Rutabagas, often overlooked in the world of root vegetables, offer more than just a unique flavor. These nutrient-dense vegetables have gained attention for their potential role in blood sugar management. The glycemic index of rutabagas is approximately 72, placing them in the high GI category.
Despite their high GI, rutabagas have a relatively low glycemic load of about 6.1 per 100g serving. This makes them a more suitable option for those monitoring their blood sugar levels. The low glycemic load is due to the vegetable’s high fiber content and low calorie density.
Rutabagas are packed with essential nutrients. They provide significant amounts of vitamin C, potassium, and phosphorus. With only 52 calories per cup of cubed rutabaga, they offer a nutritious and filling option for those seeking to maintain a balanced diet. Their unique combination of nutrients and low glycemic load makes rutabagas a worthy addition to many meal plans.
Understanding Rutabagas

Rutabagas are root vegetables belonging to the Brassica family. They are a cross between turnips and wild cabbage, resulting in a unique flavor and texture.
These vegetables have a round or slightly elongated shape with a purple-tinged yellow skin. The flesh is typically pale yellow or off-white in color.
Rutabagas are known for their versatility in cooking. They can be roasted, mashed, boiled, or added to soups and stews. Their slightly sweet and earthy taste complements many dishes.
Nutritionally, rutabagas are low in calories and fat while being rich in essential nutrients. A 1-cup serving (140g) of cubed rutabaga contains:
- 52 calories
- 1.5g protein
- 12g carbohydrates
- 0.2g fat
- 3.1g fiber
- 25mg vitamin C (28% DV)
Rutabagas are an excellent source of vitamin C, potassium, and phosphorus. They also contain antioxidants that may help reduce inflammation in the body.
The glycemic index of rutabagas is approximately 72, which is considered moderate to high. Despite this, their low calorie and high fiber content make them a nutritious choice for many diets.
Root vegetables like rutabagas have shown potential benefits for diabetes management. Some studies suggest an inverse association between root vegetable consumption and diabetes risk.
Nutritional Facts

Rutabagas offer a range of essential nutrients while being relatively low in calories. This root vegetable provides a good balance of vitamins, minerals, and macronutrients to support overall health.
Vitamins and Minerals
Rutabagas are an excellent source of vitamin C, with one cup of raw cubed rutabaga providing about 35% of the daily recommended intake. This nutrient supports immune function and collagen production. Rutabagas also contain significant amounts of potassium, which is crucial for heart health and muscle function.
Other minerals found in rutabagas include phosphorus, calcium, and magnesium. These contribute to bone health and various bodily functions. Rutabagas also provide smaller amounts of iron, zinc, and manganese.
The vegetable contains B-vitamins such as thiamin (B1), riboflavin (B2), and B6, which play roles in energy metabolism and nervous system function. Folate, important for cell division and DNA synthesis, is also present in rutabagas.
Macros and Calories
A 100-gram serving of rutabaga contains approximately 37 calories, making it a low-calorie food option. The macronutrient breakdown of rutabagas is as follows:
- Carbohydrates: 8-9 grams per 100g serving
- Fiber: 2-3 grams per 100g serving
- Protein: 1-1.5 grams per 100g serving
- Fat: Less than 0.5 grams per 100g serving
Rutabagas have a low fat content, with minimal amounts of saturated, polyunsaturated, and monounsaturated fats. The fiber content contributes to digestive health and helps promote feelings of fullness.
The net carbs in rutabagas (total carbohydrates minus fiber) are around 6 grams per 100g serving. This relatively low carb content, combined with the fiber, results in a moderate glycemic load of about 18 for a typical serving.
Glycemic Index and Load

The glycemic index (GI) of rutabaga is approximately 71, placing it in the high GI category. This number indicates how quickly the food can raise blood glucose levels compared to pure glucose.
Glycemic load (GL) provides a more practical measure for blood sugar management. It takes into account both the GI and the typical serving size of a food.
For rutabaga, the GL is around 2 per 100g serving. This low GL suggests that despite its high GI, rutabaga has a minimal impact on blood sugar levels when consumed in normal portions.
Diabetics and those managing blood glucose levels can benefit from understanding these values. The low GL of rutabaga makes it a suitable option for inclusion in a balanced diet, even for those with diabetes.
It’s important to note that individual responses to foods can vary. Factors such as preparation method and consumption with other foods can influence the glycemic impact.
When comparing root vegetables:
Vegetable | Glycemic Index | Glycemic Load (per 100g) |
---|---|---|
Rutabaga | 71 | 2 |
Potato | 60-90 | Varies |
Parsnip | 97 | Varies |
Beets | 65 | Varies |
This table illustrates that rutabaga has a relatively moderate GI compared to some other root vegetables, while maintaining a low GL.
Health Benefits
Rutabagas offer numerous health advantages due to their rich nutritional profile and low calorie content. These cruciferous vegetables provide essential vitamins, minerals, and compounds that support overall well-being.
Cardiovascular and Diabetic Health
Rutabagas can play a valuable role in promoting heart health and managing diabetes. Their high fiber content helps regulate blood sugar levels, making them a suitable choice for individuals with diabetes or those at risk. The vegetable’s low glycemic index of around 72 means it causes only a moderate rise in blood glucose.
Potassium in rutabagas contributes to healthy blood pressure regulation. This mineral helps counteract the effects of sodium, potentially reducing hypertension risk. The fiber in rutabagas also aids in lowering cholesterol levels, further supporting cardiovascular health.
For weight management, rutabagas are an excellent low-calorie option. One cup of cubed rutabagas contains only 52 calories, making them a filling yet diet-friendly food choice.
Antioxidants and Anti-Inflammatory Effects
Rutabagas are rich in antioxidants, particularly vitamins C and E. These nutrients help protect cells from oxidative stress and damage caused by free radicals. Regular consumption of antioxidant-rich foods like rutabagas may contribute to reducing the risk of chronic diseases.
The vegetable contains glucosinolates, compounds found in cruciferous vegetables that have potential anti-cancer properties. While more research is needed, these substances may help inhibit the growth of cancer cells.
Rutabagas also possess anti-inflammatory properties. Chronic inflammation is linked to various health issues, including heart disease and certain cancers. Including rutabagas in a balanced diet may help combat inflammation and support overall health.
Culinary Uses

