Celeriac:18 Health Benefits, Side Effects & How to Take It

Imagine a root vegetable that’s often overlooked, residing quietly in the produce aisle, yet bursting with an incredible array of health benefits. We’re talking about celeriac, sometimes called “celery root,” a true unsung hero of the culinary world. If you’ve ever wondered what that knobby, light-brown root with a distinctive, earthy aroma is, you’ve stumbled upon a nutritional powerhouse waiting to transform your meals and boost your well-being.

Far from being just a quirky-looking vegetable, celeriac offers a surprising number of advantages. In this article, we’ll explore 18 amazing health benefits of Celeriac. In addition, we’ll also discuss potential side effects and the best ways to incorporate celeriac into your diet.

What is Celeriac?

Celeriac (Apium graveolens var. rapaceum) is a variety of celery cultivated specifically for its edible root rather than for its stems or leaves. It belongs to the Apiaceae family, which also includes carrots, parsley, and fennel. Despite being related to common stalk celery, celeriac is distinctly different in appearance and culinary uses.

This root vegetable has been cultivated since antiquity, with records of its use dating back to Mediterranean civilizations in ancient times. It became particularly popular in European cuisines, especially in France, Germany, and countries across Eastern Europe, where it’s considered a staple winter vegetable.

Celeriac is characterized by:

• Appearance: A large, round, knobby root with rough, brownish skin and a creamy white interior.
• Size: Typically 4-5 inches in diameter, weighing about 1-2 pounds when mature.
• Flavor: A distinctive taste that combines the aromatic qualities of celery with earthy, nutty notes. The flavor is milder and more subtle than that of stalk celery.
• Texture: Dense and crisp when raw, becoming tender and velvety when cooked, similar to a potato but with more character.

Celeriac is grown primarily for its root, though the stems, leaves, and seeds are also edible and share similar properties to regular celery. The plant grows best in cool climates and is typically harvested in late fall through winter. This makes it an excellent seasonal vegetable for cold months.

Nutrition Facts of Celeriac

Before we dive into the specific benefits, let’s take a quick look at what makes celeriac so special. It’s a low-calorie, low-carb vegetable, making it an excellent choice for those managing their weight or following specific dietary plans.

A 100-gram serving of raw celeriac typically provides:

(Note: Nutritional values can vary slightly based on growing conditions and preparation methods.)

As you can see, celeriac is particularly rich in Vitamin K, an essential nutrient for bone health and blood clotting, and also provides a good dose of Vitamin C, potassium, and phosphorus. It’s this impressive lineup of nutrients that contributes to its wide array of health benefits.

18 Proven Health Benefits of Celeriac

Here are 18 evidence-based ways celeriac can improve your health:

1. Excellent Source of Vitamin K for Bone Health

Celeriac stands out for its high Vitamin K content. Vitamin K is crucial for the proper functioning of proteins involved in bone mineralization and helps regulate calcium in the body. Adequate Vitamin K intake is linked to stronger bones and a reduced risk of fractures, especially in older adults.

Fact: Just one serving of celeriac can provide over a third of your daily Vitamin K needs!

2. Rich in Antioxidants to Combat Free Radicals

Like many vegetables, celeriac is loaded with antioxidants, including Vitamin C and various phenolic compounds. These powerful compounds help neutralize harmful free radicals in the body, which can cause oxidative stress and contribute to chronic diseases like heart disease and cancer. Regular intake of antioxidant-rich foods like celeriac can help protect your cells from damage.

3. Supports Healthy Digestion and Gut Health

The dietary fiber in celeriac is a game-changer for your digestive system. Fiber adds bulk to stool, promoting regular bowel movements and preventing constipation. It also acts as a prebiotic, feeding the beneficial bacteria in your gut.

A healthy gut microbiome is linked to improved immunity, better mood, and even weight management. Eating celeriac regularly can be a simple, delicious way to nourish your gut and keep things moving smoothly.

4. Aids in Weight Management

Celeriac is a low-calorie, low-carbohydrate, and relatively high-fiber vegetable, making it an excellent addition to a weight loss or weight management diet. The fiber helps you feel full and satisfied, reducing overall calorie intake. Plus, its versatility allows you to replace higher-calorie ingredients in many dishes without sacrificing flavor.

