For osteoporosis try this combination of supplements which includes Ipraflavone/Ostivone. Read about the latter here: Ostivone | Total Bone Health Be sure to click on and read the additional pages at the bottom right of the page.

Also be sure to click on and read the Link at the top left of the page: Ostivone | Ostivone Q & A

This one is excellent for the price (it's the trademarked Ostivone under the Vitamin Shoppe label): Ipriflavone by Vitamin Shoppe - VitaminShoppe.com

For an excellent calcium/magnesium supplement which includes Vitamin D3, Boron, Zinc, Manganese, and Silicon from horsetail, and which is designed to ensure maximum absorption, particularly in the elderly who often suffer from digestive insufficiences such as weakened production of hydrochloric acid, this is one of the very best: Bone Restore, 150 capsules Be sure to read the details about the product and its ingredients with valuable tips about how to take it for optimal absorption.

For a Vitamin K supplement you can't beat Life Extension's SUPER K WITH ADVANCED K2 COMPLEX: Super K with Advanced K2 Complex, 90 softgels Again, read the details about the product in Life Extension's informative and easy to read format.

That simple combination of supplements, along with your daily multivitamin supplement, will provide just about everything you need to build bone, not just prevent loss, except for exercise/resistance!