Kale is the most nutrient-dense of all leafy vegetables. Vitamin C, Vitamin A, Vitamin K1, Vitamin B6, potassium, calcium, magnesium, copper and manganese, can ALL be found in kale. 100 grams of kale also contains 2 grams of fibre, 3 grams of protein and 50 calories. It’s no wonder people are using kale in everything now. If you’re someone who uses spinach a lot, try replacing it with kale, and reap the benefits.