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I'm up in Canada and have been supplementing with 4000iu a day in the winter to fight off SAD. This has led to a really painful rash on my hand and forced me to stop all supplements. Without the option of a lamp or natural sunlight is there anything else I could do to increase my vitamin D drastically? I'm currently eating more fish to try to help but it's not having much effect.

Asked by  echowonder on January 20, 2015

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