Brewer's Yeast for Dogs
Saccharomyces cerevisiae
Brewer's yeast is a nutrient-dense yeast rich in B vitamins and antioxidants. In True Calm it supports the body during stress while also benefiting skin and coat condition.
True Calm
Provides B vitamins and antioxidants in True Calm.
What brewer's yeast brings to the bowl
Brewer's yeast is a deactivated yeast — Saccharomyces cerevisiae — that is naturally high in B-complex vitamins, protein and antioxidants. Deactivated matters: it isn't a live culture, so it plays a nutritional role rather than a probiotic one.
The B vitamins are the part that earns its place in a calming formula. They're involved in the body's stress response and in nervous-system function, so they support the same job the botanicals and amino acids are doing, from a different angle. The antioxidants and protein content also support skin health and coat condition, which is a useful side benefit rather than the headline.
The palatability question
There's a practical reason brewer's yeast appears in so many dog supplements, and it isn't only nutritional: dogs like the taste. It has a savoury, malty flavour that makes a powder far easier to get into a fussy dog.
That matters more than it sounds. The best-formulated calming supplement does nothing at all in a bowl your dog walks away from, and anxious dogs are often the fussiest eaters. If your dog is particular, try mixing the serving into a small spoonful of plain yoghurt or wet food as a starter before their main meal.
Is it safe? The yeast-sensitivity caveat
Brewer's yeast is safe and well tolerated by most healthy adult dogs, and has a long history of use in canine nutrition. It's a food ingredient rather than an active compound.
A small number of dogs are sensitive to yeast, so introduce it gradually and check with your vet first if your dog has known yeast or food sensitivities. Brewer's yeast is a distinct thing from brewer's or baker's live yeast — raw bread dough is genuinely dangerous to dogs, and the deactivated yeast in a supplement is not the same ingredient.
What is brewer's yeast?
Brewer's yeast is a deactivated yeast (Saccharomyces cerevisiae) that's naturally high in B-complex vitamins, protein and antioxidants. It's a long-standing, palatable ingredient in dog nutrition.
Is brewer's yeast safe for dogs?
Brewer's yeast is safe and well tolerated by most healthy adult dogs. A small number of dogs are sensitive to yeast, so introduce it gradually and check with your vet first if your dog has known yeast or food sensitivities.
What does brewer's yeast do for dogs?
It supplies B vitamins and antioxidants that support the body's stress response, plus skin health and coat condition. Its savoury taste also helps make True Calm palatable, so fussy dogs take it readily.
Is brewer's yeast the same as the yeast in bread?
No, and the difference matters. The brewer's yeast in a supplement is deactivated — it's a nutritional ingredient, not a live culture. Live yeast and raw bread dough are genuinely dangerous to dogs and should never be fed. They share a name and very little else.
Does brewer's yeast repel fleas?
It's a popular claim, but the evidence doesn't support it and we don't make it. Brewer's yeast is in True Calm for its B vitamins, antioxidants and palatability. For flea prevention, use a product designed for the job and talk to your vet.
Frankie & Paws supplements are complementary feeds for dogs, not medicines, and aren't intended to diagnose, treat or cure any condition. If your dog is a young puppy, pregnant, nursing, unwell, or taking medication, speak to your vet before introducing a new supplement.
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