Which vitamin deficiency may exacerbate problems in people with winter pattern SAD?
                                
                                
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                                    4 min read                                
                            
                                According to the National Institute of Mental Health, many people with winter-pattern Seasonal Affective Disorder (SAD) have a vitamin D deficiency. This critical link between nutrient levels and mood regulation can exacerbate the characteristic symptoms of winter pattern SAD, a common mental health challenge during the colder, darker months. Understanding the role of specific vitamins is key to developing effective management strategies.