8. Broccoli
Broccoli is a nutritious vegetable high in vitamin C, vitamin K, fiber, and potassium.
It also contains bioactive elements that may help prevent cancer.
When calorie for calorie, it has a higher protein content than other vegetables.
Protein accounts for 33% of total calories. One cup of chopped broccoli (96 grams) has 3 grams of protein and just 31 calories.