Extra vitamin E protected older mice from getting common type of pneumonia

Extra vitamin E protected older mice from a bacterial infection that commonly causes pneumonia. The study found that extra vitamin E helped regulate the mice’s immune system. The older mice were fed a diet containing extra amounts of vitamin E, the equivalent to about 200 IU/day consumed by humans -- about 10 times the Recommended Daily Allowance but well below the upper limit -- were far more resistant to the bacteria than the older mice that had a normal amount of vitamin E in their diet.

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