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BestCapsules

Find capsules by goal

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.

What do you want help with?

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”.

Preferences

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

Blood sugar and Focus

421 capsules across 33 ingredients

Blood sugar. A small number of ingredients hold authorised register wording about normal blood glucose levels, quoted exactly on their pages; a much larger number of claims about blood sugar were assessed and refused. Nothing here is about treating or preventing diabetes, and anyone managing blood glucose should follow their care team's advice. Diabetes UK is the specialist charity.

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.

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

Zinc

1 authorised claim · 71 capsules · ingredient page
  • “Zinc contributes to normal cognitive function” · Focus

All 71 zinc capsules

Iron

2 authorised claims · 19 capsules · ingredient page
  • “Iron contributes to normal cognitive function” · Focus
  • “Iron contributes to normal cognitive development of children” · Focus

All 19 iron capsules

Chromium

1 authorised claim · 18 capsules · ingredient page
  • “Chromium contributes to the maintenance of normal blood glucose levels” · Blood sugar

All 18 chromium capsules

Iodine

1 authorised claim · 16 capsules · ingredient page
  • “Iodine contributes to normal cognitive function” · Focus

All 16 iodine capsules

Pantothenic Acid

1 authorised claim · 14 capsules · ingredient page
  • “Pantothenic acid contributes to normal mental performance” · Focus

All 14 pantothenic acid capsules

Assessed by the register and not authorised

The register looked at claims for these relating to blood sugar and focus 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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