Nutritional Overview: Brussel Sprouts vs. Broccoli
When comparing the carbohydrate content of Brussel sprouts and broccoli, it's important to look at both total carbs and net carbs (total carbs minus fiber). While both are excellent choices for a healthy, low-carb diet, there are notable differences in their macronutrient profiles that may influence your selection depending on your dietary goals.
How Many Carbs Are in Raw Brussel Sprouts?
Based on USDA data, a single cup of raw Brussel sprouts contains approximately 7.88 grams of total carbohydrates. This is higher than broccoli on a per-cup basis, but a significant portion of this is dietary fiber. The fiber in Brussel sprouts, which accounts for about 3.34 grams per cup, is crucial for digestive health and helps lower the overall net carb count, making them a keto-friendly vegetable. For a standard 100g serving of raw sprouts, you can expect around 8.95g of total carbs and 3.8g of fiber.
How Many Carbs Are in Raw Broccoli?
For a cup of chopped, raw broccoli, the total carbohydrate count is around 6 grams. Of this, about 2.4 grams come from dietary fiber. This results in a lower net carb count per cup compared to raw Brussel sprouts. For a 100g serving, the carbohydrate content is about 6.64g with 2.6g of fiber. This makes broccoli an exceptionally low-carb choice, especially for those aiming for the strictest carbohydrate restrictions.
Net Carbs: The Key Difference
For low-carb dieters, net carbs are often the most important metric, as dietary fiber is not fully digested and doesn't affect blood sugar levels in the same way as other carbohydrates. Here's a breakdown based on raw, chopped vegetables per cup:
- Brussel Sprouts: 7.88g total carbs - 3.34g fiber = 4.54g net carbs
- Broccoli: 6g total carbs - 2.4g fiber = 3.6g net carbs
As this calculation shows, a cup of raw broccoli has fewer net carbs than a cup of raw Brussel sprouts. However, both vegetables are remarkably low in net carbs and can fit into even strict dietary plans like the ketogenic diet.
Cooking Effects on Carbohydrate Content
It's worth noting how cooking methods can affect the carbohydrate content and volume of these vegetables. Boiling can cause slight changes, and when cooked, the density changes, meaning a cup of cooked vegetables will have a different nutritional profile than a cup of raw ones. For example, a cup of cooked Brussel sprouts contains about 11.08g of carbohydrates, as it holds more mass per cup. Steaming or roasting generally preserves nutrients better than boiling, and cooking with fats like olive oil or butter (common in low-carb recipes) increases the calorie and fat content, not the carbs.
Carbohydrate Comparison Table (Per 100g, Raw)
| Nutrient | Brussel Sprouts | Broccoli | 
|---|---|---|
| Total Carbs | 8.95g | 6.64g | 
| Dietary Fiber | 3.8g | 2.6g | 
| Net Carbs | 5.15g | 4.04g | 
| Calories | 43 kcal | 34 kcal | 
| Protein | 3.48g | 2.5g | 
Beyond Carbs: Other Nutritional Benefits
While carbohydrates are a primary concern for some dieters, both vegetables are nutritional powerhouses packed with vitamins, minerals, and antioxidants.
Brussel Sprouts:
- High in Vitamin K: Essential for blood clotting and bone health.
- Rich in Vitamin C: A powerful antioxidant that supports immune function.
- Excellent Source of Fiber: Promotes digestive health and fullness.
- Contains Potassium and Iron: Important for various bodily functions.
Broccoli:
- High in Vitamin K and Vitamin C: Similar to Brussel sprouts, with slightly different amounts.
- Great Source of Folate: Important for cell growth and metabolism.
- Potassium and Calcium: Contributes to nerve function and bone health.
- Antioxidant and Anti-inflammatory Properties: Contains phytonutrients that can help fight free radicals.
Which is Better for Low-Carb Diets?
When deciding between Brussel sprouts and broccoli for a low-carb diet, the best choice depends on your specific needs and preferences. If minimizing net carbs is your absolute priority, broccoli holds a slight edge with its lower net carb count per cup. However, the difference is minimal, and both are excellent, low-carb-friendly choices. Brussel sprouts offer a bit more fiber and protein per 100g, which can be beneficial for satiety. Ultimately, incorporating both into your diet offers a wider range of nutrients and flavors, and their minimal carbohydrate difference is unlikely to impact your dietary goals significantly. Both can be roasted, steamed, or sautéed with healthy fats to create delicious, satisfying meals.
Conclusion
In summary, while both are exceptional choices for low-carb eating, broccoli contains slightly fewer total and net carbohydrates per serving than Brussel sprouts. However, Brussel sprouts offer a bit more protein and fiber per 100g. Both cruciferous vegetables are nutrient-dense, packed with vitamins and minerals, and can be valuable components of a healthy diet, including ketogenic and low-carb plans. Choosing between them often comes down to personal taste, as their carbohydrate profiles are very similar and both offer significant health benefits. For further information on high-fiber foods, check out this guide from the Mayo Clinic.