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8) Kale
But dairy is not always the most reliable source of calcium. You would be impressed to know that leafy green vegetables contain even more bioavailable calcium in comparison. For example, kale is sometimes called the “king of vegetables” because of its high nutritional value, including calcium as one of the top ingredients.
Kale is an excellent source of β-carotene, calcium, magnesium, and iron. In particular, calcium in kale is about five times that of spinach. Also, because it is rich in dietary fiber, it is a good vegetable for people with gastrointestinal conditions. Moreover, kale contains vitamin K, which we mentioned above, and contributes to calcium absorption.
