Among more than 88,000 women followed for 26 years, those in the top quarter for dietary magnesium had a 34 percent lower adjusted risk of sudden cardiac death. Mercola adds that most Americans fall short of the recommended daily allowance for the mineral.
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Minerals
Calcium, iron, magnesium, selenium, zinc and other minerals in the diet.
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Minerals
Americans Consume Too Much Sodium (Salt)
Americans eat more sodium than recommended, and research shows a dose-dependent link between salt intake and raised blood pressure. The Institute of Medicine sets adequate intake at 1,500 mg a day and an upper limit of 2,300 mg; pressure starts falling within days to weeks when intake drops.
Minerals
High selenium linked to lower risk of bladder cancer
A meta-analysis of studies from the US, Belgium, Finland and the Netherlands linked higher selenium in serum and toenails to as much as 39 percent lower bladder cancer risk. The effect showed up mainly in women, which researchers attribute to sex differences in how selenium accumulates.
Minerals
Avoiding This "Forbidden Food" Could Make You Moody
Dr. Mercola defends unrefined natural salt as essential to blood plasma, nutrient transport, blood pressure regulation and nerve signalling, while agreeing processed foods carry far too much sodium. He notes salts differ widely by origin and processing.
Minerals
Adequate Zinc Eases Pneumonia in Elderly
In an analysis of nursing facility residents, those with normal blood zinc levels were about 50 percent less likely to develop pneumonia than residents with low levels, and they also had fewer antibiotic prescriptions, shorter pneumonia and lower mortality.
Minerals
Calcium supplements versus myocardial infarction: What you need to know
University of Auckland researchers pooled more than a dozen trials and epidemiological studies covering 11,921 participants followed about four years, and found people taking calcium supplements were 30 percent more likely to suffer a heart attack. None of them took vitamin D alongside the calcium.
Minerals
Calcium supplements boost myocardial infarction risk
A BMJ meta-analysis of 11 trials and five observational studies found osteoporosis patients taking calcium supplements without vitamin D were 30% more likely to have a heart attack. The link appeared in those whose dietary calcium already averaged above 805 mg a day.
Minerals
Americans eat too much salt: What you need to know
A CDC survey of 2005-2006 data found only 9.6 percent of US adults kept sodium within their recommended limit, with 5.5 percent under 1,500 mg a day and 18.8 percent of the rest under 2,300 mg. Studies have linked high intake to gastric cancer, osteoporosis and kidney stones.
Minerals
Sodium Intake Among U.S. Adults
CDC's analysis of 2005-2006 NHANES data found only 9.6 percent of US adults kept sodium within their recommended limit: 5.5 percent of those advised to stay under 1,500 mg a day, and 18.8 percent of other adults under 2,300 mg.
Minerals
Caution: Low Levels of This Key Mineral Could Shrink Your Lifespan ...
Mercola reports on research finding that men who ate the most calcium, nearly 2,000 mg a day and none from supplements, were 25 percent less likely to die over the next decade. Researchers suggest calcium may act by lowering blood pressure, cholesterol or blood sugar.
Minerals
Lower Salt Intake Lowers Cardiovascular Risk
A modeling study in the New England Journal of Medicine estimates that cutting daily salt intake by 3 grams would prevent 60,000 to 120,000 coronary heart disease cases, 32,000 to 66,000 strokes and 44,000 to 92,000 deaths a year, saving $10 to $24 billion.
Minerals
Consumers over age 50 should consider steps to cut copper and iron intake (PR)
A report in Chemical Research in Toxicology argues copper and iron build-up may contribute to Alzheimer's and other age-related disease after 50, and lists steps: skip supplements containing them, eat less meat, avoid water from copper pipes, donate blood and take zinc.
Minerals
Too much selenium linked to high levels of cholesterol
A Journal of Nutrition analysis of 1,042 UK adults found those with higher blood selenium had 8 percent higher total cholesterol and 10 percent higher non-HDL cholesterol. The study found only an association; whether selenium raises cholesterol is uncertain.
Minerals
Study Links Fluoride to Premature Births (press release)
A news release on SUNY research presented to the American Public Health Association: using 1993-2002 New York hospital data and adjusting for age, race, poverty, hypertension and diabetes, the researchers tied water fluoridation to higher preterm birth risk, most so among the poorest women.
Minerals
Iodine Supplements May Boost Children's Mental Power
In a New Zealand trial, 184 mildly iodine-deficient children took either 150 micrograms of iodine or a placebo daily for 28 weeks. Those given iodine scored better on two standard cognitive tests of problem-solving.
Minerals
Zinc Deficiency is a Global Concern
Mercola cites estimates that as many as 2 billion people eat zinc-deficient diets, including about 12 percent of Americans and perhaps 40 percent of the elderly, and a study finding DNA damage from only minor deficiency. He adds that existing zinc tests are poor.
Minerals
Magnesium: What you need to know
A primer on magnesium: the body holds about 35 grams, over 60 percent of it in the skeleton, and the mineral figures in hundreds of metabolic reactions. Deficiency is rare in healthy people but more likely with gut or kidney disorders, chronic alcoholism or older age.
Minerals
Drinking too much cola may induce potassium deficiency
Greek researchers reviewed cases of people who drank 2 to 10 quarts of cola a day and developed potassium deficiency, with effects from fatigue and muscle weakness to paralysis; one man who drank 10 quarts daily suffered lung paralysis. They suspect caffeine and sugar are involved.
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