Researchers have detected 3,751 magnesium-binding sites on human proteins, and more than 300 enzymes require the mineral, including those making ATP and glutathione, Mercola writes. He argues low cellular magnesium undermines metabolic function, citing studies tying it to elevated insulin.
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Minerals
Calcium, iron, magnesium, selenium, zinc and other minerals in the diet.
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Minerals
Iron in Meat Linked to Heart Disease
A Journal of Nutrition meta-analysis of 21 studies covering 292,454 people over an average of ten years found heme iron from meat linked to a 57 percent higher risk of heart disease, while non-heme iron from vegetables showed no relationship to risk or death.
Minerals
Study: Iron consumption can increase risk for heart disease (PR)
An Indiana University study in the Journal of Nutrition found heme iron, which occurs only in meat, was associated with a 57 percent higher risk of coronary heart disease, while non-heme iron from plant and other sources showed no such association.
Minerals
Higher calcium intake may reduce body fat, mitigating genetic risk for diabetes
Researchers analyzed DNA, nutrition data and body measures in 142 African American children aged 5 to 9 and found that getting the USDA-recommended calcium intake appeared to blunt the effect of some type 2 diabetes risk genes on body fat.
Minerals
Dementia news: Magnesium supplementation treats dementia
Two Turkish researchers writing in Medical Hypotheses propose that magnesium, used alongside drugs such as memantine, could be useful in treating dementia, citing studies showing magnesium acts on many biochemical pathways and can facilitate learning.
Minerals
Zinc supplements prevent diabetic retinopathy in type 2 diabetes mellitus
A review of 91 reports in the Journal of Diabetes Research suggests zinc supplements may help people with type 2 diabetes control glucose, and might protect the retina from oxidative damage, pericyte apoptosis, capillary leakage and neovascularization.
Minerals
Zinc, selenium supplements help prevent influenza infection in elderly people
In a two-year French trial of 725 nursing home residents over 65, those given low-dose zinc and selenium showed higher antibody titers after flu vaccination and fewer respiratory infections; vitamin takers had lower titers. Neither changed urogenital infections or two-year survival.
Minerals
Dietary calcium affects stroke risk in a dose dependent manner
Pooling 11 prospective studies covering 9,095 strokes, researchers found each extra 300 mg of dietary calcium a day was linked to 22% lower stroke risk in Asian participants and 18% lower among people eating under 700 mg daily, but 3% higher risk in those already at 700 mg or more.
Minerals
Organic selenium compounds more effective in fighting breast cancer
In mice injected with breast cancer cells, selenomethionine left the least growth at metastatic sites and methylseleninic acid had a moderate effect, while inorganic sodium selenite only briefly delayed tumor growth and raised kidney and bone metastasis. None stopped the disease.
Minerals
Calcium rich foods, calcium supplements cut death risk
A PLoS One study followed 3,139 Hong Kong Chinese aged 65 and older for a median 9.1 years. Those with the highest intake of calcium supplements and calcium-rich foods were almost 40 percent less likely to die of any cause and 30 percent less likely to die of cardiovascular disease.
Minerals
Calcium and Health (2)
The second part of a calcium fact sheet: observational data suggest total intakes above 1,500 or 2,000 mg a day may be associated with higher prostate cancer risk, though findings conflict and dairy is hard to separate from calcium itself. Evidence on calcium and cardiovascular risk is inconsistent.
Minerals
Calcium and Health (1)
A primer on calcium: it supports vascular contraction, muscle function, nerve transmission and hormone secretion, though under 1 percent of the body's supply covers those jobs. The rest sits in bone and teeth, where breakdown starts outpacing formation in aging adults.
Minerals
Low zinc intake means high risk of high systolic blood pressure
In 40 obese Korean women aged 19 to 28, dietary zinc intake was inversely associated with systolic blood pressure after adjusting for body weight, energy and sodium intake. Blood and urinary zinc levels showed no correlation with either systolic or diastolic pressure.
Minerals
Oral magnesium supplements lower systolic blood pressure in some hypertensive patients
Pooling seven studies of 135 hypertensive patients whose systolic pressure topped 155 mmHg and who had been medicated for at least six months, researchers found oral magnesium lowered systolic pressure by 18.7 mmHg and diastolic by 10.9 mmHg.
Minerals
Selenium supplements help critically ill patients
A meta-analysis of nine randomised trials in Journal of Critical Care linked intravenous selenium to 16% lower 28-day mortality in critically ill adults, with no significant effect at doses of 500 µg a day or less. The authors say the therapy needs further evaluation.
Minerals
Too much calcium can cause cardiovascular disease
A report in Nutrients warns that high calcium intake, whether from food or supplements, may raise the risk of arterial calcification and cardiovascular disease in older adults. The authors say high intakes have not improved bone density or cut fractures, and current recommendations may be too high.
Minerals
Trace Amounts of Copper Linked to Alzheimer's Disease
In mice and human brain cells, trace copper in drinking water at a tenth of the EPA standard built up in blood vessels, hampered the LRP1 protein that clears amyloid beta, spurred amyloid production and inflamed brain tissue. Researchers call this strong evidence copper plays a part in Alzheimer's.
Minerals
Magnesium helps prevent fatal coronary heart disease - study
Among 86,323 women in the Nurses' Health Study, those in the highest quintile of magnesium intake were 39% less likely to die of coronary heart disease than those in the lowest. Magnesium showed no link to total or nonfatal coronary heart disease.
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