Kohlrabi, also known as the German turnip, is a cruciferous vegetable in the Brassica family, which includes other nutritional powerhouses like broccoli, cabbage, and Brussels sprouts. This vegetable, which comes in both green and purple varieties, is known for its slightly sweet, peppery flavor and its crunchy texture. Despite its humble appearance, kohlrabi is rich in vitamins, minerals, antioxidants, and fiber, making it a highly nutritious addition to any diet.
Here, we’ll explore 13 amazing health benefits of kohlrabi, from supporting digestion to boosting the immune system, and why you should consider adding this vegetable to your diet.
1. Rich in Antioxidants: Protecting Against Oxidative Stress
Kohlrabi is packed with antioxidants, including vitamin C, anthocyanins (in the purple variety), isothiocyanates, and glucosinolates. These antioxidants work to neutralize free radicals, which are unstable molecules that can cause damage to cells and lead to oxidative stress. Oxidative stress is a contributing factor in the development of chronic diseases, such as heart disease, cancer, and diabetes.
By incorporating antioxidant-rich foods like kohlrabi into your diet, you can help protect your cells from damage, reduce inflammation, and lower the risk of chronic diseases. In particular, vitamin C boosts the body’s ability to combat oxidative stress while supporting the immune system.
2. Boosts Immune Function: High in Vitamin C
One of kohlrabi’s key health benefits is its high content of vitamin C, which plays an essential role in immune function. Vitamin C stimulates the production of white blood cells, which are crucial for defending the body against infections, viruses, and bacteria. Regular consumption of kohlrabi can help strengthen the immune system and reduce the likelihood of contracting common infections like colds or flu.
Kohlrabi provides more than 100% of the recommended daily intake of vitamin C in just one serving, making it an excellent food for bolstering immune defenses, especially during cold and flu seasons.
3. Promotes Digestive Health: Rich in Fiber
Kohlrabi is an excellent source of dietary fiber, which is essential for maintaining a healthy digestive system. Fiber supports healthy bowel movements, prevents constipation, and encourages the growth of beneficial gut bacteria. The fiber in kohlrabi also aids in the absorption of nutrients and can help prevent digestive disorders such as irritable bowel syndrome (IBS) and diverticulosis.
In addition to promoting digestive health, fiber plays a key role in weight management and blood sugar regulation, helping to keep you feeling full for longer and preventing sudden spikes in blood sugar levels.
4. Supports Weight Loss: Low in Calories, High in Nutrients
If you’re looking to manage your weight, kohlrabi is an ideal vegetable to include in your diet. It is low in calories while still being rich in essential nutrients like vitamins, minerals, and fiber. With just 36 calories per cup, kohlrabi allows you to enjoy large portions without consuming excessive calories.
Its high fiber content helps promote feelings of fullness, reducing the urge to overeat or snack between meals. This makes kohlrabi a valuable ally for those looking to lose weight or maintain a healthy weight without sacrificing nutrition.
5. Improves Heart Health: Reducing Cholesterol and Blood Pressure
Kohlrabi is rich in nutrients that support heart health, particularly fiber and potassium. The fiber in kohlrabi helps reduce LDL (bad) cholesterol by preventing its absorption in the bloodstream, which can lower cholesterol levels and reduce the risk of atherosclerosis.
In addition, the potassium content in kohlrabi helps regulate blood pressure by balancing sodium levels and promoting the relaxation of blood vessel walls. This effect reduces the risk of hypertension, which is a major contributor to heart disease and stroke. By incorporating kohlrabi into a heart-healthy diet, you can improve overall cardiovascular function and reduce your risk of heart-related conditions.
6. Supports Bone Health: Rich in Calcium and Magnesium
Kohlrabi contains significant amounts of calcium, magnesium, and phosphorus, all of which are essential for maintaining strong and healthy bones. Calcium is the primary mineral responsible for building bone tissue, while magnesium supports calcium absorption and ensures that calcium is properly utilized by the body.
Including calcium- and magnesium-rich foods like kohlrabi in your diet can help prevent osteoporosis and promote bone density, especially as you age. These minerals also play a role in maintaining joint health and reducing the risk of bone fractures.
