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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.

Metabolism and Blood sugar

7 capsules across 6 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.

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.

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

4 authorised claims · 4 capsules · ingredient page
  • Zinc contributes to normal carbohydrate metabolism · Metabolism
  • Zinc contributes to normal macronutrient metabolism · Metabolism
  • Zinc contributes to normal metabolism of fatty acids · Metabolism
  • Zinc contributes to normal metabolism of vitamin A · Metabolism

All 4 zinc capsules

Vitamin C

1 authorised claim · 2 capsules · ingredient page
  • Vitamin C contributes to normal energy-yielding metabolism · Metabolism

Copper

1 authorised claim · 1 capsule · ingredient page
  • Copper contributes to normal energy-yielding metabolism · Metabolism

Not authorised for blood sugar: the register refused 1 claim there.

Iodine

1 authorised claim · 1 capsule · ingredient page
  • Iodine contributes to normal energy-yielding metabolism · Metabolism

Magnesium

1 authorised claim · 1 capsule · ingredient page
  • Magnesium contributes to normal energy-yielding metabolism · Metabolism

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

Riboflavin

2 authorised claims · 1 capsule · ingredient page
  • Riboflavin contributes to normal energy-yielding metabolism · Metabolism
  • Riboflavin contributes to the normal metabolism of iron · Metabolism

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