Kohlrabi

Bio-Activity Analysis
Vitamin C Density Comparison
SCIENTIFIC DATA VISUALIZATION
Health Benefits & Sources
Why You Need It
- Immune System Armor: Provides over 100% of your daily Vitamin C needs in a single serving.
- Digestive Harmony: High in fiber and electrolytes like potassium to support regularity and blood pressure.
- Antioxidant Power: Contains glucosinolates that help fight inflammation.
The Science Behind the Crunch
Kohlrabi is a stealth bomber for your health. First, its Vitamin C content is the star player. This antioxidant is vital for collagen production (hello, healthy skin) and protecting cells from oxidative stress. Second, it is rich in potassium, a mineral that acts as a natural counterbalance to sodium, helping to relax blood vessels and maintain healthy blood pressure levels. Finally, like its brassica cousins, kohlrabi contains sulfur-based compounds called glucosinolates. When you chop or chew it, these compounds convert into isothiocyanates, which scientific research suggests may support the body's natural detoxification pathways and reduce the risk of chronic diseases.
Natural Food Sources
Kohlrabi is the star here, but you can find similar nutrients in its botanical cousins.
| Food | Serving Size | Vitamin C (% Daily Value) |
|---|---|---|
| Kohlrabi (Raw) | 1 cup (135g) | 140% |
| Red Bell Pepper | 1 cup | 317% |
| Broccoli | 1 cup | 135% |
| Orange Juice | 1 cup | 120% |
| Kale | 1 cup | 134% |
How to Eat It
Eat it raw for maximum crunch and Vitamin C retention, as heat can degrade the vitamin. Peel the tough outer skin before slicing. It cooks quickly—roasting brings out a nutty sweetness, while steaming preserves the mild flavor. If you find the flavor too 'grassy,' a squeeze of lemon or a dash of salt usually fixes it.
Supplementation
While you can take Vitamin C supplements, eating whole kohlrabi provides a synergistic blend of fiber and minerals that pills cannot replicate. Eating 1 cup of raw kohlrabi 3-4 times a week is sufficient to see health benefits.
Top Food Sources
Frequently Asked Questions
Safety & Side Effects
Kohlrabi is generally safe for everyone. However, because it is high in fiber, eating massive amounts suddenly may cause temporary gas or bloating—introduce it gradually. It is also high in Vitamin K, which plays a role in blood clotting; if you are on blood-thinning medication (like Warfarin), keep your intake consistent and consult your doctor.
Scientific References
- [1]USDA FoodData Central: Kohlrabi, raw.
- [2]National Institutes of Health (NIH): Vitamin C Fact Sheet for Health Professionals.
- [3]Journal of Agricultural and Food Chemistry: Glucosinolates and their breakdown products in cruciferous vegetables.