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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.

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Joints and Blood and iron

1136 capsules across 32 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.

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.

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 · 238 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of cartilage” · Joints
  • “Vitamin C increases iron absorption” · Blood and iron

All 238 vitamin c capsules

Vitamin B6

1 authorised claim · 144 capsules · ingredient page
  • “Vitamin B6 contributes to normal red blood cell formation” · Blood and iron

All 144 vitamin b6 capsules

Vitamin B12

1 authorised claim · 123 capsules · ingredient page
  • “Vitamin B12 contributes to normal red blood cell formation” · Blood and iron

All 123 vitamin b12 capsules

Folate

1 authorised claim · 104 capsules · ingredient page
  • “Folate contributes to normal blood formation” · Blood and iron

All 104 folate capsules

Vitamin K

1 authorised claim · 80 capsules · ingredient page
  • “Vitamin K contributes to normal blood clotting” · Blood and iron

All 80 vitamin k capsules

Calcium

1 authorised claim · 76 capsules · ingredient page
  • “Calcium contributes to normal blood clotting” · Blood and iron

All 76 calcium capsules

Iron

2 authorised claims · 60 capsules · 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

All 60 iron capsules

Copper

2 authorised claims · 42 capsules · ingredient page
  • “Copper contributes to maintenance of normal connective tissues” · Joints
  • “Copper contributes to normal iron transport in the body” · Blood and iron

All 42 copper capsules

Riboflavin

1 authorised claim · 29 capsules · ingredient page
  • “Riboflavin contributes to the maintenance of normal red blood cells” · Blood and iron

All 29 riboflavin capsules

Manganese

1 authorised claim · 28 capsules · ingredient page
  • “Manganese contributes to the normal formation of connective tissue” · Joints

All 28 manganese capsules

Assessed by the register and not authorised

The register looked at claims for these relating to joints and blood and iron 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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