I have already mentioned the importance of 2 principals when choosing the wardrobe for your fridge. Go seasonal and try to bring a variety of foods in order to get the good amount of micro and macronutrients. Unfortunately cold winters in northern countries limit the number of fruits, berries and vegetables in-season. In this case the best you can do is to buy frozen packs. The latest research show that frozen broccoli is much higher in beta-carotene and vitamin C comparing to the off season broccoli stored for 3 days. Summer vegetables, fruits and berries in winter loose up to 50% of its nutritional value mostly because it is harvested before the peak nutrition is reached. It means those foods are lower in nutrients from the very beginning comparing to the full-ripe quick frozen ones. Vitamin C degrade with storage and transportation as well as some other important micronutrients. Finally, the widespread use of chemicals to conservate vegetables and berries for transportation make those foods worser alternative to frozen ones.
With frozen packs you also save time on cooking especially if we are talking about sides, soups, stews and curries. Don’t skip vegetables in winter. You don’t have to limit your diet with potatoes and bananas at the time of the year when your body is in desperate need of vitamins, minerals and phytonutrients.