Rutabaga, a versatile root vegetable, offers numerous culinary applications. Its slightly sweet and earthy flavor makes it a popular choice for various dishes.
Roasting rutabaga brings out its natural sweetness and creates a crispy exterior. Cut into cubes, tossed with olive oil and herbs, then baked until golden brown, it makes an excellent side dish.
Boiling is another common preparation method. Boiled rutabaga can be mashed, similar to potatoes, creating a creamy and flavorful accompaniment to meals.
Rutabaga shines in soups and stews, adding depth and nutrition. Its firm texture holds up well during cooking, absorbing flavors while maintaining its shape.
Raw rutabaga can be grated into salads or slaws, providing a crunchy texture and mild peppery taste. It pairs well with apples, carrots, and other fresh vegetables.
For those watching their carbohydrate intake, rutabaga serves as a lower-carb alternative to potatoes in many recipes. It can be used to make fries, hash browns, or even as a pizza crust base.
Rutabaga’s culinary versatility extends to both savory and sweet applications. It can be incorporated into casseroles, gratins, and even baked goods like muffins or quick breads.
Comparisons with Similar Vegetables

Rutabagas share nutritional qualities with other root vegetables but have some key differences in glycemic impact and nutrient profiles. Understanding these comparisons can help inform dietary choices.
Rutabagas Versus Turnips
Rutabagas and turnips are closely related vegetables with similar appearances. Both have relatively low glycemic indexes, making them good choices for blood sugar management. Rutabagas have a slightly higher glycemic index of 72 compared to turnips at around 62.
Nutritionally, rutabagas offer more vitamin C and potassium than turnips. They also contain more fiber, which aids in slowing sugar absorption. Turnips have a milder flavor and cook faster than rutabagas.
Both vegetables are low in calories and carbohydrates compared to starchier options like potatoes. This makes them suitable alternatives for those watching their carb intake.
Other Root Vegetable Comparisons
Rutabagas have a lower glycemic index than white potatoes (86) and sweet potatoes (70). This means they cause a slower rise in blood sugar levels after consumption.
Carrots have a glycemic index of about 39, lower than rutabagas. However, rutabagas contain more fiber and fewer sugars than carrots.
Beets have a glycemic index of 65, placing them between rutabagas and potatoes. Beets are higher in natural sugars but also rich in beneficial compounds like betalains.
Parsnips have a high glycemic index of 97, making rutabagas a better choice for blood sugar control. Rutabagas also provide more vitamin C than parsnips.
Vegetable | Glycemic Index | Fiber Content |
---|---|---|
Rutabaga | 72 | High |
Turnip | 62 | Moderate |
Potato | 86 | Low |
Carrot | 39 | Moderate |
Beet | 65 | Moderate |
Parsnip | 97 | Moderate |
Selecting and Storing Rutabagas
When selecting rutabagas, choose firm, smooth roots that feel heavy for their size. Look for unblemished skin with a purple-tinged top and yellowish bottom. Avoid any with soft spots, deep cuts, or visible decay.
Small to medium-sized rutabagas (4-5 inches in diameter) often have the best flavor and texture. Larger ones can become woody or bitter.
To store rutabagas, trim off any greens but leave the root intact. Place them unwashed in a plastic bag in the refrigerator crisper drawer.
Properly stored, rutabagas can last 2-3 weeks in the fridge. For longer storage, keep them in a cool, dark place like a root cellar.
At room temperature, rutabagas will stay fresh for about a week. Check periodically and discard any that develop mold or soft spots.
For convenience, you can peel and cut rutabagas before storing. Place chopped pieces in an airtight container with a damp paper towel and refrigerate for up to 4 days.
Dietary Considerations
Rutabagas offer several benefits for those managing their diet. Their low calorie and carbohydrate content, coupled with a moderate glycemic index, make them a versatile option for various dietary needs.
Weight Management and Low-Carb Diets
Rutabagas are an excellent choice for weight management and low-carb diets. A 100-gram serving contains only 37 calories and 6.32 grams of net carbs. This low calorie density allows for larger portions without significantly increasing overall calorie intake.
The vegetable’s high fiber content (2 grams per 100g) promotes satiety, helping individuals feel full for longer periods. This can aid in reducing overall calorie consumption throughout the day.
For those following low-carb diets, rutabagas can be a suitable alternative to higher-carb vegetables like potatoes. Their lower net carb content fits well within the restrictions of many low-carb eating plans.
Diabetes and Blood Sugar Control
Rutabagas have a moderate glycemic index of 72, which is lower than that of potatoes. This means they have a less dramatic impact on blood sugar levels when consumed.
The glycemic load of rutabagas is low, estimated at around 7 for a 100-gram serving. This makes them a good option for individuals managing diabetes or trying to control their blood glucose levels.
The fiber content in rutabagas also plays a role in blood sugar regulation. Dietary fiber slows down the absorption of sugars, helping to prevent rapid spikes in blood glucose levels after meals.
Portion control remains important, as the carbohydrate content can still affect blood sugar when consumed in large quantities. Incorporating rutabagas as part of a balanced meal can help maintain stable blood glucose levels.