This article summarizes 5 approaches to reducing winter doldrums and weight gain. Bottom line: keep moving (maybe add a winter sport!), eat your veggies, heat up your breakfast (stir-fry or sauteed veggies with an egg or leftover chicken is wonderful), take your cod liver oil (3,000 mg EPA+DHA daily for most people), avoid alcohol (not only empty calories but reduces your metabolism significantly!). I disagree with the recommendation to eat more potatoes and grains–include occasional legumes instead. Read more here.