Different issues: Vitamin d deficiency is common in the us due low exposure to sun, low milk consumption and obesity. If you are deficient in vitamin d you can take over the counter supplement. Exercise intolerance can be due to many causes from lack of physical activity to many systemic disorders and you should consult your doctor.
Answered 12/26/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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