For 18 million Americans, fall and winter darkness means depressed mood and increased anxiety. The easy way to relieve symptoms of SAD - vitamin D!
Research studies have consistently shown a link between low vitamin D levels and increased risk of Seasonal Affective Disorder (SAD).
A clinical study looked at light therapy versus vitamin D as a treatment for Seasonal Affective Disorder. Half of the participants received light treatments for one month. Half of the participants received 100,000 IU of vitamin D at the start of the trial.
Results: All participants receiving vitamin D saw improvement (as measured by a standardized depression scale) while there were no changes in the depression scores of the people receiving light therapy.
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