What role does insulin play regarding bone strength?

• A. Weakens bones
• B. Keeps bones strong
• C. Has no effect on bones
• D. Stimulates bone growth

Answer: (B)

Insulin plays a significant role in maintaining bone strength and health. It is involved in the regulation of several cellular processes related to bone metabolism. One of the key functions of insulin is to promote the uptake of glucose and other nutrients by cells, which supports the energy needs of osteoblasts (the cells responsible for bone formation).

Furthermore, insulin directly influences the activity of osteoblasts, enhancing their proliferation and differentiation, which contributes to an increase in bone density and strength. Additionally, insulin has been shown to have a protective effect against bone resorption, which is the process by which bone is broken down and its minerals released into the bloodstream. This balance between formation and resorption is crucial for maintaining healthy bone structure.

Overall, the positive effects of insulin on bone health underscore its importance in bone metabolism, making its contribution to keeping bones strong well-supported by research and clinical findings.