Some vegetables can survive the cold, even under a blanket of snow. These are known as winter vegetables due to their ability to withstand harsh weather.

Eating in-season need not be reserved only for spring, summer, and fall.

Cold-hardy varieties can withstand frosty temperatures through several adaptations, including increasing their sugar content. These sugars help lower the freezing point of their cells, allowing them to survive in colder weather.

This process results in cold-hardy vegetables tasting sweeter in the cooler months, making winter the optimal time for harvest.

This article takes a look at 10 of the healthiest winter vegetables and why you should include them in your diet.

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This leafy green is not only one of the healthiest vegetables, but it also happens to thrive in cooler weather.

It’s a member of the cruciferous vegetable family, which includes cold-tolerant plants like Brussels sprouts, cabbage, and turnips.

Although kale can be harvested year-round, it prefers cooler weather and can even tolerate snowy conditions.

Kale is packed with vitamins, minerals, fiber, antioxidants, and powerful plant compounds.

A 2-cup (50-gram) serving of raw kale provides more than 100% of the Daily Value (DV) for vitamin K and is also rich in vitamins A and C, B vitamins, and calcium

Additionally, kale is rich in flavonoid antioxidants, such as quercetin and kaempferol, which have powerful anti-inflammatory effects.

Some studies suggest that a diet high in flavonoids may help reduce the risk of certain cancers, such as breast, ovarian, and endometrial cancers.

Like kale, Brussels sprouts are a member of the nutrient-rich cruciferous vegetable family.

The mini, cabbage-like heads of the Brussels sprout plant form during the cold-weather months. They can withstand freezing temperatures, making them a must for seasonal winter dishes.

Brussels sprouts contain an impressive amount of nutrients. They are an excellent source of vitamin K, which is critical for heart health and brain function. One cup (156 grams) of cooked Brussels sprouts contains 182% of the DV.

They’re also a great source of vitamins A, B, and C, the minerals manganese and potassium, and are high in fiber and alpha-lipoic acid, both of which have been proven to help keep blood sugar levels stable.

Fiber slows digestion, resulting in a slower release of glucose into the bloodstream. This means that blood sugar is less likely to spike after consuming a fiber-rich meal.

Alpha-lipoic acid is an antioxidant that may reduce high blood sugar levels and increase the body’s sensitivity to insulin.

This popular root vegetable can be harvested in the summer months, but reaches peak sweetness in fall and winter.

Chilly conditions cause carrots to convert stored starches into sugars to keep the water in their cells from freezing. This makes carrots taste extra sweet in cooler weather. In fact, carrots harvested after a frost are often called “candy carrots.”

Carrots are an excellent source of beta-carotene, which the body can convert to vitamin A. One regular carrot (60 grams) contains around 50% of the DV for vitamin A.

Vitamin A is essential for eye health and is also important for immune function and proper growth and development.

What’s more, carrots are loaded with carotenoid antioxidants. These powerful plant pigments give carrots their bright color and may help reduce the risk of chronic diseases.

Some studies suggest that a diet high in carotenoids may particularly help reduce the risk of certain cancers, including prostate and breast cancer.

Swiss chard is tolerant to cold weather, very low in calories, and high in nutrients.

Two cups (72 grams) of raw Swiss chard provide just 14 calories, yet contains 24% of the Daily Value for vitamin A and 249% of the Daily Value for vitamin K. It’s also a good source of vitamin C, magnesium, and manganese.

In addition, the dark green leaves and brightly colored stems of Swiss chard are packed with beneficial plant pigments called betalains. These have been shown to reduce inflammation in the body and decrease the oxidation of LDL cholesterol, one of the main causes of heart disease.

Swiss chard is widely used in the Mediterranean diet, which has been linked to numerous health benefits, including a reduced risk of heart disease.

Similar in appearance to carrots, parsnips are another kind of root vegetable with a host of unique health benefits.

Like carrots, parsnips grow sweeter as frigid temperatures set in, making them a delightful addition to winter dishes. They have a slightly earthy taste and are highly nutritious.

One cup (156 grams) of cooked parsnips contains almost 6 grams of fiber and 11% of the DV for vitamin C. They also provide vitamin E, B vitamins, potassium, magnesium, and manganese.

