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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.

  • 2500 IU D3 per capsule with K2
  • Normal bones vitamin D contributes
  • Immune function vitamin D contributes
Vitamin D3 & K2

Vitamin D3 & K2

  • 2500 IU D3 per capsule with K2
  • Normal bones vitamin D contributes
  • Immune function vitamin D contributes
£33.02
30 day supply

0.00 per day

  • Calcium and magnesium citrate malate
  • Normal bones calcium and magnesium contribute
  • Normal muscle function magnesium contributes
Calcium & Magnesium Citrate Malate Capsules

Calcium & Magnesium Citrate Malate Capsules

  • Calcium and magnesium citrate malate
  • Normal bones calcium and magnesium contribute
  • Normal muscle function magnesium contributes
£22.92
90 day supply

0.00 per day

  • 150 mcg K2 as MK-7
  • Normal bones vitamin K contributes
  • Normal blood clotting vitamin K contributes
Vitamin K2

Vitamin K2

  • 150 mcg K2 as MK-7
  • Normal bones vitamin K contributes
  • Normal blood clotting vitamin K contributes
£31.68
90 day supply

0.00 per day

  • 133 mg magnesium per capsule
  • Normal muscle and nervous system function
  • Less tiredness magnesium contributes
Magnesium Bisglycinate Capsules

Magnesium Bisglycinate Capsules

  • 133 mg magnesium per capsule
  • Normal muscle and nervous system function
  • Less tiredness magnesium contributes
£24.56
30 day supply

0.00 per day

  • 78 mg calcium with D3 and K2
  • Normal bones calcium, vitamin D and K contribute
  • Vitamin B12 included 74 mcg
OsteoAid Capsules

OsteoAid Capsules

  • 78 mg calcium with D3 and K2
  • Normal bones calcium, vitamin D and K contribute
  • Vitamin B12 included 74 mcg
£46.80
30 day supply

0.00 per day

How to choose a bone health supplement

Nothing on this page treats osteoporosis, and the page says so. Calcium, vitamin D, magnesium and vitamin K contribute to the maintenance of normal bones, which is the claim the evidence supports.

Why these

Vitamin D3 & K2: Vitamin D contributes to normal absorption of calcium and the maintenance of normal bones.

Calcium & Magnesium Citrate Malate Capsules: Calcium and magnesium contribute to the maintenance of normal bones.

Vitamin K2: Vitamin K2 as MK-7; vitamin K contributes to the maintenance of normal bones.

Magnesium Bisglycinate Capsules: Magnesium contributes to the maintenance of normal bones.

OsteoAid Capsules: The bone formula, with what it contains stated.

What to skip

Calcium on its own at high doses, which the trials do not support, and anything promising to reverse bone loss.

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.

Written by Nutri Tailor from the Health Reference Library. Last checked 6 September 2026. General information, not personal advice.

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.