A member asked:

How can i build my immune system up?

3 doctors weighed in across 2 answers

Immune system: Eat healthy and exercise regularly, and don't waste your money on supplements of doubtful value and effect.

Answered 8/12/2013

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Dr. John Chiu answered

No sure way.: Staying in good physical shape with regular exercises (not extreme exercises) and a healthy diet may be helpful. Make sure your plasma vitamin d3 level is optimal since vitamin d3 has been shown to be an important immune regulator. I would like to see the 25 oh vitamin d3 level to be around 50 to 60 ng even though the recommended level is around 30 ng.

Answered 12/10/2013

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