5. Contributes to Heart Health with Potassium

The potassium content in celeriac is beneficial for cardiovascular health. Potassium helps regulate blood pressure by counteracting the effects of sodium in the body and promoting vasodilation (the widening of blood vessels). Maintaining healthy blood pressure is crucial for reducing the risk of heart disease and stroke.

6. Boosts the Immune System with Vitamin C

While not as high in Vitamin C as some citrus fruits, celeriac still provides a decent amount, contributing to a robust immune system. Vitamin C is a powerful antioxidant that supports various cellular functions of both the innate and adaptive immune systems, helping your body fight off infections and illnesses.

7. May Have Anti-Inflammatory Properties

The antioxidants and other phytonutrients found in celeriac may possess anti-inflammatory properties. Chronic inflammation is at the root of many diseases, including arthritis, heart disease, and some cancers. Incorporating anti-inflammatory foods into your diet can help reduce inflammation throughout the body.

8. Helps Regulate Blood Sugar Levels

The fiber in celeriac can also play a role in blood sugar management. Fiber slows down the absorption of sugars into the bloodstream, preventing rapid spikes and crashes in blood glucose levels. This makes celeriac a good option for individuals with diabetes or those looking to maintain stable energy levels.

9. Supports Nerve Function and Muscle Contraction

The potassium and phosphorus in celeriac are vital for proper nerve function and muscle contraction. Potassium is an electrolyte that facilitates nerve signal transmission, while phosphorus is crucial for energy production and storage in muscle cells.

10. Promotes Healthy Skin

The Vitamin C in celeriac isn’t just for immunity; it’s also essential for collagen production. Collagen is the main structural protein in your skin, responsible for its elasticity and firmness. Adequate Vitamin C intake can contribute to healthier, more radiant skin.

11. Hydration Support

While not as hydrating as cucumbers or watermelon, celeriac does contain a good amount of water, contributing to your overall daily fluid intake. Staying well-hydrated is fundamental for all bodily functions, from metabolism to temperature regulation.

12. May Help Prevent Anemia

Celeriac contains a small amount of iron, an essential mineral for red blood cell production and oxygen transport throughout the body. While not a primary source, consuming iron-rich vegetables like celeriac as part of a balanced diet can contribute to preventing iron-deficiency anemia.

13. Supports Detoxification Pathways

The fiber and antioxidants in celeriac support the body’s natural detoxification processes. Fiber helps eliminate toxins through the digestive tract, while antioxidants protect liver cells from damage, aiding in the liver’s crucial role in detoxification.

14. Versatile Culinary Ingredient

Okay, while not a “health benefit” in the traditional sense, the versatility of celeriac makes it easier to incorporate more nutrients into your diet. Its ability to be cooked in many ways means you’re more likely to eat it regularly, reaping all the health rewards consistently!

15. Low Glycemic Index

Celeriac has a relatively low glycemic index (GI), meaning it causes a slower and smaller rise in blood glucose compared to high-GI foods. This makes it a great alternative to higher-carb root vegetables like potatoes, especially for those mindful of their blood sugar.

16. Enhances Nutrient Absorption

Some compounds in celeriac, particularly certain organic acids, can potentially enhance the absorption of other minerals from the gut, though more research is needed in this specific area. Eating a diverse range of vegetables generally improves overall nutrient synergy.

17. Potential for Cancer Prevention

While no single food can prevent cancer, the rich antioxidant and anti-inflammatory profile of celeriac, combined with its fiber content, suggests it may contribute to a diet that reduces cancer risk. Studies often link diets rich in fruits and vegetables to lower rates of various cancers.

18. Good Source of Manganese

Manganese, an often-overlooked trace mineral, is present in celeriac. It plays a role in bone formation, blood clotting, and metabolism. It also acts as a cofactor for several enzymes, including superoxide dismutase, a powerful antioxidant enzyme that protects cells from damage.

