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BestCapsules

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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.

Teeth and gums and Joints and Mood and Digestion

1434 capsules across 64 ingredients

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.

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.

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.

Digestion. The register authorises specific wording about digestion for a few nutrients, quoted exactly on their pages, and refused most of the probiotic and gut wording sellers reach for. The split below is the honest picture. Persistent digestive symptoms are a matter for a GP, and Guts 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

2 authorised claims · 334 capsules · ingredient page
  • “Magnesium contributes to normal psychological function” · Mood
  • “Magnesium contributes to the maintenance of normal teeth” · Teeth and gums

All 334 magnesium capsules

Vitamin C

4 authorised claims · 332 capsules · ingredient page
  • “Vitamin C contributes to normal psychological function” · Mood
  • “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

Vitamin B6

1 authorised claim · 185 capsules · ingredient page
  • “Vitamin B6 contributes to normal psychological function” · Mood

Not authorised for teeth and gums or mood: the register refused 2 claims there.

All 185 vitamin b6 capsules

Vitamin B12

1 authorised claim · 163 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood

Not authorised for teeth and gums: the register refused 1 claim there.

All 163 vitamin b12 capsules

Folate

1 authorised claim · 138 capsules · ingredient page
  • “Folate contributes to normal psychological function” · Mood

All 138 folate capsules

Biotin

1 authorised claim · 124 capsules · ingredient page
  • “Biotin contributes to normal psychological function” · Mood

Not authorised for teeth and gums: the register refused 1 claim there.

All 124 biotin capsules

Calcium

2 authorised claims · 96 capsules · ingredient page
  • “Calcium contributes to the normal function of digestive enzymes” · Digestion
  • “Calcium is needed for the maintenance of normal teeth” · Teeth and gums

All 96 calcium capsules

Copper

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

All 58 copper capsules

Niacin

1 authorised claim · 46 capsules · ingredient page
  • “Niacin contributes to normal psychological function” · Mood

All 46 niacin capsules

Manganese

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

All 32 manganese capsules

Activated Charcoal

1 authorised claim · 17 capsules · ingredient page
  • “Activated charcoal contributes to reducing excessive flatulence after eating” · Digestion

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

All 17 activated charcoal capsules

Chloride

1 authorised claim · 5 capsules · ingredient page
  • “Chloride contributes to normal digestion by production of hydrochloric acid in the stomach” · Digestion

All 5 chloride capsules

Thiamine

1 authorised claim · 5 capsules · ingredient page
  • “Thiamine contributes to normal psychological function” · Mood

All 5 thiamine capsules

sugar beet fibre

1 authorised claim · 4 capsules · ingredient page
  • “Sugar beet fibre contributes to an increase in faecal bulk” · Digestion

Not authorised for digestion: the register refused 2 claims there.

All 4 sugar beet fibre capsules

Lactase enzyme

1 authorised claim · 3 capsules · ingredient page
  • “Lactase enzyme improves lactose digestion in individuals who have difficulty digesting lactose” · Digestion

All 3 lactase enzyme 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 teeth and gums and joints and mood and digestion 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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