Winter's dark days can zap your mood and energy levels and result in a type of seasonal depression or "winter blues" affecting what, when and how you eat. While its cause remains unclear, diet plays a role in the prevention and treatment of depression.

Here are some tips to combat the winter blues from Giant Food Stores nutritionists.What we eat• Studies have shown that depressive symptoms are associated with overconsumption of sweets and fast food. Instead, reach for fruits and vegetables, fish, whole grains and olive oil, such as a Mediterranean diet pattern. Diets rich in these foods have been associated with a reduced risk of depression.• Omega-3 fatty acids have received a significant attention because of their positive impact on depression. Depressed individuals have been found to have lower levels of omega-3 fats in their blood work. In order to get enough omega-3 fats in your diet, eat foods such as fatty fish, walnuts and flaxseeds.• Check out the Savory Recipe Center online on the Giant website for recipe ideas.When we eat• Our brains rely on a consistent fuel supply in order to function properly so, eating small, balanced meals every 3-4 hours may help to keep blood sugar levels consistent. Going long periods without eating can cause blood sugar levels to drop, which may contribute to feelings of irritability or depression.How we eat• Recent studies have shown that negative and positive moods may lead to preferences for different types of food. A series of studies published in the Journal of Consumer Psychology finds that positive moods tend to increase our preference for healthy foods and negative moods increase our preference for indulgent foods. Taking a walk or meditating to boost mood may be effective strategies to improve mood and food choices.Studies have found that people with depression are at an increased risk for cardiovascular disease. With February being American Heart Month, making improvements in diet and lifestyle may not only benefit mood, but it could also decrease risk for developing cardiovascular disease.