This is a really interesting question. My answer is going to be a bit different that most peoples.
My husband and I live/work/own a permaculture farm. We raise most of our own food, including our meat animals.
Since we raise most of our own food, that means we also process and store our own food, so we can eat all year around. Most importantly though it means we are usually eating foods that are in season. We are not going to the grocery store and buying the fixings for salads in December, nor eating fresh cherries in January....those food items are not in season.
We feel it is important to eat what is actually in season. So we make exceptions at the grocery stores, and purchase food items we cannot grow on our farm, but we only purchase them when they are actually in season.
So in December we go to the store and purchase oranges, and enjoy them greatly, as they are in season, and being harvested then.
This past month I have been wolfing down leaf lettuce salads, with radishes, as that is what is coming up right now.
Most of the winter the only fruits we eat (besides the oranges) are the ones I canned in the summer, and early fall. So strawberry and blackberry jam all year around, but not the actual fresh fruit. In the winter, spring and part of summer, after the long term storage apples have been eaten, we will be munching on the apple slices I dehydrated.
We eat tons of sweet potatoes over the winter, as well as carrots, as they both store well.
So we keep our vitamins and trace minerals going all year around, but we are not "cheating" and eating out of season foods, other than ones we grew and put up in our pantry (and the few exceptions for items we cannot grow on our farm, like oranges).
So we go most of winter, and spring with no FRESH fruits and veggies, although we are still certainly eating plenty of them.
Most people now days don't actually have any idea what is in season, and when it will be in season. I think it actually makes your appreciation for, and enjoyment of, the fresh fruits and vegtables MUCH great if you are anticipating their emergence from the ground, and when you will get to start eating them. The first asparagus of spring...heaven!
Permaculture homesteading/farming over 20 years