The primary nutrient found in leafy greens that supports bone health is calcium. Leafy greens, such as kale, collard greens, and spinach, are excellent sources of calcium, which is vital for maintaining strong and healthy bones. In addition to calcium, these greens provide other essential nutrients like vitamin K, which also plays a significant role in bone metabolism. Including leafy greens in the diet can help promote bone density and reduce the risk of osteoporosis later in life.