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BestCapsules

Blood and iron

9 ingredients with authorised wording · 3 assessed and refused · 944 capsules

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.

Combine with another goal, or check an ingredient you take →

Holds an authorised claim

Vitamin C

1 authorised claim · 332 capsules · ingredient page
  • “Vitamin C increases iron absorption”

All 332 vitamin c capsules

Vitamin B6

1 authorised claim · 185 capsules · ingredient page
  • “Vitamin B6 contributes to normal red blood cell formation”

All 185 vitamin b6 capsules

Vitamin B12

1 authorised claim · 163 capsules · ingredient page
  • “Vitamin B12 contributes to normal red blood cell formation”

All 163 vitamin b12 capsules

Folate

1 authorised claim · 138 capsules · ingredient page
  • “Folate contributes to normal blood formation”

All 138 folate capsules

Vitamin K

1 authorised claim · 106 capsules · ingredient page
  • “Vitamin K contributes to normal blood clotting”

All 106 vitamin k capsules

Calcium

1 authorised claim · 96 capsules · ingredient page
  • “Calcium contributes to normal blood clotting”

All 96 calcium capsules

Iron

2 authorised claims · 87 capsules · ingredient page
  • “Iron contributes to normal formation of red blood cells and haemoglobin”
  • “Iron contributes to normal oxygen transport in the body”

All 87 iron capsules

Copper

1 authorised claim · 58 capsules · ingredient page
  • “Copper contributes to normal iron transport in the body”

All 58 copper capsules

Riboflavin

1 authorised claim · 36 capsules · ingredient page
  • “Riboflavin contributes to the maintenance of normal red blood cells”

All 36 riboflavin capsules

Assessed by the register and not authorised

The register looked at claims for these relating to blood and iron and turned them down. Sellers may not make them. Each links to the exact wording and to the capsules that carry it anyway.

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