Do you get enough vitamin B12? You'll want to make sure that you do, in order to stay healthy.

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Vitamin B12 does a lot of things for your body. It helps make your DNA and your red blood cells, for example.

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Since your body doesn't make vitamin B12, you have to get it from animal-based foods or from supplements. And you should do that on a regular basis, because your body doesn't store vitamin B12 for a long time.