Potential Side Effects of Celeriac

While celeriac is generally safe for most people when consumed in typical food amounts, there are some potential side effects and considerations to be aware of:

1. Allergic Reactions

Some individuals may experience allergic reactions to celeriac, particularly those who are also allergic to birch pollen, mugwort, or plants in the Apiaceae family (like celery, carrots, or fennel). Symptoms can range from mild itching and hives to more severe reactions in rare cases.

If you experience swelling of the face, lips, or throat, difficulty breathing, or dizziness after consuming celeriac, seek medical attention immediately.

2. Skin Sensitivity to Sunlight

Celeriac contains furanocoumarins, compounds that can increase sensitivity to UV radiation in some individuals. Handling large amounts of raw celeriac and then exposing the skin to sunlight can cause a condition called phytophotodermatitis. This may result in rash, blistering, or skin discoloration.

3. Digestive Discomfort

Due to its fiber content, consuming large amounts of celeriac may cause digestive issues like bloating, gas, or abdominal discomfort in some individuals, especially those with sensitive digestive systems. People with IBS (Irritable Bowel Syndrome) or other digestive sensitivities may need to monitor their celeriac intake.

4. Interaction with Blood-Thinning Medications

Celeriac contains vitamin K, which plays a role in blood clotting. People taking blood-thinning medications like warfarin (Coumadin) should maintain consistent intake of vitamin K-rich foods rather than suddenly increasing or decreasing consumption, as this could interfere with medication effectiveness.

5. Potential Thyroid Effects

Like other vegetables in the Apiaceae family, celeriac contains small amounts of compounds that could potentially affect thyroid function when consumed in very large quantities. For most people, the amounts in typical dietary consumption are unlikely to cause problems.

6. Sodium Content Considerations

While celeriac is not high in sodium compared to processed foods, it does contain more sodium than many other fresh vegetables (approximately 100 mg per 100g). People on very strict sodium-restricted diets may need to consider this when including celeriac in their meals.

7. Potential Drug Interactions

Celeriac may interact with certain medications:

• Diuretics: May enhance the effects of diuretic medications, potentially causing excessive fluid loss
• Lithium: Celeriac’s diuretic effect may affect lithium levels in the body, potentially altering its effectiveness
• Medications metabolized by liver enzymes: Some compounds in celeriac may affect how the liver processes certain medications

8. Choking Hazard for Young Children

Raw celeriac can be firm and may pose a choking hazard for young children. When serving celeriac to children, ensure it’s properly cooked to a soft texture or finely grated if used raw.

For infants and toddlers, celeriac should be thoroughly cooked and mashed or pureed to an age-appropriate consistency.

Preparing Celeriac: The Basics

The most intimidating aspect of celeriac for many home cooks is simply getting past its rough exterior. Here’s a straightforward approach to preparing celeriac:

How to Select Celeriac

• Choose firm, heavy roots without soft spots
• Look for medium-sized specimens (about the size of a large grapefruit)
• Smaller roots tend to be more tender and less fibrous
• Fresh-looking leaves (if still attached) indicate freshness

Basic Preparation Method

• Wash thoroughly to remove dirt from all the crevices
• Slice off the top and bottom to create flat surfaces for stability
• Stand the root on a cutting board and use a sharp knife to slice downward, removing the skin in sections
• Cut deeper than you think necessary to ensure all the tough, fibrous exterior is removed
• Immediately place in acidulated water (water with a splash of lemon juice or vinegar) to prevent browning if not using right away

Storage Tips

• Whole, unpeeled celeriac can be stored in the refrigerator for 2-3 weeks
• Wrap in a paper towel and place in a perforated plastic bag in the crisper drawer
• Once peeled and cut, use within 3-4 days
• Blanched celeriac can be frozen for up to 6 months

How to Incorporate Celeriac Into Your Diet?

If you’re new to celeriac, begin with these approachable preparation methods:

1. Roasted Celeriac

Roasting brings out celeriac’s natural sweetness and creates a delicious caramelized exterior:

Simple Roasted Celeriac Cubes:

1. Preheat oven to 400°F (200°C)
2. Peel and cut celeriac into 1-inch cubes
3. Toss with olive oil, salt, pepper, and optional herbs (thyme or rosemary work well)
4. Spread in a single layer on a baking sheet
5. Roast for 25-30 minutes, turning halfway through, until golden and tender

Serving suggestions: Enjoy as a side dish, add to grain bowls, or toss with pasta.

