10 Proven Ways How to Boost the Immune System

9. Get some sunshine

Vitamin C, Vitamin E, and Vitamin B6 are all important- but so is Vitamin D. During the winter it may be hard to open the door and force yourself out into the frozen tundra, but it is necessary for a healthy immune system.[9] Just 15 to 20 minutes of sunlight everyday will give you the dose you need. But be careful to not overdo it- too much could give you sunburn and increase your risks of skin cancer.

What it does: Lower levels of vitamin D have been associated with a higher risk of respiratory infection. There are some foods you can get Vitamin D from such as cod liver oil and egg yolks, but the sun is by far the cheapest and most accessible source.
The Vitamin D Guide Infographic

Image Source: Natural Newsnaturalnews

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