Supplements for bone health
Vitamin D3 K2, calcium and magnesium, vitamin K2 MK-7, magnesium and OsteoAid: the authorised claims for bones, and what nothing here does.
How to choose a bone health supplement
Strong bones for the long term. Calcium builds them, vitamin D absorbs it, K2 sends it to bone rather than arteries, and magnesium supports the structure. These are the nutrients that matter most as bone density changes with age.
Why these
Vitamin D3 & K2: Keeps bones strong: vitamin D for calcium absorption and K2 to send it to bone. 2500 IU.
Calcium & Magnesium Citrate Malate Capsules: Calcium and magnesium together for bones and teeth, in well absorbed forms.
Vitamin K2: Guides calcium into bone and away from arteries. 150 mcg MK-7, the long acting form.
Magnesium Bisglycinate Capsules: Supports bone strength and eases muscle tension. The gentle chelated form, 133 mg.
OsteoAid Capsules: Calcium, D3, K2 and the co factors for bone density in one formula.
Read the evidence
Which form of vitamin D should you buy? · How long does vitamin D take to work?
If you take prescribed medicines, are pregnant or breastfeeding, or have a diagnosed condition, talk to your GP or pharmacist first. Not sure which fits? Ask Nutri365, the Nutri Tailor AI health expert, which checks for interactions and contraindications.
Common questions
Does anything on this page treat osteoporosis?
No. Calcium, vitamin D, magnesium and vitamin K contribute to the maintenance of normal bones, which is the authorised claim. Osteoporosis is diagnosed and managed by your GP.
Should I take calcium on its own?
High-dose calcium alone is not supported by the trials; the products here pair it with vitamin D and magnesium.
Why vitamin K2 with vitamin D?
Vitamin K contributes to the maintenance of normal bones and normal blood clotting; the two are commonly taken together, and the K2 product states its form as MK-7.
Written by Nutri Tailor from the Health Reference Library. Last checked 6 September 2026. General information, not personal advice.