Owners usually reach for something like this after a run of soft stools, a course of antibiotics, or simply an older dog who has lost a bit of spark. Turkey tail is one of the better known functional mushrooms, valued for its beta-glucans and antioxidants, and it has a long traditional use in supporting immune function, gut health and general vitality in dogs and cats.

It comes as a fine powder rather than a capsule or a chew, and that matters more than it sounds. Powder stirs through wet food or dusts over kibble, so a suspicious cat is not left with an obvious lump to eat around, and it is bacon-flavoured for the same reason. A probiotic is blended in alongside the mushroom, and the pack carries scoop guidance stepped by body weight, from small pets up to large ones.

• Turkey tail mushroom with an added probiotic
• Fine powder that mixes into wet or dry food
• Bacon flavour, aimed at fussy eaters
• Scoop guidance stepped by body weight, small pets through to large
• Suitable for dogs and cats at any age
• A daily food topper rather than a treat or a chew

Two things worth knowing. A supplement is not a medicine, and nothing here treats a diagnosed condition. If your pet is unwell, on medication or pregnant, speak to your vet before starting. And introduce it slowly, a part scoop at first, because any sudden change to gut flora can cause loose stools in the first few days even when the product suits the animal perfectly well.

Who it's for: Owners wanting a daily immune and gut-support topper that goes onto food their dog or cat already eats.