I opened my freezer and saw a bag of frozen berries. Frozen berries are good! In fact, frozen berries may be more nutritious than fresh! The minute a berry is picked, it begins to lose nutrients, so how long after harvesting you eat it impacts its nutritional value. Most berries in our supermarkets have been transported a long distance over a lengthy period, and may contain less than half of the original nutrient content. On the other hand, berries frozen right after harvest preserve almost all of their vitamins and antioxidants and last up to one or two years.