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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

Anything you already take or are considering?

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.

Digestion and Mood and Libido

69 capsules across 18 ingredients

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.

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.

Libido. Almost no ingredient holds an authorised register claim in this area, which is itself useful information: sellers may not claim what is not authorised. What people discuss appears below with its actual register status.

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

Vitamin C

1 authorised claim · 36 capsules · ingredient page
  • “Vitamin C contributes to normal psychological function” · Mood

All 36 vitamin c capsules

Vitamin B6

1 authorised claim · 24 capsules · ingredient page
  • “Vitamin B6 contributes to normal psychological function” · Mood

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

All 24 vitamin b6 capsules

Magnesium

1 authorised claim · 18 capsules · ingredient page
  • “Magnesium contributes to normal psychological function” · Mood

All 18 magnesium capsules

Vitamin B12

1 authorised claim · 14 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood

All 14 vitamin b12 capsules

Biotin

1 authorised claim · 13 capsules · ingredient page
  • “Biotin contributes to normal psychological function” · Mood

All 13 biotin capsules

Folate

1 authorised claim · 7 capsules · ingredient page
  • “Folate contributes to normal psychological function” · Mood

All 7 folate capsules

Calcium

1 authorised claim · 5 capsules · ingredient page
  • “Calcium contributes to the normal function of digestive enzymes” · Digestion

All 5 calcium capsules

Niacin

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

All 5 niacin 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

Chloride

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

Assessed by the register and not authorised

The register looked at claims for these relating to digestion and mood and libido 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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