Important nutrients to prevent osteoporosis

"Calcium and vitamin D are the mainstays of nutritional intervention for the prevention and treatment of osteoporosis."

"Other nutritional considerations include nutrients such as vitamin B-12 and vitamin K that may reduce fracture risk by increasing bone mineral density as well as the improvement of bone microarchitecture. Diets high in fruits and vegetables contribute nutrients such as magnesium associated with bone health and may also produce an alkaline environment, reducing calcium excretion and thus improving bone density."

Reference:

Kitchin B, Morgan SL. Not just calcium and vitamin D: other nutritional considerations in osteoporosis. Curr Rheumatol Rep. 2007 Apr;9(1):85-92