7. May Help Fight Cancer: Contains Glucosinolates
Kohlrabi belongs to the cruciferous vegetable family, which is known for its cancer-fighting properties. Like its relatives—broccoli, cauliflower, and Brussels sprouts—kohlrabi contains glucosinolates, sulfur-containing compounds that are broken down into isothiocyanates during digestion. These isothiocyanates have been shown to inhibit the growth of cancer cells and promote the elimination of carcinogens from the body.
A diet rich in cruciferous vegetables like kohlrabi may lower the risk of several types of cancer, including lung, breast, colon, and prostate cancer.
8. Improves Eye Health: High in Lutein and Zeaxanthin
Kohlrabi is a good source of lutein and zeaxanthin, two antioxidants that play a crucial role in maintaining eye health. These compounds help protect the eyes from oxidative damage caused by harmful UV rays and blue light, which can contribute to age-related macular degeneration (AMD) and cataracts.
By consuming foods high in lutein and zeaxanthin, such as kohlrabi, you can help reduce the risk of vision loss and maintain overall eye health, especially as you age.
9. Regulates Blood Sugar: Beneficial for Diabetes Management
Kohlrabi is a low glycemic index (GI) food, meaning it does not cause rapid spikes in blood sugar levels when consumed. The fiber in kohlrabi also helps slow the absorption of sugar into the bloodstream, which is beneficial for individuals managing diabetes or those at risk of developing the condition.
By promoting stable blood sugar levels, kohlrabi helps reduce the risk of insulin resistance and complications associated with type 2 diabetes, such as nerve damage and cardiovascular disease.
10. Promotes Healthy Skin: Rich in Vitamin C and Antioxidants
Kohlrabi’s high content of vitamin C makes it a powerful food for promoting healthy, glowing skin. Vitamin C is essential for the production of collagen, a protein that keeps the skin firm, elastic, and youthful. Collagen also helps reduce the appearance of wrinkles, fine lines, and sagging skin.
In addition, the antioxidants in kohlrabi help fight free radicals that contribute to premature aging and skin damage, resulting in healthier, more radiant skin.
11. Supports Detoxification: Enhances Liver Function
Kohlrabi contains sulfur compounds that play a key role in the body’s natural detoxification processes. These compounds help the liver detoxify harmful substances by promoting the elimination of toxins and reducing the overall toxic burden on the body. The antioxidants in kohlrabi further support detoxification by neutralizing free radicals and preventing oxidative damage.
By enhancing liver function, kohlrabi helps keep the body’s systems clean and promotes overall health and wellness.
12. Supports a Healthy Pregnancy: Rich in Folate
Kohlrabi is a natural source of folate, a B-vitamin that is essential for a healthy pregnancy. Folate plays a critical role in the development of the fetal brain and spinal cord, especially in the early stages of pregnancy. Adequate folate intake helps prevent neural tube defects and ensures proper fetal growth.
Pregnant women can benefit from consuming kohlrabi regularly to meet their daily folate needs while also getting other important nutrients for maternal and fetal health.
13. May Aid Respiratory Health: Anti-Inflammatory and Antioxidant Effects
The antioxidants and anti-inflammatory compounds in kohlrabi can benefit respiratory health by reducing inflammation in the lungs and airways. This makes kohlrabi a helpful food for individuals dealing with asthma, bronchitis, or other respiratory conditions. Vitamin C, in particular, supports the respiratory system by boosting immune function and protecting the lungs from oxidative stress.
By reducing lung inflammation and improving breathing, kohlrabi can help manage the symptoms of respiratory issues and promote better lung function.
Conclusion
Kohlrabi is a nutrient-dense vegetable that offers a wide range of health benefits, from boosting immune function and improving digestion to supporting heart health and bone strength. Its high content of antioxidants, fiber, and essential vitamins and minerals make it an excellent addition to any diet, whether you’re looking to improve your overall health or manage specific conditions.
Incorporating kohlrabi into your daily meals can help you reap its many health benefits while adding a delicious, crunchy texture to your favorite dishes. Whether you eat it raw, roasted, or in soups, kohlrabi is a versatile vegetable that deserves a place in your healthy eating routine.

