What is a common source of calcium found in vegetables?

Turnips and broccoli are indeed common sources of calcium found in vegetables. Both of these vegetables contribute to dietary calcium intake, which is essential for maintaining strong bones and overall health. Turnip greens, in particular, are a very rich source of calcium, while broccoli not only contains calcium but also offers high levels of vitamin C and other nutrients that can aid in calcium absorption.

While spinach and kale also contain calcium, spinach has oxalates that can inhibit calcium absorption, making it less effective as a source compared to turnips and broccoli. Cabbage and carrots contain lower levels of calcium compared to the other options. Petra greens and herbs, while nutritious, typically do not provide substantial amounts of calcium compared to the vegetables listed in the correct answer. Overall, turnips and broccoli stand out as particularly beneficial choices for including calcium in a vegetable-rich diet.