April 23, 2014

Harvard Meta-Analysis Shows Magnesium Slashes Heart Disease Risk By 30 Percent

magnesium table1 Harvard Meta Analysis Shows Magnesium Slashes Heart Disease Risk By 30 Percent

by MAE CHAN
PreventDisease.com 

Multiple health benefits from the super mineral magnesium include transmission of nerve impulses, body temperature regulation, detoxification, energy production, and the formation of healthy bones and teeth. Now a new meta-analysis from Harvard School of Public Health also shows that increased circulating levels of magnesium may reduce the risk of cardiovascular disease.

Previous Studies

Findings published in the European Journal of Clinical Nutrition indicated that for every 50 mg per day increase in intake of the mineral, the risk of cancer was modestly reduced by 7%.

A notable study of more than 4,600 Americans, begun in 1985, found the risk of developing metabolic syndrome over the next 15 years was 31 percent lower for those with the highest intake of magnesium.

Supplements of magnesium may also improve sensitivity to insulin and help reduce the risk of diabetes. Daily supplements of the mineral for six months improved two out of three measures of insulin sensitivity, compared with placebo. Low magnesium status may actually exacerbate the symptoms of type 2 diabetes by further influencing insulin status

Data from 22 trials with magnesium supplements revealed that the mineral may reduce systolic and diastolic blood pressure, researchers from the University of Hertfordshire reported.

A diet rich in magnesium may help reduce the incidence of metabolic syndrome, the cluster of conditions that can lead to diabetes and coronary heart disease.

Current Study

Higher intakes of magnesium were also associated with benefits, with a 22% reduction in the risk of ischemic heart disease (IHD) reported by the Boston-based researchers.

The study, which combined data from 313,041 people, provides the “most robust evidence to date of the associations between circulating and dietary magnesium across their usual physiologic ranges and CVD risk”, wrote Dr Dariush Mozaffarian and his co-authors in the American Journal of Clinical Nutrition.

The researchers noted that the data related to dietary magnesium and their findings support an increase in consumption of magnesium-rich foods, such as whole grains, nuts/seeds, and vegetables, rather than supplements.

Consumer Need

With between 70 and 80% of the US population not meeting their recommended intakes of magnesium, consumers — and the health care professionals who advise them – are waking up to the importance of the mineral.

The National Institutes of Health (NIH) lists magnesium as being necessary for more than 300 biochemical reactions in the body, from helping maintain normal muscle (with potential for sports nutrition) and nerve function, to keeping heart rhythm steady, supporting a healthy immune system, and keeping bones strong. The mineral is also needed for blood sugar management, and healthy blood pressure.

The European Food Safety Authority (EFSA) has issued positive opinions on magnesium and the maintenance of normal bone, teeth, and protein synthesis; the reduction of tiredness and fatigue; electrolyte balance; normal energy-yielding metabolism; neurotransmission, and muscle contraction.

The agency was not convinced by claims about magnesium and blood glucose, blood pressure, stress relief, protection of DNA, proteins and lipids from oxidative damage, the immune system and fat metabolism.

Despite negative opinions from EFSA, a number of meta-analysis and high-profile studies have been published in recent years supporting the mineral’s benefits for metabolic pathways , blood pressure , reducing the risk of stroke , and reducing the risk of colon cancer .

Support

The new meta-analysis supports the potential heart health benefits of the mineral. Dr Mozaffarian and his co-workers identified 16 studies with data for 313,041 people.

After crunching the numbers, the researchers found that every 0.2 mmol/L increment increase in circulating magnesium was associated with a 30% lower risk of cardiovascular disease, but no significant association with IHD.

On the other hand, increasing dietary magnesium intakes were linked to a 22% lower risk of IHD.

The researchers noted that these observational studies cannot establish causality, and called for “additional experimental studies and randomized trials [...] to elucidate the roles of circulating and dietary magnesium, at usual physiologic concentrations and intakes, on CVD risk.”

THE TOP 5 HEALTH BENEFITS OF MAGNESIUM:
1. Magnesium may reverse osteoporosis
Multiple research studies conducted have suggested that calcium supplemented with magnesium improves bone mineral density. Magnesium deficiency alters calcium metabolism and the hormones that regulate calcium, resulting in osteoporosis. Intake of recommended levels of magnesium is important because it averts osteoporosis.

2.
Magnesium prevents cardiovascular diseases
One of the most important benefits of magnesium is that it is associated with lowering the risk of coronary heart diseases. Dietary surveys have suggested that sufficient magnesium intake may reduce the chance of having a stroke. Magnesium deficiency increases the risk of abnormal heart rhythms, which increases the risk of complications after a heart attack. Therefore, consuming recommended amounts of magnesium dietary supplements may be beneficial to the cardiovascular system.

3.
Magnesium regulates high blood pressure (Hypertension)
Magnesium plays a key role in regulating blood pressure naturally. Magnesium supplements and a diet including plenty of fruits and vegetables, which are good sources of potassium and magnesium, are consistently associated with lowering blood pressure.

4.
Magnesium treats diabetes
Studies show that individuals with a magnesium deficiency have a risk of developing type-2 diabetes and severe diabetic retinopathy. Magnesium aids in carbohydrate metabolism and influences the release and activity of insulin, thereby controlling blood glucose levels. It has been proven that for every 100 milligrams of increase in magnesium daily intake, there was a 15 percent decrease in the risk of developing type-2 diabetes.

5.
Magnesium treats migraines, insomnia, and depression
The numerous magnesium health benefits also include the treatment of migraines, insomnia, and symptoms of depression. Magnesium is also known to cure severe forms of psychiatric dysfunctions including panic attacks, stress, anxiety, and undue agitations. Magnesium supplements considerably reduce the severity of such attacks and may also help in reducing the rate of recurrence.


Sources:

American Journal of Clinical Nutrition

Read the Full Article Here: http://preventdisease.com/news/13/060113_Harvard-Meta-Analysis-Shows-That-More-Magnesium-Slashes-Heart-Risk-By-30-Percent.shtml

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