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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.

Blood and iron and Mood

6 capsules across 6 ingredients

Blood and iron. Ingredients here hold register wording about normal red blood cell formation, oxygen transport, iron absorption or normal blood clotting, quoted exactly on their pages. Suspected iron deficiency needs a blood test before a supplement; the NHS page below explains why.

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.

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

2 authorised claims · 4 capsules · ingredient page
  • “Vitamin C contributes to normal psychological function” · Mood
  • “Vitamin C increases iron absorption” · Blood and iron

All 4 vitamin c capsules

Calcium

1 authorised claim · 3 capsules · ingredient page
  • “Calcium contributes to normal blood clotting” · Blood and iron

Magnesium

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

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

Vitamin B12

2 authorised claims · 2 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood
  • “Vitamin B12 contributes to normal red blood cell formation” · Blood and iron

Vitamin B6

2 authorised claims · 2 capsules · ingredient page
  • “Vitamin B6 contributes to normal psychological function” · Mood
  • “Vitamin B6 contributes to normal red blood cell formation” · Blood and iron

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

Iron

2 authorised claims · 1 capsule · ingredient page
  • “Iron contributes to normal formation of red blood cells and haemoglobin” · Blood and iron
  • “Iron contributes to normal oxygen transport in the body” · Blood and iron

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