2. Celeriac Purée or Mash

A lower-carb alternative to mashed potatoes with a sophisticated flavor:

Basic Celeriac Purée:

1. Peel and cube celeriac (about 1-inch pieces)
2. Boil in lightly salted water until very tender (15-20 minutes)
3. Drain well and return to the hot pot to evaporate excess moisture
4. Add a splash of warm milk or cream, a pat of butter, salt, and pepper
5. Purée with an immersion blender or food processor until smooth

Variations:

• Combine half celeriac, half potato for a milder introduction
• Add roasted garlic for extra flavor
• Stir in Parmesan cheese for richness
• Include white beans for added protein and creaminess

3. Raw in Salads

Celeriac’s crunchy texture and subtle flavor make it excellent in raw preparations:

Classic Céleri Rémoulade:

1. Peel and julienne celeriac (or shred in a food processor)
2. Immediately toss with lemon juice to prevent browning
3. Mix with a dressing of mayonnaise, Dijon mustard, capers, and lemon juice
4. Season with salt and pepper
5. Chill for at least 30 minutes to allow flavors to meld

Quick Celeriac Slaw:

1. Shred peeled celeriac and carrots
2. Toss with apple cider vinegar, olive oil, whole grain mustard, and honey
3. Add fresh herbs like parsley or dill
4. Season with salt and pepper

4. Soups and Stews

Celeriac adds body, creaminess, and nutrition to soups:

Celeriac and Apple Soup:

1. Sauté diced onion in butter or olive oil until translucent
2. Add peeled, diced celeriac and apple, cook for 2-3 minutes
3. Add vegetable stock, bring to a boil, then simmer until vegetables are tender
4. Blend until smooth, then finish with a touch of cream and fresh thyme
5. Season with salt and white pepper

Hearty Vegetable Stew:

• Include diced celeriac along with other root vegetables in your favorite stew recipe
• Add during the same stage you would add potatoes or carrots
• The celeriac will absorb flavors while maintaining its texture

5. As a Potato Substitute

Celeriac makes an excellent lower-carb alternative to potatoes in many recipes:

Celeriac “Fries”:

1. Cut peeled celeriac into french-fry shapes
2. Toss with olive oil, salt, and your choice of seasonings (paprika, garlic powder, herbs)
3. Spread in a single layer on a baking sheet
4. Roast at 425°F (220°C) for 25-30 minutes, turning once, until golden and crisp

Celeriac Gratin:

1. Slice peeled celeriac thinly (a mandoline works well)
2. Layer in a baking dish with cream, garlic, thyme, salt, and pepper
3. Top with grated Gruyère or Parmesan cheese
4. Bake at 375°F (190°C) for 40-45 minutes until tender and golden

6. In Stir-Fries and Sautés

The firm texture of celeriac holds up well to quick-cooking methods:

Quick Celeriac Stir-Fry:

1. Julienne or matchstick peeled celeriac
2. Stir-fry with other quick-cooking vegetables like bell peppers and snow peas
3. Add ginger, garlic, and your favorite stir-fry sauce
4. Serve over rice or with noodles

Sautéed Celeriac with Herbs:

1. Cut celeriac into small cubes
2. Sauté in butter or olive oil until golden and tender
3. Finish with fresh herbs like parsley, chives, or dill
4. Season with salt, pepper, and a squeeze of lemon juice

7. Celeriac “Rice”

A grain-free alternative to rice or couscous:

Celeriac “Rice” Method:

1. Peel celeriac and cut into chunks
2. Pulse in a food processor until it resembles rice grains
3. Steam for 5-7 minutes until just tender but still with some bite
4. Use as you would rice in bowls, stir-fries, or as a side dish

Mediterranean Celeriac “Rice” Bowl:

1. Prepare celeriac “rice” as above
2. Sauté with garlic, olive oil, and Mediterranean herbs
3. Top with roasted vegetables, chickpeas, feta cheese, and a lemon-tahini dressing

8. Celeriac Noodles

For a low-carb pasta alternative:

Celeriac “Noodles” Method:

