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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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Name it and the finder says whether the register authorises any claim for it for your goals, or refused one, or has never assessed it.

  • None yet. Type an ingredient in the box above, for example “magnesium” or “turmeric”.

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Seller-stated only: vegan means the seller says vegan.

Joints and Teeth and gums and Blood sugar

1294 capsules across 48 ingredients

Joints. Joints carry the largest set of refused claims in the register: glucosamine, chondroitin, MSM, turmeric and collagen-for-joints wording were all assessed and turned down. What is authorised is narrow and quoted exactly on the ingredient pages: vitamin C for normal collagen formation for the normal function of cartilage, and manganese for normal formation of connective tissue. Versus Arthritis is the specialist charity for anything beyond nutrition.

Teeth and gums. The register authorises wording about the maintenance of normal teeth for several minerals and vitamins, quoted exactly on their pages. Brushing, fluoride and regular check-ups do the real work; the Oral Health Foundation is the specialist charity.

Blood sugar. A small number of ingredients hold authorised register wording about normal blood glucose levels, quoted exactly on their pages; a much larger number of claims about blood sugar were assessed and refused. Nothing here is about treating or preventing diabetes, and anyone managing blood glucose should follow their care team's advice. Diabetes UK is the specialist charity.

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 · 334 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal teeth” · Teeth and gums

Not authorised for blood sugar: the register refused 1 claim there.

All 334 magnesium capsules

Vitamin C

3 authorised claims · 332 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of cartilage” · Joints
  • “Vitamin C contributes to normal collagen formation for the normal function of gums” · Teeth and gums
  • “Vitamin C contributes to normal collagen formation for the normal function of teeth” · Teeth and gums

All 332 vitamin c capsules

Vitamin D

1 authorised claim · 232 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal teeth” · Teeth and gums

All 232 vitamin d capsules

Calcium

1 authorised claim · 96 capsules · ingredient page
  • “Calcium is needed for the maintenance of normal teeth” · Teeth and gums

All 96 calcium capsules

Chromium

1 authorised claim · 62 capsules · ingredient page
  • “Chromium contributes to the maintenance of normal blood glucose levels” · Blood sugar

All 62 chromium capsules

Copper

1 authorised claim · 58 capsules · ingredient page
  • “Copper contributes to maintenance of normal connective tissues” · Joints

Not authorised for blood sugar: the register refused 1 claim there.

All 58 copper capsules

Manganese

1 authorised claim · 32 capsules · ingredient page
  • “Manganese contributes to the normal formation of connective tissue” · Joints

All 32 manganese capsules

Phosphorus

1 authorised claim · 3 capsules · ingredient page
  • “Phosphorus contributes to the maintenance of normal teeth” · Teeth and gums

Assessed by the register and not authorised

The register looked at claims for these relating to joints and teeth and gums and blood sugar 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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