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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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Where the register allows less than sellers suggest

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Thyroid and Focus and Mood and Bones

1479 capsules across 54 ingredients

Thyroid. Only iodine and selenium hold authorised register wording about the thyroid, quoted exactly on their pages. Thyroid conditions are diagnosed and managed by a GP, and the British Thyroid Foundation is the specialist charity.

Focus. Some nutrients hold register claims relating to normal cognitive or psychological function, quoted exactly on their pages. The wording is precise and worth reading as written; anything beyond it is marketing, not authorised claim.

Mood. The register authorises wording for some nutrients relating to normal psychological function, and this page shows which, quoted exactly. Low mood that persists deserves real support rather than a capsule; Mind's information and helplines below are a good place to start.

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.

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

2 authorised claims · 258 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones
  • “Magnesium contributes to normal psychological function” · Mood

All 258 magnesium capsules

Vitamin C

2 authorised claims · 238 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones
  • “Vitamin C contributes to normal psychological function” · Mood

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 normal cognitive function” · Focus

Not authorised for thyroid: the register refused 1 claim there.

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

Not authorised for thyroid: the register refused 1 claim there.

All 172 vitamin d capsules

Vitamin B6

1 authorised claim · 144 capsules · ingredient page
  • “Vitamin B6 contributes to normal psychological function” · Mood

Not authorised for bones or mood: the register refused 2 claims there.

All 144 vitamin b6 capsules

Vitamin B12

1 authorised claim · 123 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood

Not authorised for bones: the register refused 1 claim there.

All 123 vitamin b12 capsules

Folate

1 authorised claim · 104 capsules · ingredient page
  • “Folate contributes to normal psychological function” · Mood

All 104 folate capsules

Biotin

1 authorised claim · 94 capsules · ingredient page
  • “Biotin contributes to normal psychological function” · Mood

Not authorised for bones: the register refused 1 claim there.

All 94 biotin 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

Not authorised for focus: the register refused 1 claim there.

All 76 calcium capsules

Selenium

1 authorised claim · 74 capsules · ingredient page
  • “Selenium contributes to the normal thyroid function” · Thyroid

Not authorised for focus: the register refused 1 claim there.

All 74 selenium capsules

Iron

2 authorised claims · 60 capsules · ingredient page
  • “Iron contributes to normal cognitive function” · Focus
  • “Iron contributes to normal cognitive development of children” · Focus

All 60 iron capsules

Iodine

2 authorised claims · 38 capsules · ingredient page
  • “Iodine contributes to normal cognitive function” · Focus
  • “Iodine contributes to the normal production of thyroid hormones and normal thyroid function” · Thyroid

All 38 iodine capsules

Niacin

1 authorised claim · 38 capsules · ingredient page
  • “Niacin contributes to normal psychological function” · Mood

All 38 niacin capsules

Manganese

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

Not authorised for focus: the register refused 1 claim there.

All 28 manganese capsules

Pantothenic Acid

1 authorised claim · 28 capsules · ingredient page
  • “Pantothenic acid contributes to normal mental performance” · Focus

All 28 pantothenic acid capsules

Thiamine

1 authorised claim · 3 capsules · ingredient page
  • “Thiamine contributes to normal psychological function” · Mood

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 thyroid and focus and mood and bones 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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