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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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Seller-stated only: vegan means the seller says vegan.

Blood and iron and Bones and Fertility and Mood

1326 capsules across 44 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.

Bones. Ingredients here hold register claims relating to the maintenance of normal bones, quoted exactly on their pages. Weight-bearing exercise and dietary calcium are the foundations, and the Royal Osteoporosis Society is the specialist charity for anything further.

Fertility. Ingredients here hold register claims relating to fertility and reproduction, quoted exactly. UK guidance on folic acid before and during early pregnancy is the best-established nutritional advice in this area, and Fertility Network UK below offers wider support.

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

Magnesium

2 authorised claims · 334 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones
  • “Magnesium contributes to normal psychological function” · Mood

Not authorised for fertility or blood and iron: the register refused 2 claims there.

All 334 magnesium capsules

Vitamin C

3 authorised claims · 332 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones
  • “Vitamin C contributes to normal psychological function” · Mood
  • “Vitamin C increases iron absorption” · Blood and iron

All 332 vitamin c capsules

Zinc

2 authorised claims · 249 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal bones” · Bones
  • “Zinc contributes to normal fertility and reproduction” · Fertility

All 249 zinc capsules

Vitamin D

3 authorised claims · 232 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal bones” · Bones
  • “Vitamin D is needed for normal growth and development of bone in children.” · Bones
  • “Vitamin D helps to reduce the risk of falling associated with postural instability and muscle weakness. Falling is a risk factor for bone fractures among men and women 60 years of age and older.” · Bones

All 232 vitamin d capsules

Vitamin B6

2 authorised claims · 185 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 bones or mood: the register refused 2 claims there.

All 185 vitamin b6 capsules

Vitamin B12

2 authorised claims · 163 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood
  • “Vitamin B12 contributes to normal red blood cell formation” · Blood and iron

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

All 163 vitamin b12 capsules

Folate

3 authorised claims · 138 capsules · ingredient page
  • “Folate contributes to normal psychological function” · Mood
  • “Folate contributes to maternal tissue growth during pregnancy” · Fertility
  • “Folate contributes to normal blood formation” · Blood and iron

All 138 folate capsules

Biotin

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

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

All 124 biotin capsules

Vitamin K

2 authorised claims · 106 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones
  • “Vitamin K contributes to normal blood clotting” · Blood and iron

All 106 vitamin k capsules

Calcium

4 authorised claims · 96 capsules · ingredient page
  • “Calcium helps to reduce the loss of bone mineral in post-menopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures” · Bones
  • “Calcium is needed for normal growth and development of bone in children.” · Bones
  • “Calcium is needed for the maintenance of normal bones” · Bones
  • “Calcium contributes to normal blood clotting” · Blood and iron

All 96 calcium capsules

Selenium

1 authorised claim · 95 capsules · ingredient page
  • “Selenium contributes to normal spermatogenesis” · Fertility

All 95 selenium capsules

Iron

2 authorised claims · 87 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 87 iron capsules

Copper

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

All 58 copper capsules

Niacin

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

All 46 niacin capsules

Riboflavin

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

All 36 riboflavin capsules

Manganese

1 authorised claim · 32 capsules · ingredient page
  • “Manganese contributes to the maintenance of normal bones” · Bones

All 32 manganese capsules

Thiamine

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

All 5 thiamine capsules

Phosphorus

2 authorised claims · 3 capsules · ingredient page
  • “Phosphorus contributes to the maintenance of normal bones” · Bones
  • “Phosphorus is needed for the normal growth and development of bone in children” · Bones

Protein

2 authorised claims · 1 capsule · ingredient page
  • “Protein contributes to the maintenance of normal bones” · Bones
  • “Protein is needed for normal growth and development of bone in children.” · Bones

Assessed by the register and not authorised

The register looked at claims for these relating to blood and iron and bones and fertility and mood and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.

Support & information

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