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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

Anything you already take or are considering?

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.

  • None yet. Type an ingredient in the box above, for example “magnesium” or “turmeric”.

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

Digestion and Bones and Weight

1406 capsules across 57 ingredients

Digestion. The register authorises specific wording about digestion for a few nutrients, quoted exactly on their pages, and refused most of the probiotic and gut wording sellers reach for. The split below is the honest picture. Persistent digestive symptoms are a matter for a GP, and Guts UK is the specialist charity.

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.

Weight. The register takes a strict line on weight claims, and very little is authorised. This page shows the real status of ingredients people discuss for weight, quoted exactly. The NHS Better Health programme below is the evidence-based 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

1 authorised claim · 108 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal bones” · Bones

All 108 magnesium capsules

Vitamin C

1 authorised claim · 68 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of bones” · Bones

All 68 vitamin c capsules

Vitamin D

3 authorised claims · 60 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 60 vitamin d capsules

Zinc

1 authorised claim · 53 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal bones” · Bones

All 53 zinc capsules

Calcium

4 authorised claims · 26 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 the normal function of digestive enzymes” · Digestion

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

All 26 calcium capsules

Vitamin K

1 authorised claim · 20 capsules · ingredient page
  • “Vitamin K contributes to the maintenance of normal bones” · Bones

All 20 vitamin k capsules

Activated Charcoal

1 authorised claim · 8 capsules · ingredient page
  • “Activated charcoal contributes to reducing excessive flatulence after eating” · Digestion

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

All 8 activated charcoal capsules

Manganese

1 authorised claim · 6 capsules · ingredient page
  • “Manganese contributes to the maintenance of normal bones” · Bones

All 6 manganese capsules

sugar beet fibre

1 authorised claim · 4 capsules · ingredient page
  • “Sugar beet fibre contributes to an increase in faecal bulk” · Digestion

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

All 4 sugar beet fibre capsules

Glucomannan

1 authorised claim · 2 capsules · ingredient page
  • “Glucomannan in the context of an energy restricted diet contributes to weight loss” · Weight

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

Chloride

1 authorised claim · 1 capsule · ingredient page
  • “Chloride contributes to normal digestion by production of hydrochloric acid in the stomach” · Digestion

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

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

Assessed by the register and not authorised

The register looked at claims for these relating to digestion and bones and weight 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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