Digestion
5 ingredients with authorised wording · 17 assessed and refused · 303 capsules
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.
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.
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Holds an authorised claim
Calcium
1 authorised claim · 96 capsules · ingredient page- “Calcium contributes to the normal function of digestive enzymes”
Activated Charcoal
1 authorised claim · 17 capsules · ingredient page- “Activated charcoal contributes to reducing excessive flatulence after eating”
The register also refused 1 claim for activated charcoal relating to digestion; only the wording above may be used.
Chloride
1 authorised claim · 5 capsules · ingredient page- “Chloride contributes to normal digestion by production of hydrochloric acid in the stomach”
sugar beet fibre
1 authorised claim · 4 capsules · ingredient page- “Sugar beet fibre contributes to an increase in faecal bulk”
The register also refused 2 claims for sugar beet fibre relating to digestion; only the wording above may be used.
Lactase enzyme
1 authorised claim · 3 capsules · ingredient page- “Lactase enzyme improves lactose digestion in individuals who have difficulty digesting lactose”
Assessed by the register and not authorised
The register looked at claims for these relating to digestion and turned them down. Sellers may not make them. Each links to the exact wording and to the capsules that carry it anyway.
- Apple Cider Vinegar· 1 refused · 49
- Bromelain· 1 refused · 40
- L-Glutamine· 3 refused · 29
- prebiotics· 1 refused · 19
- Saccharomyces Boulardii· 1 refused · 19
- Papain· 1 refused · 11
- Glucomannan· 2 refused · 6
- Lactobacillus Rhamnosus GG· 2 refused · 6
- Acacia gum· 2 refused · 3
- fibre· 1 refused · 3
- Propolis· 2 refused · 3
- Fructo-oligosaccharide· 2 refused · 2
- Papaya· 1 refused · 2
- Sodium Bicarbonate· 1 refused · 2
- Dietary fibre· 1 refused · 1
- Jerusalem Artichoke· 1 refused · 1
- Silicon· 1 refused · 1
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