B-complex vitamins are water-soluble, which means a dog's body cannot store much of them for later — whatever isn't used in a day is largely lost, which is the actual reason a daily supplement like this one exists rather than an occasional top-up.

The tablets combine dried brewer's yeast with dicalcium phosphate and a set of individual B-vitamins — nicotinic acid, riboflavin, pyridoxine and thiamin hydrochlorides, folic acid and cyanocobalamin — alongside vitamin E as alpha-tocopheryl acetate and zinc oxide. Analysis comes out at 35% protein, largely from the yeast base.

• Combines B-complex vitamins (niacin, B2, B6, B1, folic acid, B12) with vitamin E and zinc
• Crude protein 35%, calcium 3.21%, oil 2%, phosphorus 2.14%, crude ash 16%
• Suitable for puppies aged 6 weeks and over
• 200 tablets per pack

What the label does not say. Vetzyme give no daily dose by dog weight on this card — only that the tablets are suitable from 6 weeks — so use the guidance on the pack itself for how many to give and how often. This is a supplement, not a treatment for a diagnosed vitamin deficiency, which would need a vet's assessment.

Who it's for: owners looking for a straightforward daily B-vitamin and vitamin E supplement, particularly for a working dog or one whose coat could do with some support.