What is rocket?
Rocket, or arugula, is a leafy green vegetable belonging to the Brassicaceae (mustard) family, related to kale and broccoli. It is celebrated for its distinctive pungent, peppery flavor and is a popular addition to salads, pizzas, and pasta dishes. The leaves can range from mild and tender in younger plants to stronger and more peppery in mature ones. This nutritious green is available year-round and is known for its versatility in both raw and lightly cooked dishes.
Detailed nutritional breakdown of 100g of rocket
A 100-gram serving of raw rocket is packed with beneficial nutrients while remaining incredibly light on calories. Here's a closer look at its composition:
- Macronutrients
- Calories: Approximately 25 kcal
- Protein: 2.6 grams
- Carbohydrates: 3.7 grams
- Fiber: 1.6 grams
- Fat: <1 gram
 
- Micronutrients
- Vitamin K: Critical for bone health and blood clotting.
- Vitamin A: Converted from beta-carotene, it's vital for vision and immunity.
- Vitamin C: A powerful antioxidant that supports immune function.
- Calcium: A mineral essential for strong bones and teeth.
- Folate: Important for cell growth and metabolism.
- Potassium: Plays a key role in regulating blood pressure.
 
This high concentration of vitamins and minerals, coupled with its low energy density, makes rocket an ideal food for those focused on a healthy diet.
How rocket's calorie count compares to other greens
When placed side-by-side with other popular leafy greens, rocket's low-calorie profile shines, particularly when compared to denser or starchy vegetables.
| Vegetable | Calories per 100g | Key Nutritional Feature | 
|---|---|---|
| Rocket (Arugula) | ~25 kcal | High in Vitamins K and A | 
| Kale | ~35 kcal | Excellent source of Vitamin C and K | 
| Spinach | ~23 kcal | Rich in iron and folate | 
| Iceberg Lettuce | ~14 kcal | High water content, lower nutrient density | 
| Romaine Lettuce | ~18 kcal | Good source of folate and potassium | 
As the table shows, rocket holds its own in the leafy green category, offering more nutrient density than common lettuces like iceberg, yet remaining comparable in calorie count to spinach and kale. Its specific nutrient mix, rich in antioxidants and vitamins, provides distinct benefits not found in lighter greens.
Health benefits of a nutrient-dense, low-calorie food
Incorporating low-calorie, high-nutrient foods like rocket into your diet can have a profound impact on overall health. Here are some key benefits:
- Supports Weight Management: With a high water and fiber content, rocket promotes feelings of fullness without contributing significant calories, aiding in appetite control and weight loss.
- Boosts Bone Health: The high vitamin K and calcium levels in rocket are essential for building and maintaining strong bones, and can help prevent osteoporosis.
- Provides Antioxidant Power: As a cruciferous vegetable, rocket contains potent antioxidants like glucosinolates, which may help protect cells from damage and reduce the risk of certain cancers.
- Promotes Heart Health: Antioxidants such as flavonoids and carotenoids found in rocket help reduce inflammation and cholesterol, which can lead to a reduced risk of cardiovascular disease.
- Aids Digestion: The dietary fiber in rocket helps regulate bowel movements and supports a healthy digestive system.
- Enhances Hydration: With a high water content, rocket contributes to overall hydration, an essential part of healthy bodily functions.
How to incorporate rocket into your diet
Rocket's bold, peppery flavor makes it a versatile ingredient. Here are a few simple ways to enjoy it and reap its nutritional rewards:
- Salads: Use it as the base for a salad, or mix it with other greens to add a spicy kick.
- Toppings: Sprinkle fresh rocket over pizzas, stir-fries, and pasta dishes just before serving.
- Pesto: Create a peppery twist on traditional pesto by blending rocket with pine nuts, garlic, and olive oil.
- Sandwiches and Wraps: Add a handful of rocket to your sandwiches and wraps for extra flavor and nutrients.
- Smoothies: A small amount can be added to green smoothies for a health boost without significantly altering the flavor.
For more culinary inspiration, including recipe ideas and cooking techniques, you can explore authoritative sources like BBC Good Food for tips on how to prepare and cook with rocket.
Conclusion
To answer the question, 100 grams of rocket contains a minimal 25 calories, making it a highly desirable addition for those monitoring their calorie intake. Beyond its low-calorie nature, rocket provides an impressive array of vitamins, minerals, and antioxidants, such as vitamins K and A, calcium, and potent glucosinolates, all of which contribute to better health. Its peppery flavor adds a delicious dimension to many dishes, offering a simple way to enhance both the taste and nutritional value of your meals. For a low-calorie food that packs a significant health punch, rocket is an outstanding choice.