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Say what you want help with. The finder shows what the GB register lets any seller claim for it, what the register assessed and refused, and the cheapest capsules per capsule for each ingredient. It quotes; it never advises.

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Bones and Testosterone

1152 capsules across 29 ingredients

Bones. Ingredients here hold register claims relating to the maintenance of normal bones, quoted exactly on their pages. Weight-bearing exercise and dietary calcium are the foundations, and the Royal Osteoporosis Society is the specialist charity for anything further.

Testosterone. Only a small number of ingredients hold register claims mentioning testosterone, and this page quotes them exactly. Claims in this category are heavily marketed well beyond what the register authorises; the split below shows the line.

Nothing here is medical advice. The wording is the GB register's, quoted exactly; whether a product qualifies to use it is the seller's responsibility. Speak to a GP or pharmacist before taking a supplement, especially if you are pregnant, take medicines or have a diagnosed condition. Wording from the GB nutrition and health claims register; mapping reviewed 4 September 2026.

Holds an authorised claim

Magnesium

1 authorised claim · 258 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones

All 258 magnesium capsules

Vitamin C

1 authorised claim · 238 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones

All 238 vitamin c capsules

Zinc

2 authorised claims · 185 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal bones” · Bones
  • “Zinc contributes to the maintenance of normal testosterone levels in the blood” · Testosterone

All 185 zinc capsules

Vitamin D

3 authorised claims · 172 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal bones” · Bones
  • “Vitamin D is needed for normal growth and development of bone in children.” · Bones
  • “Vitamin D helps to reduce the risk of falling associated with postural instability and muscle weakness. Falling is a risk factor for bone fractures among men and women 60 years of age and older.” · Bones

All 172 vitamin d capsules

Vitamin K

1 authorised claim · 80 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones

All 80 vitamin k capsules

Calcium

3 authorised claims · 76 capsules · ingredient page
  • “Calcium helps to reduce the loss of bone mineral in post-menopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures” · Bones
  • “Calcium is needed for normal growth and development of bone in children.” · Bones
  • “Calcium is needed for the maintenance of normal bones” · Bones

All 76 calcium capsules

Manganese

1 authorised claim · 28 capsules · ingredient page
  • “Manganese contributes to the maintenance of normal bones” · Bones

All 28 manganese capsules

Phosphorus

2 authorised claims · 2 capsules · ingredient page
  • “Phosphorus contributes to the maintenance of normal bones” · Bones
  • “Phosphorus is needed for the normal growth and development of bone in children” · Bones

Protein

2 authorised claims · 1 capsule · ingredient page
  • “Protein contributes to the maintenance of normal bones” · Bones
  • “Protein is needed for normal growth and development of bone in children.” · Bones

Assessed by the register and not authorised

The register looked at claims for these relating to bones and testosterone and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.

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