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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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Bones and Heart and Focus and Thyroid and Muscles

1647 capsules across 92 ingredients

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.

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.

Focus. Some nutrients hold register claims relating to normal cognitive or psychological function, quoted exactly on their pages. The wording is precise and worth reading as written; anything beyond it is marketing, not authorised claim.

Thyroid. Only iodine and selenium hold authorised register wording about the thyroid, quoted exactly on their pages. Thyroid conditions are diagnosed and managed by a GP, and the British Thyroid Foundation is the specialist charity.

Muscles. Ingredients here hold register claims relating to normal muscle function or muscle protein, quoted exactly on their pages. Resistance exercise and overall protein intake are the fundamentals the claims assume; the NHS exercise guidance below is a good starting point.

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 muscle function” · Muscles

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

All 334 magnesium capsules

Vitamin C

2 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 collagen formation for the normal function of blood vessels” · Heart

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 cognitive function” · Focus

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

All 249 zinc capsules

Vitamin D

5 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
  • “Vitamin D contributes to the maintenance of normal muscle function” · Muscles
  • and 1 more on the ingredient page

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

All 232 vitamin d capsules

Vitamin B6

1 authorised claim · 185 capsules · ingredient page
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Heart

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

All 185 vitamin b6 capsules

Vitamin B12

1 authorised claim · 163 capsules · ingredient page
  • “Vitamin B12 contributes to normal homocysteine metabolism” · Heart

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

All 163 vitamin b12 capsules

Folate

1 authorised claim · 138 capsules · ingredient page
  • “Folate contributes to normal homocysteine metabolism” · Heart

All 138 folate capsules

Vitamin K

1 authorised claim · 106 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones

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 muscle function” · Muscles

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

All 96 calcium capsules

Selenium

1 authorised claim · 95 capsules · ingredient page
  • “Selenium contributes to the normal thyroid function” · Thyroid

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

All 95 selenium capsules

Iron

2 authorised claims · 87 capsules · ingredient page
  • “Iron contributes to normal cognitive function” · Focus
  • “Iron contributes to normal cognitive development of children” · Focus

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

All 87 iron capsules

Choline

1 authorised claim · 49 capsules · ingredient page
  • “Choline contributes to normal homocysteine metabolism” · Heart

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

All 49 choline capsules

Iodine

2 authorised claims · 45 capsules · ingredient page
  • “Iodine contributes to normal cognitive function” · Focus
  • “Iodine contributes to the normal production of thyroid hormones and normal thyroid function” · Thyroid

All 45 iodine capsules

Pantothenic Acid

1 authorised claim · 36 capsules · ingredient page
  • “Pantothenic acid contributes to normal mental performance” · Focus

All 36 pantothenic acid capsules

Manganese

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

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

All 32 manganese capsules

Potassium

2 authorised claims · 32 capsules · ingredient page
  • “Potassium contributes to the maintenance of normal blood pressure” · Heart
  • “Potassium contributes to normal muscle function” · Muscles

All 32 potassium capsules

creatine

2 authorised claims · 20 capsules · ingredient page
  • “Daily creatine consumption can enhance the effect of resistance training on muscle strength in adults over the age of 55.” · Muscles
  • “Creatine increases physical performance in successive bursts of short-term, high intensity exercise” · Muscles

Not authorised for muscles or focus: the register refused 6 claims there.

All 20 creatine capsules

Glucomannan

1 authorised claim · 6 capsules · ingredient page
  • “Glucomannan contributes to the maintenance of normal blood cholesterol levels” · Heart

All 6 glucomannan capsules

Thiamine

1 authorised claim · 5 capsules · ingredient page
  • “Thiamine contributes to the normal function of the heart” · Heart

All 5 thiamine capsules

Beta Glucans

1 authorised claim · 4 capsules · ingredient page
  • “Beta-glucans contribute to the maintenance of normal blood cholesterol levels” · Heart

All 4 beta glucans capsules

Chitosan

1 authorised claim · 4 capsules · ingredient page
  • “Chitosan contributes to the maintenance of normal blood cholesterol levels” · Heart

All 4 chitosan 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

Betaine

1 authorised claim · 2 capsules · ingredient page
  • “Betaine contributes to normal homocysteine metabolism” · Heart

Alpha-Linolenic Acid

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

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

Oleic acid

1 authorised claim · 1 capsule · ingredient page
  • “Replacing saturated fats in the diet with unsaturated fats contributes to the maintenance of normal blood cholesterol levels. Oleic acid is an unsaturated fat.” · Heart

Protein

4 authorised claims · 1 capsule · ingredient page
  • “Protein contributes to the maintenance of normal bones” · Bones
  • “Protein contributes to a growth in muscle mass” · Muscles
  • “Protein contributes to the maintenance of muscle mass” · Muscles
  • “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 bones and heart and focus and thyroid and muscles 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.