Bone health and density are essential for maintaining strength, mobility, and independence throughout life. As people age, bone mineral density naturally declines, increasing the risk of fractures and osteoporosis. Nutrition, physical activity, hormones, and lifestyle factors all play important roles in long-term skeletal health. Researchers have studied a variety of supplements for their ability to support bone density, calcium utilization, and overall bone strength. The supplements below are ranked according to the strength of the evidence and their expected real-world impact on bone health and density.