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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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Metabolism and Heart and Bones

95 capsules across 44 ingredients

Metabolism. The register's phrase is 'contributes to normal energy-yielding metabolism', and many everyday vitamins and minerals hold it. It is not a claim about weight or about feeling energetic, which is why this goal sits apart from Weight and from Tiredness and fatigue. Wording is quoted exactly on each ingredient page.

Heart. This page collects ingredients whose register claims relate to the heart, blood pressure or cholesterol, quoted exactly. Diet, movement and prescribed medication come first in this area, and the British Heart Foundation below is the specialist charity for reliable information.

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.

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

3 authorised claims · 36 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones
  • “Vitamin C contributes to normal collagen formation for the normal function of blood vessels” · Heart
  • “Vitamin C contributes to normal energy-yielding metabolism” · Metabolism

All 36 vitamin c capsules

Zinc

5 authorised claims · 32 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal bones” · Bones
  • “Zinc contributes to normal carbohydrate metabolism” · Metabolism
  • “Zinc contributes to normal macronutrient metabolism” · Metabolism
  • “Zinc contributes to normal metabolism of fatty acids” · Metabolism
  • and 1 more on the ingredient page

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

All 32 zinc capsules

Vitamin B6

4 authorised claims · 24 capsules · ingredient page
  • “Vitamin B6 contributes to normal energy-yielding metabolism” · Metabolism
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Heart
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Metabolism
  • “Vitamin B6 contributes to normal protein and glycogen metabolism” · Metabolism

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

All 24 vitamin b6 capsules

Vitamin D

3 authorised claims · 22 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 22 vitamin d capsules

Magnesium

2 authorised claims · 18 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones
  • “Magnesium contributes to normal energy-yielding metabolism” · Metabolism

Not authorised for heart or metabolism: the register refused 5 claims there.

All 18 magnesium capsules

Vitamin B12

3 authorised claims · 14 capsules · ingredient page
  • “Vitamin B12 contributes to normal energy-yielding metabolism” · Metabolism
  • “Vitamin B12 contributes to normal homocysteine metabolism” · Heart
  • “Vitamin B12 contributes to normal homocysteine metabolism” · Metabolism

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

All 14 vitamin b12 capsules

Biotin

2 authorised claims · 13 capsules · ingredient page
  • “Biotin contributes to normal energy-yielding metabolism” · Metabolism
  • “Biotin contributes to normal macronutrient metabolism” · Metabolism

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

All 13 biotin capsules

Copper

1 authorised claim · 9 capsules · ingredient page
  • “Copper contributes to normal energy-yielding metabolism” · Metabolism

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

All 9 copper capsules

Iron

1 authorised claim · 9 capsules · ingredient page
  • “Iron contributes to normal energy-yielding metabolism” · Metabolism

Not authorised for heart or metabolism: the register refused 2 claims there.

All 9 iron capsules

Iodine

1 authorised claim · 8 capsules · ingredient page
  • “Iodine contributes to normal energy-yielding metabolism” · Metabolism

All 8 iodine capsules

Folate

2 authorised claims · 7 capsules · ingredient page
  • “Folate contributes to normal homocysteine metabolism” · Heart
  • “Folate contributes to normal homocysteine metabolism” · Metabolism

All 7 folate capsules

Vitamin K

1 authorised claim · 7 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones

All 7 vitamin k capsules

Calcium

4 authorised claims · 5 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 energy-yielding metabolism” · Metabolism

Not authorised for heart or metabolism: the register refused 3 claims there.

All 5 calcium capsules

Chromium

1 authorised claim · 5 capsules · ingredient page
  • “Chromium contributes to normal macronutrient metabolism” · Metabolism

Not authorised for metabolism: the register refused 2 claims there.

All 5 chromium capsules

Manganese

2 authorised claims · 5 capsules · ingredient page
  • “Manganese contributes to the maintenance of normal bones” · Bones
  • “Manganese contributes to normal energy-yielding metabolism” · Metabolism

All 5 manganese capsules

Niacin

1 authorised claim · 5 capsules · ingredient page
  • “Niacin contributes to normal energy-yielding metabolism” · Metabolism

Not authorised for heart: the register refused 2 claims there.

All 5 niacin capsules

Pantothenic Acid

2 authorised claims · 5 capsules · ingredient page
  • “Pantothenic acid contributes to normal energy-yielding metabolism” · Metabolism
  • “Pantothenic acid contributes to normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters” · Metabolism

All 5 pantothenic acid capsules

Riboflavin

2 authorised claims · 5 capsules · ingredient page
  • “Riboflavin contributes to normal energy-yielding metabolism” · Metabolism
  • “Riboflavin contributes to the normal metabolism of iron” · Metabolism

All 5 riboflavin capsules

Choline

3 authorised claims · 3 capsules · ingredient page
  • “Choline contributes to normal homocysteine metabolism” · Heart
  • “Choline contributes to normal homocysteine metabolism” · Metabolism
  • “Choline contributes to normal lipid metabolism” · Metabolism

Vitamin A

1 authorised claim · 2 capsules · ingredient page
  • “Vitamin A contributes to normal iron metabolism” · Metabolism

Not authorised for bones: the register refused 2 claims there.

Glucomannan

1 authorised claim · 1 capsule · ingredient page
  • “Glucomannan contributes to the maintenance of normal blood cholesterol levels” · Heart

Molybdenum

1 authorised claim · 1 capsule · ingredient page
  • “Molybdenum contributes to normal sulphur amino acid metabolism” · Metabolism

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

Potassium

1 authorised claim · 1 capsule · ingredient page
  • “Potassium contributes to the maintenance of normal blood pressure” · Heart

Assessed by the register and not authorised

The register looked at claims for these relating to metabolism and heart and bones 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

Independent organisations for support and reliable information; none endorses any product on this site.