Digestive support treats live or die on whether the functional ingredients are dosed at a level that could plausibly do anything, and this one at least prints the percentages so you can judge for yourself.

This treat is built around 36% salmon protein, with peas (20%), glycerol (20%), collagen (5%) and hydrolysed yeast (5%) making up the bulk, and smaller amounts of red lentils (4%), pumpkin (4%), lignocellulose (3%), fennel (0.5%), Ascophyllum nodosum seaweed (0.5%), FOS (0.5%), MOS (0.5%) and fulvic acids (0.5%). It analyses at 28% protein, 5% fat, 2% crude fibre, 7% crude ash and 17% moisture, working out at 3,070 kcal/kg, and it's grain free.

• 36% salmon protein, with peas, glycerol and collagen making up the rest of the base
• Fennel (0.5%), seaweed (0.5%), FOS and MOS (0.5% each) as functional additions
• Protein 28%, fat 5%, crude fibre 2%, crude ash 7%, moisture 17%
• Calcium 1%, phosphorus 0.8%
• Energy 3,070 kcal/kg
• Grain free

On the functional ingredients. Fennel, seaweed, FOS and MOS are each present at only 0.5% or less — genuinely on the label rather than invented, but at that level they're a small addition to a recipe that's mostly salmon protein, peas and glycerol, not a concentrated supplement. Feeding guidance runs from 6 treats a day for a toy dog up to 34 or more for a giant breed, so check your dog's own weight band before feeding by eye.

Who it's for: owners of dogs with sensitive stomachs who want a salmon-based treat with digestive-support ingredients named and quantified on the pack, not just implied by the product name.