Most supplements are aimed at old dogs, which leaves a gap: the first two years are when a dog's gut, joints and immune system are actually being built, and very little is formulated for that window specifically.

Vet's Best make these for young dogs from 12 weeks to 2 years. Each is a soft chew with duck as the flavour, cold pressed rather than baked, which Vet's Best say preserves the ingredients better. The blend includes pre and probiotics, salmon oil, cod liver oil and ocean kelp, and they describe it as low calorie so it doubles as a training reward rather than an extra on top. Vet's Best state the formulation was put together by veterinarians, and their four stated aims are training rewards rich in omega-3, active joint and mobility support, immune and digestive support, and healthy skin and coat.

• 180 soft chews
• For young dogs from 12 weeks to 2 years
• Duck flavour, cold pressed
• Pre and probiotics, salmon oil, cod liver oil, ocean kelp
• Low calorie, so they double as a training reward

The claims are the maker's, and the amounts are not published. Vet's Best name their ingredients but do not supply us with quantities or a full analysis, so we cannot tell you how much of anything is in a chew — on a supplement that is the number that decides whether it does anything. Their statement that veterinarians formulated it is theirs rather than a claim we can verify. A puppy who is actually unwell, itchy or lame needs seeing rather than supplementing, and a growing dog's joints in particular are worth a vet's opinion rather than a chew.

Who it's for: owners of a puppy or young dog who want a training treat that is doing something else at the same time.