Heart & Bone Health

Evidence on products, treatments, and lifestyle approaches related to cardiovascular and bone health.

Evidence level:

Heart & Bone Health

Vitamin D After 40: Do You Really Need a Supplement?

Vitamin D is essential for calcium absorption and normal bone health, but that does not mean more vitamin D automatically produces stronger bones. For generally healthy adults under 75 who already meet recommended intake, evidence does not show a clear benefit from routinely taking additional vitamin D solely to prevent fractures. People with vitamin D deficiency, osteoporosis, impaired absorption, or other medical indications are a different population and may require individualized evaluation or treatment.

From Approximately $3–$15 per month for common over-the-counter vitamin D supplements, depending on dose, formulation, brand, and retailer. Testing and clinician-directed treatment can add additional cost.Read card