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Zinc reduced lower respiratory infections

Zinc is an essential mineral for healthy development and immunity. In this study, 192 children who were low in zinc and other nutrients took 10 mg of zinc gluconate per day or a placebo for 60 days. Doctors followed the children for four months, keeping track of respiratory infections.

Compared to children in the placebo group, kids who took zinc were less than half as likely to have acute or severe lower respiratory infections. The children who took zinc also had more healthy days without infection, and recovered from infection far faster than kids who had taken the placebo.

Vitamin D reduced respiratory infection

Recent evidence has shown that vitamin D is important not only for developing bones, but also for strengthening immune systems. Because the body produces vitamin D from the sun, it is particularly important to maintain good levels in winter months. This study took place in a northern climate, where vitamin D deficiency is common in winter.

At the start of the study, all the 250 children who participated were very low in vitamin D. The children drank locally produced milk with or without 300 IU of added vitamin D per day. Over the course of the winter, parents of children in the vitamin D group reported about half the number of respiratory infections as parent of the kids in the placebo group.

In discussing their findings, doctors said the large benefit they saw was due to the very low levels of vitamin D at the start of the study, and suggest further study to determine the best level of vitamin D.

Reference: Clinical Nutrition; August, 2012, Electronic Prepublication

From the February 2013 newsletter

Van's Health on March - 20 - 2013
categories: Supplements, Vitamins

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