The high fiber content of parsnips also makes them an excellent choice for digestive health. They are especially high in soluble fiber, which forms a gel-like substance in the digestive system. This can help slow the absorption of sugars into the bloodstream, which is especially helpful for blood sugar management.

Soluble fiber has also been linked to a reduced risk of heart disease and stroke.

Like kale and Brussels sprouts, collard greens belong to the Brassica family of vegetables. They’re also among the most cold-hardy plants in the group.

This slightly bitter green can withstand prolonged freezing temperatures and tastes best after being exposed to frost.

One cup (130 grams) of cooked collards contains 25% of the DV for calcium, which is essential for bone health, muscle contraction, nerve transmission, and other important functions.

These greens are also loaded with vitamin K, which, along with calcium, plays a key role in bone health.

Studies show that adequate intake of vitamin K and calcium helps reduce the risk of osteoporosis and fractures.

Aside from being a great choice for promoting healthy, strong bones, collard greens are a good source of vitamins B and C, as well as iron, magnesium, and manganese.

Rutabagas are an underrated vegetable despite their impressive nutrient content. These root vegetables grow best in cold weather and develop a sweeter flavor as temperatures drop.

All parts of the rutabaga plant can be eaten, including the leafy green tops that stick up from the ground.

One cup of cooked rutabaga (175 grams) contains 43% of the DV for vitamin C and 12% of the DV for potassium.

Potassium is crucial for heart function and muscle contraction. It also plays a key role in controlling blood pressure.

Research shows that a diet rich in potassium may help reduce high blood pressure. Observational studies have linked cruciferous vegetables like rutabagas to a lower risk of heart disease.

An older 2016 study found that eating more cruciferous vegetables could reduce the risk of developing heart disease by up to 15.8%.

Aside from being an excellent source of vitamin C and potassium, rutabagas are a good source of B vitamins, magnesium, phosphorus, and manganese.

Cabbage is a cruciferous vegetable that thrives in cool weather. While both green and red cabbage are extremely healthy, the red variety has a greater nutrient profile.

One cup of raw, red cabbage (90 grams) contains 54% of the DV for vitamin C and high amounts of vitamins A and K. It is also a good source of B vitamins, manganese, and potassium.

However, where red cabbage really shines is in its antioxidant content. The bright color of this vegetable comes from pigments called anthocyanins.

Anthocyanins belong to the flavonoid family of antioxidants, which have been linked to a number of health benefits, including the potential to reduce the risk of heart disease. High intakes of anthocyanins have been found to reduce the risk of coronary heart disease.

Some studies have also linked anthocyanins with a lower risk of colorectal cancer.

These jewel-toned vegetables are known for their spicy flavor and crunchy texture. What’s more, some varieties are very cold-hardy and can survive in freezing temperatures.

Radishes are rich in vitamins B and C, as well as potassium.

Their peppery taste is attributed to a special group of sulfur-containing compounds called isothiocyanates, which have been linked to many health benefits. These powerful plant compounds act as antioxidants in the body, helping keep inflammation in check.

Radishes have been researched for their potential cancer-fighting properties.

One older test-tube study found that isothiocyanate-rich radish extract inhibited the growth of human breast cancer cells. This effect has also been seen in test-tube and animal studies involving colon and bladder cancer cells.

Although promising, more human studies are needed to evaluate radishes’ potential cancer-fighting properties.

While many herbs die out when the weather turns chilly, parsley can continue to grow through frigid temperatures and even snow. This aromatic green is rich in nutrients.

A half cup (30 grams) provides over 4 times the DV for vitamin K and 44% of the Daily Value for vitamin C. It’s also high in vitamin A and folate.

Parsley is an excellent source of flavonoids, including apigenin and luteolin, which have many potential health benefits. These flavonoids may be particularly helpful in inhibiting memory loss and age-related changes in the brain.

However, a 2021 review found that while lutein consumption was linked with slight improvements in cognitive performance, these effects were not statistically significant.

Takeaway

Several vegetables thrive in colder weather. Carrots and parsnips even take on a sweeter taste after being exposed to frost.

These cold-hardy vegetables make it possible to fill your diet with seasonal, nutrient-packed produce all winter long.

While any vegetable from this list would make a highly nutritious addition to your diet, there are many other winter vegetables that make great choices as well.

After all, adding any fresh produce to your diet will go a long way toward promoting your health.