Healthy Winter Foods

"Kale is a power source of a multitude of healthy nutrients, including beta-carotene, vitamin C, folate, iron, magnesium, and a number of phytochemicals," says Mitchell.

Served in salads, soups, and stews, cabbage and kale add flavor and zest to hearty winter recipes.

The Frozen Food Aisle

If it's not in season, fear not: While frozen or canned isn't exactly the real thing, it's not necessarily bad, either.

"I am a proponent of frozen and even canned foods," Moores tells WebMD.

If it's picked at optimal ripeness, processed quickly, and stored well, frozen or canned foods that aren't in season can be tasty in the winter.

"By and large I do think frozen and canned foods are a nice way to still get the taste of fresh foods without sacrificing nutrition," says Moores.

Summer Foods in Winter

These days, you can get almost any food during any time of the year, for the right price.

"I don't know if there's anything I've seen that you can only get in season from a grocery store," says Moores. "Of course, it'll probably be more expensive."

While you can find a plethora of foods year round if you're willing to pay the price, you might be sacrificing taste and nutrition.

"If you have strawberries in November or December, they're coming from very far away," says Moores. "While transportation is remarkable, the strawberries are being picked prior to their ripeness, so you sacrifice taste and some nutritional value. Tomatoes are another example: If you eat a tomato out of season instead of in season, there's no comparison.

"From a nutrition and taste standpoint, you have an advantage when you're eating seasonal food," says Moores. "It tastes good, it's got great nutritional value, and you're getting it at a good price."