1. Peel celeriac and cut into pieces that fit your spiralizer
2. Spiralize into noodle shapes
3. Blanch briefly in boiling water (1-2 minutes) for a more pasta-like texture
4. Drain well and pat dry before using

Celeriac “Noodles” with Mushroom Sauce:

1. Prepare celeriac noodles as above
2. Sauté mixed mushrooms with garlic and thyme
3. Add a splash of white wine, then a touch of cream
4. Toss with celeriac noodles and finish with Parmesan cheese

9. Pickled Celeriac

Pickling transforms celeriac into a tangy, crunchy condiment:

Quick Pickled Celeriac:

1. Julienne or thinly slice peeled celeriac
2. Bring vinegar, water, salt, sugar, and spices (peppercorns, mustard seeds, bay leaf) to a boil
3. Pour hot liquid over celeriac in a heatproof jar
4. Cool to room temperature, then refrigerate for at least 24 hours before using
5. Keeps for several weeks in the refrigerator

Serving suggestions: Add to sandwiches, tacos, grain bowls, or charcuterie boards.

10. Celeriac Chips

Thin, crispy celeriac chips make a nutritious snack:

Baked Celeriac Chips:

1. Use a mandoline to slice peeled celeriac very thinly
2. Toss with a small amount of olive oil and salt
3. Arrange in a single layer on baking sheets
4. Bake at 300°F (150°C) for 20-25 minutes, until crisp and golden
5. Cool completely to maximize crispness

Flavor variations: Before baking, sprinkle with paprika, garlic powder, nutritional yeast, or herbs.

How Much Celeriac Can You Eat in a Day?

While there’s no strict limit on celeriac consumption for most people, here are some general guidelines:

• General consumption: 1/2 to 1 cup (about 75-150 grams) of cooked celeriac daily is a reasonable amount that provides benefits without potential side effects.
• As part of a varied diet: Include celeriac 2-3 times per week alongside other vegetables for nutritional diversity.
• For specific benefits: Up to 1-2 cups daily may be appropriate for certain health goals, such as weight management or blood sugar control.

FAQ’s

1. Is celeriac the same as celery?

No, though they are related. Celeriac (Apium graveolens var. rapaceum) is grown specifically for its edible root, while celery (Apium graveolens var. dulce) is cultivated for its stalks. They have different appearances, textures, and culinary uses. Celeriac has a knobby root with a white interior, while celery features long, crisp stalks.

2. Is celeriac keto-friendly?

Yes, celeriac is relatively keto-friendly with approximately 9.2g of carbohydrates per 100g (about 7.4g net carbs after subtracting fiber). This is significantly lower than potatoes, which contain about 17g of carbohydrates per 100g. Celeriac can be an excellent substitute for higher-carb root vegetables in ketogenic diets when used in moderation.

3. Can celeriac help with weight loss?

Celeriac can support weight loss efforts in several ways. It’s low in calories (42 calories per 100g) while being high in fiber, helping you feel full longer. It provides a satisfying, potato-like experience with fewer carbohydrates and calories. Using celeriac as a substitute for higher-calorie starchy vegetables can significantly reduce the caloric content of meals while maintaining satisfaction.

4. What does celeriac taste like?

Celeriac has a distinctive flavor that combines the aromatic qualities of celery with nutty, earthy notes. The taste is milder and more subtle than that of stalk celery, with a slight sweetness that develops more when cooked. The texture is similar to a potato but with more character—crisp when raw and velvety when cooked.

5. Can you eat celeriac raw?

Absolutely. Raw celeriac is crisp and flavorful, ideal for salads and slaws. The classic French dish Céleri Rémoulade features raw grated celeriac in a mustard-mayonnaise dressing. When eating raw, peel thoroughly and grate, julienne, or slice thinly.

To prevent browning, toss immediately with lemon juice or vinegar. Raw celeriac has a more pronounced flavor than when cooked and provides maximum nutritional benefits.

6. Is celeriac safe during pregnancy?

Yes, celeriac is safe and nutritious during pregnancy when properly washed and prepared. It provides beneficial nutrients, including folate, which is important for fetal development. The fiber content can help manage common pregnancy digestive issues like constipation.