The cold depths of winter can bring on the worst of moods for even the most optimistic of people. In these winter months, it is important to know that there are measures one can take to improve their mood. “In the winter we are exposed to less sunlight, so we produce fewer endorphins and feel less happy,” says one of The Nutrition Twins, Tammy Lakatos. Certain foods and supplements can restore balance to the body and provide essential nutrients, uplifting mood from the inside out. The Nutrition Twins® were on Good Morning America Health to share some great ways to boost your mood this winter.