: antioxidant supplement vitamin mineral C e beta carotene selenium zinc cancer risk nutrient melanoma lifestyle multivitamin
Research Reveals Which Conventional Produce Can be Safely Eaten →
June 23, 2009 (NaturalNews.com)— The evidence is in. Eating a plant based diet is the key to health and longevity. The only question left is how to get the best value for each dollar you have to spend on fruits and vegetables. The Environmental Working Group, a non-profit organization devoted to human and environmental health, has come up with some guidelines that may help you decide. In a recently published listing, they pointed out those fruits and vegetables with the highest levels of pesticides that should be avoided unless they are available from known local growers, grown at home, or labeled as organic. They also identified which conventionally grown fruits and vegetables have low levels of pesticides and can be bought without too much compromise.
For full article see link above.
Tags: vegetarian vegan organic vitality longevity fruit vegetable antioxidant vitamin mineral pesticide herbicide
Study Shows Minerals Improve Cardiovascular Health →
Dec 02 09 (NaturalNews) Increased intake of mineral nutrients can decrease the risk of high blood pressure (hypertension) and cardiovascular disease, according to a study published in the Journal of Clinical Hypertension.
“If we were to achieve the correct potassium/sodium ratio through dietary means, there would be less hypertension and cardiovascular disease in the population as a whole,” study author Mark C. Houston said.
The researchers estimated that an increase in dietary potassium intake in the United States would decrease the prevalence of high blood pressure by 10 percent. Prior research has also suggested that consuming 500 to 1,000 milligrams per day of magnesium and 800 milligrams per day of calcium also helps maintain a healthy blood pressure.
For full article, see link above.
